Modified: websites/production/camel/content/book-languages-appendix.html ============================================================================== --- websites/production/camel/content/book-languages-appendix.html (original) +++ websites/production/camel/content/book-languages-appendix.html Tue Nov 29 09:20:58 2016 @@ -890,7 +890,7 @@ result = body * 2 + 1 </dependency> ]]></script> </div></div> -<h2 id="BookLanguagesAppendix-SimpleExpressionLanguage">Simple Expression Language</h2><p>The Simple Expression Language was a really simple language when it was created, but has since grown more powerful. It is primarily intended for being a really small and simple language for evaluating <a shape="rect" href="expression.html">Expression</a>s and <a shape="rect" href="predicate.html">Predicate</a>s without requiring any new dependencies or knowledge of <a shape="rect" href="xpath.html">XPath</a>; so it is ideal for testing in <strong><code>camel-core</code></strong>. The idea was to cover 95% of the common use cases when you need a little bit of expression based script in your Camel routes.</p><p>However for much more complex use cases you are generally recommended to choose a more expressive and powerful language such as:</p><ul><li><a shape="rect" href="spel.html">SpEL</a></li><li><a shape="rect" href="mvel.html">Mvel</a></li><li><a shape="rect" href="groovy.html">Groovy</a></li> <li><a shape="rect" href="javascript.html">JavaScript</a></li><li><a shape="rect" href="el.html">EL</a></li><li><a shape="rect" href="ognl.html">OGNL</a></li><li>one of the supported <a shape="rect" href="scripting-languages.html">Scripting Languages</a></li></ul><p>The simple language uses <strong><code>${body</code>}</strong> placeholders for complex expressions where the expression contains constant literals. The <strong><code>${ }</code></strong> placeholders can be omitted if the expression is only the token itself.</p><div class="confluence-information-macro confluence-information-macro-tip"><p class="title">Alternative syntax</p><span class="aui-icon aui-icon-small aui-iconfont-approve confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>From Camel 2.5 you can also use the alternative syntax which uses <strong><code>$simple{ }</code></strong> as placeholders. This can be used in situations to avoid clashes when using for exampl e Spring property placeholder together with Camel.</p></div></div><div class="confluence-information-macro confluence-information-macro-tip"><p class="title">Configuring result type</p><span class="aui-icon aui-icon-small aui-iconfont-approve confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>From Camel 2.8 you can configure the result type of the <a shape="rect" href="simple.html">Simple</a> expression. For example to set the type as a <strong><code>java.lang.Boolean</code></strong> or a <code>j<strong>ava.lang.Integer</strong></code> etc.</p></div></div><div class="confluence-information-macro confluence-information-macro-information"><p class="title">File language is now merged with Simple language</p><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>From Camel 2.2, the <a shape="rect" href="file-language.html">File Language</a> is now merged w ith <a shape="rect" href="simple.html">Simple</a> language which means you can use all the file syntax directly within the simple language.</p></div></div><div class="confluence-information-macro confluence-information-macro-information"><p class="title">Simple Language Changes in Camel 2.9 onwards</p><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>The <a shape="rect" href="simple.html">Simple</a> language have been improved from Camel 2.9 to use a better syntax parser, which can do index precise error messages, so you know exactly what is wrong and where the problem is. For example if you have made a typo in one of the operators, then previously the parser would not be able to detect this, and cause the evaluation to be true. There are a few changes in the syntax which are no longer backwards compatible. When using <a shape="rect" href="simple.html">Simple</a> language as a <a shape=" rect" href="predicate.html">Predicate</a> then the literal text <strong>must</strong> be enclosed in either single or double quotes. For example: <code>"<strong>${body} == 'Camel'</strong>"</code>. Notice how we have single quotes around the literal. The old style of using <code>"<strong>body</strong>"</code> and <code>"<strong>header.foo</strong>"</code> to refer to the message body and header is <strong><code>@deprecated</code></strong>, and it is encouraged to always use <strong><code>${ }</code></strong> tokens for the built-in functions.<br clear="none"> The range operator now requires the range to be in single quote as well as shown: <code>"<strong>${header.zip} between '30000..39999'</strong>"</code>.</p></div></div><p>To get the body of the in message: <strong><code>body</code></strong>, or <strong><code>in.body</code></strong> or <strong><code>${body}</code></strong>.</p><p>A complex expression must use <strong><code>${ }</code></strong> placeholders, such as: <st rong><code>Hello ${in.header.name} how are you?</code></strong>.</p><p>You can have multiple functions in the same expression: <code>"<strong>Hello ${in.header.name} this is ${in.header.me} speaking</strong>"</code>. However you can <em><strong>not</strong></em> nest functions in Camel 2.8.x or older e.g., having another <strong><code>${ }</code></strong> placeholder in an existing, is not allowed. From <strong>Camel 2.9</strong> you can nest functions.</p><h3 id="BookLanguagesAppendix-Variables.4">Variables</h3><div class="confluenceTableSmall"><div class="table-wrap"> +<h2 id="BookLanguagesAppendix-SimpleExpressionLanguage">Simple Expression Language</h2><p>The Simple Expression Language was a really simple language when it was created, but has since grown more powerful. It is primarily intended for being a really small and simple language for evaluating <a shape="rect" href="expression.html">Expression</a>s and <a shape="rect" href="predicate.html">Predicate</a>s without requiring any new dependencies or knowledge of <a shape="rect" href="xpath.html">XPath</a>; so it is ideal for testing in <strong><code>camel-core</code></strong>. The idea was to cover 95% of the common use cases when you need a little bit of expression based script in your Camel routes.</p><p>However for much more complex use cases you are generally recommended to choose a more expressive and powerful language such as:</p><ul><li><a shape="rect" href="spel.html">SpEL</a></li><li><a shape="rect" href="mvel.html">Mvel</a></li><li><a shape="rect" href="groovy.html">Groovy</a></li> <li><a shape="rect" href="javascript.html">JavaScript</a></li><li><a shape="rect" href="el.html">EL</a></li><li><a shape="rect" href="ognl.html">OGNL</a></li><li>one of the supported <a shape="rect" href="scripting-languages.html">Scripting Languages</a></li></ul><p>The simple language uses <strong><code>${body</code>}</strong> placeholders for complex expressions where the expression contains constant literals.</p><p><strong>Deprecated</strong>: The <strong><code>${ }</code></strong> placeholders can be omitted if the expression starts with the token, or if the token is only itself.</p><div class="confluence-information-macro confluence-information-macro-tip"><p class="title">Alternative syntax</p><span class="aui-icon aui-icon-small aui-iconfont-approve confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>From Camel 2.5 you can also use the alternative syntax which uses <strong><code>$simple{ }</code></strong> as placeholders. This can be used in situations to avoid clashes when using for example Spring property placeholder together with Camel.</p></div></div><div class="confluence-information-macro confluence-information-macro-tip"><p class="title">Configuring result type</p><span class="aui-icon aui-icon-small aui-iconfont-approve confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>From Camel 2.8 you can configure the result type of the <a shape="rect" href="simple.html">Simple</a> expression. For example to set the type as a <strong><code>java.lang.Boolean</code></strong> or a <code>j<strong>ava.lang.Integer</strong></code> etc.</p></div></div><div class="confluence-information-macro confluence-information-macro-information"><p class="title">File language is now merged with Simple language</p><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>From Camel 2.2, the <a sha pe="rect" href="file-language.html">File Language</a> is now merged with <a shape="rect" href="simple.html">Simple</a> language which means you can use all the file syntax directly within the simple language.</p></div></div><div class="confluence-information-macro confluence-information-macro-information"><p class="title">Simple Language Changes in Camel 2.9 onwards</p><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>The <a shape="rect" href="simple.html">Simple</a> language have been improved from Camel 2.9 to use a better syntax parser, which can do index precise error messages, so you know exactly what is wrong and where the problem is. For example if you have made a typo in one of the operators, then previously the parser would not be able to detect this, and cause the evaluation to be true. There are a few changes in the syntax which are no longer backwards compatible. When using < a shape="rect" href="simple.html">Simple</a> language as a <a shape="rect" href="predicate.html">Predicate</a> then the literal text <strong>must</strong> be enclosed in either single or double quotes. For example: <code>"<strong>${body} == 'Camel'</strong>"</code>. Notice how we have single quotes around the literal. The old style of using <code>"<strong>body</strong>"</code> and <code>"<strong>header.foo</strong>"</code> to refer to the message body and header is <strong><code>@deprecated</code></strong>, and it is encouraged to always use <strong><code>${ }</code></strong> tokens for the built-in functions.<br clear="none"> The range operator now requires the range to be in single quote as well as shown: <code>"<strong>${header.zip} between '30000..39999'</strong>"</code>.</p></div></div><p>To get the body of the in message: <strong><code>body</code></strong>, or <strong><code>in.body</code></strong> or <strong><code>${body}</code></strong>.</p><p>A complex expression must u se <strong><code>${ }</code></strong> placeholders, such as: <strong><code>Hello ${in.header.name} how are you?</code></strong>.</p><p>You can have multiple functions in the same expression: <code>"<strong>Hello ${in.header.name} this is ${in.header.me} speaking</strong>"</code>. However you can <em><strong>not</strong></em> nest functions in Camel 2.8.x or older e.g., having another <strong><code>${ }</code></strong> placeholder in an existing, is not allowed. From <strong>Camel 2.9</strong> you can nest functions.</p><h3 id="BookLanguagesAppendix-Variables.4">Variables</h3><div class="confluenceTableSmall"><div class="table-wrap"> <table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Variable</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Type</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>camelId</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10:</strong> the <a shape="rect" href="camelcontext.html">CamelContext</a> name.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>camelContext.<strong>OGNL</strong></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> the <strong><code>CamelContext</code></strong> invoked using a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1" class=" confluenceTd"><p><code>exchange</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Exchange</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.16:</strong> the <a shape="rect" href="exchange.html">Exchange.</a></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>exchange.<strong>OGNL</strong></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.16:</strong><span> the </span><a shape="rect" href="exchange.html">Exchange</a><span> invoked using a Camel OGNL expression.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>exchangeId</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> the exchange Id.</p></td></tr><tr><td colspan="1" rowspan="1" class="c onfluenceTd"><p><code>id</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The input message Id.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>body</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The input body.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.body</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The input body.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>body.<strong>OGNL</strong></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> the input body invoked using a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.body.<strong>OGNL</strong></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> the input body invoked using a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>bodyAs(<em>type</em>)</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Type</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> Converts the body to the given type determined by its classname. The converted body can be <strong><code>null</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>bodyAs(<em>type</em>).<strong>OGNL</strong></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class=" confluenceTd"><p><strong>Camel 2.18:</strong><span> Converts the body to the given type determined by its classname and then invoke methods using a Camel OGNL expression. The converted body can be <strong><code>null</code></strong>.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>mandatoryBodyAs(<em>type</em>)</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Type</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.5:</strong> Converts the body to the given type determined by its classname, and expects the body to be not <strong><code>null</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>mandatoryBodyAs(<em>type</em>).<strong>OGNL</strong></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.18:</strong><span> Converts the body to the given type determined by its classname and then invoke methods using a Camel OGNL expression.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>out.body</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The output body.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>header.<em>foo</em></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Refer to the input <strong><code>foo</code></strong> header.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>header[<em>foo</em>]</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the input <strong><code>foo</code></strong> header.</p></td></tr ><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>headers.<em>foo</em></code></p></td><td >colspan="1" rowspan="1" >class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p>Refer to the >input <strong><code>foo</code></strong> header.</p></td></tr><tr><td >colspan="1" rowspan="1" >class="confluenceTd"><p><code>headers[<em>foo</em>]</code></p></td><td >colspan="1" rowspan="1" >class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to >the input <strong><code>foo</code></strong> header.</p></td></tr><tr><td >colspan="1" rowspan="1" >class="confluenceTd"><p><code>in.header.<code><em>foo</em></code></code></p></td><td > colspan="1" rowspan="1" >class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p>Refer to the >input <strong><code>foo</code></strong> header.</p></td></tr><tr><td >colspan="1" row span="1" class="confluenceTd"><p><code>in.header[<code><em>foo</em></code>]</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the input <strong><code>foo</code></strong> header.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.headers.<code><em>foo</em></code></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Refer to the input <strong><code>foo</code></strong> header.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.headers[<code><em>foo</em></code>]</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the input <strong><code>foo</code></strong> heade r.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>header.foo[<em>bar</em>]</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> regard input <strong><code>foo</code></strong> header as a map and perform lookup on the map with <strong><code>bar</code></strong> as key.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.header.foo[<code><em>bar</em></code>]</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> regard input <strong><code>foo</code></strong> header as a map and perform lookup on the map with <strong><code>bar</code></strong> as key.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.headers.foo[<code><em>bar</em></code>]</code></p>< /td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> regard input <strong><code>foo</code></strong> header as a map and perform lookup on the map with <strong><code>bar</code></strong> as key.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>header.<code><em>foo</em></code>.OGNL</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the input <strong><code>foo</code></strong> header and invoke its value using a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.header.<code><em>foo</em></code>.OGNL</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2 .3:</strong> refer to the input <strong><code>foo</code></strong> header and invoke its value using a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.headers.<code><em>foo</em></code>.OGNL</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the input <strong><code>foo</code></strong> header and invoke its value using a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>out.header.<code><em>foo</em></code></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Refer to the out header <strong><code>foo</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>out.header[<code><em>foo</em></code>]</code></p></td><td colspan= "1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the out header <strong><code>foo</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>out.headers.<code><em>foo</em></code></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Refer to the out header <strong><code>foo</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>out.headers[<code><em>foo</em></code>]</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the out header <strong><code>foo</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>headerAs(<em>key</em>,<em>type</em>)</code>< /p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Type</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.5:</strong> Converts the header to the given type determined by its classname.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>headers</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Map</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> refer to the input headers.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in.headers</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Map</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> refer to the input headers.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>property.<code><em>foo</em></code></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code ></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong><span >style="color: rgb(255,0,0);">Deprecated</span>:</strong> refer to >the <strong><code>foo</code></strong> property on the >exchange.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>exchangeProperty.<code><em>foo</em></code></code></p></td><td > colspan="1" rowspan="1" >class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><span><strong>Camel 2.15:</strong> refer >to the <strong><code>foo</code></strong> property on the >exchange.</span></p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>property[<code><em>foo</em></code>]</code></p></td><td > colspan="1" rowspan="1" >class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><strong>Deprecated:</strong> refer to >the <strong><code>foo</code></strong> property on the >exchange.</p></td></tr><tr><td colspan="1" row span="1" class="confluenceTd"><p><span><code>exchangeProperty[<code><em>foo</em></code>]</code></span></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.15:</strong><span> refer to the <strong><code>foo</code></strong> property on the exchange.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>property.<code><em>foo</em></code>.OGNL</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Deprecated:</strong> refer to the <strong><code>foo</code></strong> property on the exchange and invoke its value using a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>exchangeProperty.<code><em>foo</em></code>.OGNL</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p>< /td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.15:</strong><span> refer to the <strong><code>foo</code></strong> property on the exchange and invoke its value using a Camel OGNL expression.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sys.<code><em>foo</em></code></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Refer to the system property <span><strong><code>foo</code></strong></span>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sysenv.<code><em>foo</em></code></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the system environment property <span><strong><code>foo</code></strong></span>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>exception</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> Refer to the exception object on the exchange, is <strong><code>null</code></strong> if no exception set on exchange. Will fallback and grab caught exceptions (<strong><code>Exchange.EXCEPTION_CAUGHT</code></strong>) if the Exchange has any.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>exception.OGNL</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> Refer to the exchange exception invoked using a Camel OGNL expression object</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>exception.message</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class= "confluenceTd"><p>Refer to the exception.message on the exchange, is <strong>null</strong> if no exception set on exchange. Will fallback and grab caught exceptions (<strong><code>Exchange.EXCEPTION_CAUGHT</code></strong>) if the Exchange has any.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>exception.stacktrace</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.6.</strong> Refer to the <strong><code>exception.stracktrace</code></strong> on the exchange. Result is <strong><code>null</code></strong> if no exception set on exchange. Will fallback and grab caught exceptions (<strong><code>Exchange.EXCEPTION_CAUGHT</code></strong>) if the Exchange has any.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>date:<em>command</em>:<em>pattern</em></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><co de>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Date formatting using the <strong><code>java.text.SimpleDateFormat</code></strong> patterns. Supported commands are: </p> <ul><li><p><strong><code>now</code></strong> for current timestamp.</p></li><li><p><strong><code>in.header.xxx</code></strong> or <strong><code>header.xxx</code></strong> to use the <strong><code>Date</code></strong> object in the <strong><code>IN</code></strong> header with the key <strong><code>xxx</code></strong>.</p></li><li><p><strong><code>out.header.xxx</code></strong> to use the <strong><code>Date</code></strong> object in the <strong><code>OUT</code></strong> header with the key <strong><code>xxx</code></strong>.</p></li></ul></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>bean:<em>bean expression</em></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Invoking a bean expression using the <a shape="rect" href="bean.html">Bean</a> language. Specifying a method name you must use dot as separator. We also support the <strong ><code>?method=methodname</code></strong> syntax that is used by the <a >shape="rect" href="bean.html">Bean</a> component.</p></td></tr><tr><td >colspan="1" rowspan="1" >class="confluenceTd"><p><code>properties:<em>locations</em>:key</code></p></td><td > colspan="1" rowspan="1" >class="confluenceTd"><p><code>String</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><strong><span style="color: >rgb(255,0,0);">Deprecated</span> (use properties-location instead) Camel >2.3:</strong> Lookup a property with the given key. The ><strong><code>locations</code></strong> option is optional. See more at <a >shape="rect" href="using-propertyplaceholder.html">Using >PropertyPlaceholder</a>.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>properties-location:<em>locations:key</em></code></p></td><td > colspan="1" rowspan="1" >class="confluenceTd"><p><code>String</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><strong>Camel 2.14.1:</strong> Lookup a property with the given key. The <code>locations</code> option is optional. See more at <a shape="rect" href="using-propertyplaceholder.html">Using PropertyPlaceholder</a>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>properties:key:default</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.14.1</strong>: Lookup a property with the given key. If the key does not exists or has no value, then an optional default value can be specified.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>routeId</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> Returns the Id of the current route the <a shape="rect" href="exchange.html">Exchange</a> is being routed.</p></td></tr><tr><td colspan="1" rowspan="1" class= "confluenceTd"><p><code>threadName</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> Returns the name of the current thread. Can be used for logging purpose.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>ref:<em>xxx</em></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.6:</strong> To lookup a bean from the <a shape="rect" href="registry.html">Registry</a> with the given Id.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>type:name.field</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> To refer to a type or field by its FQN name. To refer to a field you can append <stro ng><code>.FIELD_NAME</code></strong>. For example you can refer to the constant field from Exchange as: <strong><code>org.apache.camel.Exchange.FILE_NAME</code></strong></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12.3:</strong> represents a <strong><code>null</code>.</strong></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>random(<em>value</em>)</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Integer</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.16.0: </strong>returns a random Integer between <em><strong><code>0</code></strong></em> (included) and <strong><em>value</em></strong> (excluded)</p></td></tr><tr><td colspan="1" rowspan="1" c lass="confluenceTd"><p><code>random(<em>min</em>,<em>max</em>)</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Integer</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.16.0: </strong>returns a random Integer between <strong><em>min</em></strong> (included) and <strong><em>max</em></strong> (excluded)</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>collate(<em>group</em>)</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>List</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.17:</strong> The collate function iterates the message body and groups the data into sub lists of specified size. This can be used with the <a shape="rect" href="splitter.html">Splitter</a> EIP to split a message body and group/batch the split sub messages into a group of <strong><code>N</code></strong> sub lists. This method works similar to the collate method in Groo vy.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>messageHistory</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.17:</strong> The message history of the current exchange how it has been routed. This is similar to the route stack-trace message history the error handler logs in case of an un-handled exception.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><span><code>messageHistory(false)</code></span></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.17:</strong><span> </span>As <strong><code>messageHistory</code></strong> but without the exchange details (only includes the route strack-trace). This can be used if you do not want to log sensitive data from the message itself.</p></td></tr></tbody></table> </div></div><h3 id="BookLanguagesAppendix-OGNLexpressionsupport">OGNL expression support</h3><p><strong>Available as of Camel 2.3</strong></p><div class="confluence-information-macro confluence-information-macro-information"><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>Camel's OGNL support is for invoking methods only. You cannot access fields.<br clear="none"> From <strong>Camel 2.11.1</strong> onwards we added special support for accessing the length field of Java arrays.</p></div></div><p>The <a shape="rect" href="simple.html">Simple</a> and <a shape="rect" href="bean.html">Bean</a> language now supports a Camel OGNL notation for invoking beans in a chain like fashion. Suppose the Message <strong><code>IN</code></strong> body contains a POJO which has a <strong><code>getAddress()</code></strong> method.</p><p>Then you can use Camel OGNL notation to access the address object: </p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl"> @@ -949,7 +949,7 @@ simple("There are ${body.length} li </div></div><h3 id="BookLanguagesAppendix-OperatorSupport">Operator Support</h3><p>The parser is limited to only support a single operator. To enable it the left value must be enclosed in <strong><code>${ }</code></strong>.</p><p>The syntax is:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl"> <script class="brush: java; gutter: false; theme: Default" type="syntaxhighlighter"><![CDATA[${leftValue} OP rightValue ]]></script> -</div></div><p>Where the <strong><code>rightValue</code></strong> can be a <strong><code>String</code></strong> literal enclosed in <strong><code>' '</code></strong>, <strong><code>null</code></strong>, a constant value or another expression enclosed in<strong><code> ${}</code></strong>.</p><div class="confluence-information-macro confluence-information-macro-information"><p class="title">Important</p><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>There <em><strong>must</strong></em> be spaces around the operator.</p></div></div><p>Camel will automatically type convert the <strong><code>rightValue</code></strong> type to the <strong><code>leftValue</code></strong> type, so it is possible to for example, convert a string into a numeric so you can use <strong><code>></code></strong> comparison for numeric values.</p><p>The following operators are support ed:</p><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>==</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Equals.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>=~</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.16:</strong> equals ignore case (will ignore case when comparing <strong><code>String</code></strong> values).</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Greater than.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>>=</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Greater than or equals.</p></td></tr><tr><td colspan ="1" rowspan="1" class="confluenceTd"><p><code><</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Less than.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code><=</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Less than or equals.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>!=</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Not equals.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>contains</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For testing if contains in a string based value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not contains</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For testing if not contains in a string based value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>regex</code></p></td><td colspan="1" rowspan="1" class="co nfluenceTd"><p>For matching against a given regular expression pattern defined as a <strong><code>String</code></strong> value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not regex</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For not matching against a given regular expression pattern defined as a <strong><code>String</code></strong> value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if in a set of values, each element must be separated by comma.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not in</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if not in a set of values, each element must be separated by comma.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>is</code></p></td><td colspan="1" rowspan="1" class="confluence Td"><p>For matching if the left hand side type is an <strong><code>instanceof</code></strong> the value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not is</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if the left hand side type is not an <strong><code>instanceof</code></strong> the value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>range</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if the left hand side is within a range of values defined as numbers: <strong><code>from..to</code></strong>.</p><p>From <strong>Camel 2.9</strong>: the range values must be enclosed in single quotes.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not range</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if the left hand side is not within a range of values defined as numbers: <strong><code>from..to</code>< /strong>.</p><p>From <strong>Camel 2.9</strong>: the range values must be enclosed in single quotes.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>starts with</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.17.1, 2.18</strong><span>: For testing if the left hand side string starts with the right hand string.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>ends with</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.17.1, 2.18</strong>: For testing if the left hand side string ends with the right hand string.</p></td></tr></tbody></table></div><p>And the following unary operators can be used:</p><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"> <p><code>++</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> To increment a number by one. The left hand side must be a function, otherwise parsed as literal.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>--</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> To decrement a number by one. The left hand side must be a function, otherwise parsed as literal.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>\</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.3 to 2.10.x</strong> To escape a value, e.g., <strong><code>\$</code></strong>, to indicate a <strong><code>$</code></strong> sign. Special: Use <strong><code>\n</code></strong> for new line, <strong><code>\t</code></strong> for tab, and <strong><code>\r</code></strong> for carriage return. </p><p><strong>Note:</strong> Escaping is <stro ng>not</strong> supported using the <a shape="rect" href="file-language.html">File Language</a>.</p><p><span style="color: rgb(255,0,0);"> </span><strong><span style="color: rgb(255,0,0);">Note</span>:</strong> from Camel 2.11, <em>the escape character is no longer supported</em>. It has been replaced with the following three escape sequences.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>\n</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> To use newline character.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>\t</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> To use tab character.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>\r</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> To use carriage return character.</p></td></tr><tr><td colspan="1" rowspan=" 1" class="confluenceTd"><p><code>\</code>}</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.18:</strong> To use the <strong><code>}</code></strong> character as text.</p></td></tr></tbody></table></div><p>And the following logical operators can be used to group expressions:</p><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>and</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><span style="color: rgb(255,0,0);"><strong>Deprecated</strong></span> use <strong><code>&&</code></strong> instead. The logical and operator is used to group two expressions.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>or</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><span sty le="color: rgb(255,0,0);"><strong>Deprecated</strong></span> use <strong><code>||</code></strong> instead. The logical or operator is used to group two expressions.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>&&</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> The logical and operator is used to group two expressions.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>||</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> The logical or operator is used to group two expressions.</p></td></tr></tbody></table></div><div class="confluence-information-macro confluence-information-macro-information"><p class="title">Using and,or operators</p><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>In <strong>Camel 2.4 and older</strong> the <str ong><code>and</code></strong> or <strong><code>or</code></strong> can only be used <strong>once</strong> in a simple language expression. From <strong>Camel 2.5</strong>: you can use these operators multiple times.</p></div></div><p>The syntax for <strong><code>AND</code></strong> is:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl"> +</div></div><p>Where the <strong><code>rightValue</code></strong> can be a <strong><code>String</code></strong> literal enclosed in <strong><code>' '</code></strong>, <strong><code>null</code></strong>, a constant value or another expression enclosed in<strong><code> ${}</code></strong>.</p><div class="confluence-information-macro confluence-information-macro-information"><p class="title">Important</p><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>There <em><strong>must</strong></em> be spaces around the operator.</p></div></div><p>Camel will automatically type convert the <strong><code>rightValue</code></strong> type to the <strong><code>leftValue</code></strong> type, so it is possible to for example, convert a string into a numeric so you can use <strong><code>></code></strong> comparison for numeric values.</p><p>The following operators are support ed:</p><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>==</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Equals.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>=~</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.16:</strong> equals ignore case (will ignore case when comparing <strong><code>String</code></strong> values).</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>></code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Greater than.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>>=</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Greater than or equals.</p></td></tr><tr><td colspan ="1" rowspan="1" class="confluenceTd"><p><code><</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Less than.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code><=</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Less than or equals.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>!=</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Not equals.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>contains</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For testing if contains in a string based value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not contains</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For testing if not contains in a string based value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>regex</code></p></td><td colspan="1" rowspan="1" class="co nfluenceTd"><p>For matching against a given regular expression pattern defined as a <strong><code>String</code></strong> value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not regex</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For not matching against a given regular expression pattern defined as a <strong><code>String</code></strong> value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>in</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if in a set of values, each element must be separated by comma.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not in</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if not in a set of values, each element must be separated by comma.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>is</code></p></td><td colspan="1" rowspan="1" class="confluence Td"><p>For matching if the left hand side type is an <strong><code>instanceof</code></strong> the value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not is</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if the left hand side type is not an <strong><code>instanceof</code></strong> the value.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>range</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if the left hand side is within a range of values defined as numbers: <strong><code>from..to</code></strong>.</p><p>From <strong>Camel 2.9</strong>: the range values must be enclosed in single quotes.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>not range</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>For matching if the left hand side is not within a range of values defined as numbers: <strong><code>from..to</code>< /strong>.</p><p>From <strong>Camel 2.9</strong>: the range values must be enclosed in single quotes.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>starts with</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.17.1, 2.18</strong><span>: For testing if the left hand side string starts with the right hand string.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>ends with</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.17.1, 2.18</strong>: For testing if the left hand side string ends with the right hand string.</p></td></tr></tbody></table></div><p>And the following unary operators can be used:</p><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"> <p><code>++</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> To increment a number by one. The left hand side must be a function, otherwise parsed as literal.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>--</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> To decrement a number by one. The left hand side must be a function, otherwise parsed as literal.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>\</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.3 to 2.10.x</strong> To escape a value, e.g., <strong><code>\$</code></strong>, to indicate a <strong><code>$</code></strong> sign. Special: Use <strong><code>\n</code></strong> for new line, <strong><code>\t</code></strong> for tab, and <strong><code>\r</code></strong> for carriage return.</p><p><strong>Note:</strong> Escaping is <stron g>not</strong> supported using the <a shape="rect" href="file-language.html">File Language</a>.</p><p><span style="color: rgb(255,0,0);"> </span><strong><span style="color: rgb(255,0,0);">Note</span>:</strong> from Camel 2.11, <em>the escape character is no longer supported</em>. It has been replaced with the following three escape sequences.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>\n</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> To use newline character.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>\t</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> To use tab character.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>\r</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> To use carriage return character.</p></td></tr><tr><td colspan="1" rowspan="1 " class="confluenceTd"><p><code>\</code>}</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.18:</strong> To use the <strong><code>}</code></strong> character as text.</p></td></tr></tbody></table></div><p>And the following logical operators can be used to group expressions:</p><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>and</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><span style="color: rgb(255,0,0);"><strong>Deprecated</strong></span> use <strong><code>&&</code></strong> instead. The logical and operator is used to group two expressions.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>or</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><span styl e="color: rgb(255,0,0);"><strong>Deprecated</strong></span> use <strong><code>||</code></strong> instead. The logical or operator is used to group two expressions.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>&&</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> The logical and operator is used to group two expressions.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>||</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> The logical or operator is used to group two expressions.</p></td></tr></tbody></table></div><div class="confluence-information-macro confluence-information-macro-information"><p class="title">Using and,or operators</p><span class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>In <strong>Camel 2.4 and older</strong> the <stro ng><code>and</code></strong> or <strong><code>or</code></strong> can only be used <strong>once</strong> in a simple language expression. From <strong>Camel 2.5</strong>: you can use these operators multiple times.</p></div></div><p>The syntax for <strong><code>AND</code></strong> is:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl"> <script class="brush: java; gutter: false; theme: Default" type="syntaxhighlighter"><![CDATA[${leftValue} OP rightValue and ${leftValue} OP rightValue ]]></script> </div></div><p>And the syntax for <strong><code>OR</code></strong> is:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
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