[CONF] OpenJPA: Runtime Enhancement (page created)

Mon, 18 May 2009 10:54:37 -0700

Page Created : openjpa : Runtime Enhancement

Runtime Enhancement has been created by Donald Woods (May 18, 2009).

Content:

The first runtime enhancement method is to provide a javaagent when launching the JVM that OpenJPA is going run in. 

-javaagent:<openjpa_jar_location>


For Eclipse, specify the above javaagent value on the Run Configuration page.



For ANT, provide the javaagent value as a jvmarg when launching an application. Below is a snippet that shows how to pass in the javaagent when launching a Java SE application that uses OpenJPA.





<path id="jpa.enhancement.classpath">
            <pathelement location="bin"/>
            <!-- lib contains all of the jars that came with the OpenJPA binary download -->
            <fileset dir="lib">
                <include name="**/*.jar"/>
            </fileset>
        </path>
    ...
    <target name="drive" depends="clean, build">
            <echo message="Running test with run time enhancement."/>
            <java classname="main.Driver" failonerror="true" fork="yes">
                <jvmarg value="-javaagent:${openJPA-jar}"/>
                <classpath refid="jpa.enhancement.classpath"/>
            </java>
        </target>

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