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<task id="tjcircleb" xml:lang="en-us"> | |
<title outputclass="id_title">Correcting cyclical dependencies after an EAR | |
is imported</title> | |
<shortdesc outputclass="id_shortdesc">You can resolve cyclical dependencies | |
after an EAR is imported.</shortdesc> | |
<prolog><metadata> | |
<keywords><indexterm>dependencies<indexterm>correcting cyclical</indexterm></indexterm> | |
<indexterm>EAR<indexterm>correcting cyclical dependencies</indexterm></indexterm> | |
<indexterm>projects<indexterm>correcting cyclical dependencies</indexterm></indexterm> | |
</keywords> | |
</metadata></prolog> | |
<taskbody outputclass="id_taskbody"> | |
<context outputclass="id_context"><p outputclass="anchor_topictop"></p> | |
<p>A cyclical dependency between two or more modules in an enterprise application most commonly | |
occurs when projects are imported from outside the workbench. When a cycle | |
exists between two or more modules in an enterprise application, the <tm tmclass="special" | |
tmowner="Sun Microsystems, Inc." tmtype="tm" trademark="Java">Java</tm> builder | |
cannot accurately compute the build order of the projects. Full builds fail | |
under these conditions, or require several invocations.</p><p>Therefore, the | |
best practice is to organize your projects or modules into components. This | |
allows your module dependencies to function as a tree instead of a cycle diagram. | |
This practice has the added benefit of producing a better factored and layered | |
application.</p></context> | |
<steps outputclass="id_steps"> | |
<step><cmd>Identify all the classes within the JAR files that have cyclical | |
dependencies, then move those classes into a common <tm tmclass="special" | |
tmowner="Sun Microsystems, Inc." tmtype="tm" trademark="Java">Java</tm> project | |
or JAR file.</cmd></step> | |
<step><cmd>Use the enterprise application editor to map utility JAR files | |
to the common projects.</cmd></step> | |
<step><cmd>Use the JAR dependency editor or properties page, for each module | |
of the JAR in the application, to set dependencies only to the JAR files that | |
are truly required.</cmd></step> | |
</steps> | |
<postreq outputclass="id_postreq"><p outputclass="anchor_topicbottom"></p></postreq> | |
</taskbody> | |
</task> |