[jboss-dev-forums] [Design of POJO Server] - Re: Using temp at undeploy

[alesj]

"alesj" wrote : 
  | More to follow ...
  | 
OK, I'm done with the change,
and I'm happy with how it's done. :-)

I added a simple StructureProcessor interface

  | public interface StructureProcessor
  | {
  |    /**
  |     * Prepare structure metadata.
  |     *
  |     * @param deployment the deployment
  |     * @param structureMetaData the structure metadata
  |     */
  |    void prepareStructureMetaData(Deployment deployment, StructureMetaData structureMetaData);
  | 
  |    /**
  |     * Prepare context info.
  |     *
  |     * @param parentDeploymentContext the parent deployment context
  |     * @param contextInfo the context info
  |     */
  |    void prepareContextInfo(DeploymentContext parentDeploymentContext, ContextInfo contextInfo);
  | 
  |    /**
  |     * Apply structure metadata.
  |     *
  |     * @param deploymentContext the deployment context
  |     * @param structureMetaData the structure metadata
  |     */
  |    void applyStructureMetaData(DeploymentContext deploymentContext, StructureMetaData structureMetaData);
  | 
  |    /**
  |     * Apply context info.
  |     *
  |     * @param deploymentContext the deployment context
  |     * @param contextInfo the context info
  |     */
  |    void applyContextInfo(DeploymentContext deploymentContext, ContextInfo contextInfo);
  | }
  | 
which gets appropriately called in AbstractStructureBuilder.

Currently the only impl is ModificationTypeStructureProcessor.
This one hold a list of previously mentioned ModificationTypeMatchers.
ModificationTypeMatcher now looks like this:

  | public interface ModificationTypeMatcher
  | {
  |    /**
  |     * Should we modify the file.
  |     *
  |     * @param root the deployment root
  |     * @param structureMetaData the current structure metadata
  |     * @return true if we determined modification
  |     */
  |    boolean determineModification(VirtualFile root, StructureMetaData structureMetaData);
  | 
  |    /**
  |     * Should we modify the file.
  |     *
  |     * @param root the deployment root
  |     * @param contextInfo the current context info
  |     * @return true if we determined modification
  |     */
  |    boolean determineModification(VirtualFile root, ContextInfo contextInfo);
  | }
  | 

The test on how this is applied in 'reality':
 - http://anonsvn.jboss.org/repos/jbossas/projects/jboss-deployers/trunk/deployers-vfs/src/test/java/org/jboss/test/deployers/vfs/structureprocessor/test/VFSStructureProcessorUnitTestCase.java


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