platform-ui/plugins/org.eclipse.ui.examples.filesystem/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>
<plugin>
   <extension
         id="org.eclipse.core.filesystem.zip"
         point="org.eclipse.core.filesystem.filesystems">
      <filesystem scheme="zip">
         <run class="org.eclipse.core.internal.filesystem.zip.ZipFileSystem"/>
      </filesystem>
   </extension>
	<extension
	      point="org.eclipse.core.filesystem.filesystems">
	   <filesystem scheme="memory">
	      <run class="org.eclipse.core.internal.filesystem.memory.MemoryFileSystem"/>
	   </filesystem>
	</extension>
   <extension
         point="org.eclipse.ui.popupMenus">
      <objectContribution
            id="org.eclipse.ui.examples.filesystem.contribution1"
            objectClass="org.eclipse.core.resources.IFile">
         		<enablement>
		            <or>
		               <objectState name="extension" value="jar"/>
   		            <objectState name="extension" value="zip"/>
   		         </or>
         		</enablement>
         <action
               class="org.eclipse.ui.examples.filesystem.ExpandZipAction"
               enablesFor="1"
               id="org.eclipse.ui.examples.filesystem.expandZip"
               label="Expand Zip File"
               menubarPath="additions"/>
      </objectContribution>
   </extension>
   <extension
         point="org.eclipse.ui.popupMenus">
      <objectContribution
            id="org.eclipse.ui.examples.filesystem.contribution2"
            objectClass="org.eclipse.core.resources.IFolder">
         		<enablement>
		            <or>
		               <objectState name="extension" value="jar"/>
   		            <objectState name="extension" value="zip"/>
   		         </or>
         		</enablement>
         <action
               class="org.eclipse.ui.examples.filesystem.CollapseZipAction"
               enablesFor="1"
               id="org.eclipse.ui.examples.filesystem.collapseZip"
               label="Collapse Zip File"
               menubarPath="additions"/>
      </objectContribution>
   </extension>
   <extension
         point="org.eclipse.ui.popupMenus">
      <objectContribution
            id="org.eclipse.ui.examples.filesystem.contribution3"
            objectClass="org.eclipse.core.resources.IResource">
         <action
               class="org.eclipse.ui.examples.filesystem.IncludeResourceAction"
               enablesFor="1"
               id="org.eclipse.ui.examples.filesystem.includeResource"
               label="Include Resource"
               menubarPath="additions"/>
         <action
               class="org.eclipse.ui.examples.filesystem.ExcludeResourceAction"
               enablesFor="1"
               id="org.eclipse.ui.examples.filesystem.excludeResource"
               label="Exclude Resource"
               menubarPath="additions"/>
      </objectContribution>
   </extension>
   <extension
         point="org.eclipse.ui.popupMenus">
      <objectContribution
            id="org.eclipse.ui.examples.filesystem.contribution4"
            objectClass="org.eclipse.core.resources.IProject">
         <action
               class="org.eclipse.ui.examples.filesystem.CreatedNestedProjectsAction"
               enablesFor="1"
               id="org.eclipse.ui.examples.filesystem.createdNested"
               label="Create Nested Projects"
               menubarPath="additions"/>
      </objectContribution>
   </extension>
   <extension
         point="org.eclipse.ui.ide.filesystemSupport">
      <filesystemContributor
            class="org.eclipse.core.internal.filesystem.zip.ZipFileSystemContributor"
            label="Zip file"
            scheme="zip"/>
      <filesystemContributor
            class="org.eclipse.core.internal.filesystem.memory.MemoryFileSystemContributor"
            label="In Memory"
            scheme="memory"/>
   </extension>
   <extension
         point="org.eclipse.core.runtime.adapters">
      <factory
            adaptableType="org.eclipse.core.internal.filesystem.memory.MemoryFileStore"
            class="org.eclipse.core.internal.filesystem.memory.MemoryAdapterFactory">
         <adapter type="org.eclipse.ui.model.IWorkbenchAdapter"/>
      </factory>
   </extension>

</plugin>