On 6/19/06, Hubert Rabago <[EMAIL PROTECTED]> wrote:
Is the sample in this message valid:
http://marc.theaimsgroup.com/?l=jakarta-commons-user&m=111974074105369&w=2
<snip/>
No, its not.
SomeObject thingy = new SomeObject();
thingy.setFoo( "Blah" );
String expr =
"JEXL let's you do everything you'd do with EL. ${thingy.foo}";
<snap/>
Two issues about parsing that:
* Single quotes demarcate String literals, and cannot be used at will like that
* JEXL has no concept of ${...} and will not attach any semantics to
the construct
I suspect you can try:
String expr = " ' JEXL lets you do everything you would do with EL. '
+ thingy.foo "
for the desired outcome (whitespace exaggerated for readability in email).
-Rahul
Expression e = ExpressionFactory.createExpression( expr );
JexlContext jc = JexlHelper.createContext( );
jc.getVars( ).put("thingy", thingy);
String message = (String) e.evaluate(jc);
I need this functionality in my app. I tried out the code above but got this:
org.apache.commons.jexl.parser.ParseException: Encountered "let" at
line 1, column 6.
Was expecting one of:
"||" ...
... etc ...
at
org.apache.commons.jexl.parser.Parser.generateParseException(Parser.java:3274)
... etc ...
What's the proper way of evaluating "expr" in the sample above using JEXL?
thanks,
Hubert
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