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Diffstat (limited to 'docs/sandbox/trails/j2ee.txt')
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diff --git a/docs/sandbox/trails/j2ee.txt b/docs/sandbox/trails/j2ee.txt new file mode 100644 index 000000000..8685939b1 --- /dev/null +++ b/docs/sandbox/trails/j2ee.txt @@ -0,0 +1,34 @@ + +This contains short notes on using AspectJ with various J2EE +servers and deployment tools. + +// @author Wes Isberg + +-------- START-SAMPLE j2ee-servlets-generally Using AspectJ in servlets +AspectJ programs work if run in the same namespace and with aspectjrt.jar. +Servlet runners and J2EE web containers should run AspectJ programs fine +if the classes and required libraries are deployed as usual. The runtime +classes and shared aspects might need to be deployed into a common +directory to work properly across applications, especially in containers +that use different class loaders for different applications or use +different class-loading schemes. + +As with any shared library, if more than one application is using AspectJ, +then the aspectjrt.jar should be deployed where it will be loaded by a +common classloader. + +Aspects which are used by two applications might be independent or shared. +Independent aspects can be deployed in each application-specific archive. +Aspects might be shared explicitly or implicitly, as when they are stateful +or staticly bound (however indirectly) to common classes. When in doubt, +it is safest to deploy the aspects in the common namespace. + +-------- END-SAMPLE j2ee-servlets-generally + +-------- START-SAMPLE j2ee-servlets-tomcat4 Running AspectJ servlets in Tomcat 4.x +To deploy an AspectJ program as a Tomcat servlet, +place aspectjrt.jar in shared/lib and deploy the required libraries +and AspectJ-compiled servlet classes as usual. + +-------- END-SAMPLE j2ee-servlets-tomcat4 + |