thanks mark,
do you mind putting this into a wiki page ? :)
-Matthias
On Wed, Feb 10, 2010 at 10:10 AM, Mark Struberg <strub...@yahoo.de> wrote:
> Hiho!
>
> It is possible, but only with a little trick.
> Using a parameter in the EL is a new EL-2.2 feature which is _not_ part of
> JSP-2.1 delivered with tomcat6 and jetty6 but defined in JSR-245 MR-2
> (JSP-2.2) [1].
>
> You can enable EL-2.2 by using a few tricks even in tomcat-6 and jetty6.
> Here is how goes:
>
> A.) You have to use el-api.jar and el-impl.jar from the glassfish reference
> implementation. In your pom.xml:
>
> <!-- EL 2 -->
> <dependency>
> <groupId>javax.el</groupId>
> <artifactId>el-api</artifactId>
> <version>2.2</version>
> <scope>provided</scope>
> </dependency>
> <profiles>
> <profile>
> <id>jetty</id>
> <build>
> <plugins>
> <plugin>
> <groupId>org.mortbay.jetty</groupId>
> <artifactId>maven-jetty-plugin</artifactId>
> <version>${jetty-version}</version>
> <configuration>
> <scanIntervalSeconds>10</scanIntervalSeconds>
> </configuration>
> </plugin>
> </plugins>
> </build>
> <dependencies>
> <dependency>
> <groupId>javax.el</groupId>
> <artifactId>el-api</artifactId>
> <version>2.2</version>
> <scope>compile</scope>
> </dependency>
> <dependency>
> <groupId>org.glassfish.web</groupId>
> <artifactId>el-impl</artifactId>
> <scope>runtime</scope>
> <version>2.2</version>
> </dependency>
> </dependencies>
> </profile>
> </profiles
>
> This will allow you to use EL-2.2 by running
> $> mvn clean install -Pjetty jetty:run
>
> B.) preparing tomcat
> 1. go to the tomcat home directory
> 2. remove tomcats el-api.jar from the classpath:
> $> mv ./lib/el-api.jar ./lib/el-api.jar.nixda
>
> 3. copy the EL-2.2 jars into ./lib (el-api-2.2.jar, el-impl-2.2.jar)
> 4. make sure that the applications don't contain those 2 el jars!
>
> voila, have fun!
>
> LieGrue,
> strub
>
> [1] http://jcp.org/aboutJava/communityprocess/mrel/jsr245/index.html
>
>
> --- Michael Kurz <michi.k...@gmx.at> schrieb am Mi, 10.2.2010:
>
>> Von: Michael Kurz <michi.k...@gmx.at>
>> Betreff: Re: el expression
>> An: users@myfaces.apache.org
>> Datum: Mittwoch, 10. Februar 2010, 9:33
>> Hi,
>>
>> it is true that it is not possible to use method parameters
>> or to call
>> methods of an object that are no getters or setters (at
>> least before
>> Java EE 6).
>>
>> But there are ways to bypass this limitation:
>>
>> * If you only want to call a method in an EL expression you
>> could define
>> an EL function (possible with JSP and Facelets).
>>
>> * If you want to pass a parameter to an action method you
>> could use an
>> alternative EL implementation like JBoss EL (see [1]). For
>> this you have
>> to include the JBoss EL libraries and replace the
>> expression factory of
>> MyFaces like this in your web.xml:
>>
>> <!-- Replace ExpressionFactory for
>> Apache MyFaces -->
>> <context-param>
>>
>> <param-name>org.apache.myfaces.EXPRESSION_FACTORY</param-name>
>>
>> <param-value>org.jboss.el.ExpressionFactoryImpl</param-value>
>> </context-param>
>>
>> regards
>> Michael
>>
>> [1]:
>> http://docs.jboss.org/seam/2.0.1.GA/reference/en/html/elenhancements.html
>>
>> Am 10.02.2010 09:20, schrieb Martin Monshausen:
>> > Hi,
>> > calling methods with parameters is not possible in JSF
>> as far as I know. Try to set Parameter in Bean before
>> calling the method and then refer to it in your
>> parameter-less method.
>> > Yours,
>> >
>> > Martin
>> > ________________________________
>> >
>> > Von: Krishna K. Pandit [mailto:krishna.pan...@aptuit.com]
>> > Gesendet: Mi 10.02.2010 06:14
>> > An: MyFaces Discussion
>> > Betreff: el expression
>> >
>> >
>> >
>> > Hi all
>> >
>> > Can any one can help me how to pass a parameter to a
>> method while
>> > calling it in EL expression.
>> > Im trying this
>> >
>> > "#{myBean.method('JAVA')}
>> >
>> > But I m getting errors while rendering.
>> >
>> > Thanks
>> > Krishna Pandit
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>> >
>>
>
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--
Matthias Wessendorf
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