Description Erich Gamma 2001-10-10 22:22:02 EDT

EG (4/10/01 3:11:15 PM)
	The Project References Property page should also be available on an IJavaProject.
	The problem is that IJavaProject has an IResource but isn't one.
	One solution is to make the ReferencePropertyPage class API and we will contribute
	it for IJavaProject.

	Another solution is to add support to the plugin.xml markup for specifying that 
	getAdapter(IResource) should be called for an object first before going through
	the contribution mechanism.

NOTES:
EG (4/18/01 5:26:05 PM)
	The solution implemented in the debugger is register the propery page
	against both the IProject and IJavaProject:
<extension point = "com.ibm.eclipse.ui.propertyPages">
	<page
		id = "com.ibm.dt.internal.ui.LauncherPropertyPage"
		class="com.ibm.dt.internal.ui.LauncherPropertyPage"
		objectClass="com.ibm.eclipse.core.resources.IProject"
		name= "%LauncherPropertyPage.name">
	</page>
	<page
		id = "com.ibm.dt.internal.ui.LauncherPropertyPage"
		class ="com.ibm.dt.internal.ui.LauncherPropertyPage"
		objectClass="com.ibm.jdt.core.IJavaProject"
		name= "%LauncherPropertyPage.name">
	</page>
</extension>

	This would be a layer breaker for the workbench and this solution
	isn't applicable in this case. 
	What we could do in the Java tooling is to register the ProjectReferencePage.
	However, this would require that we refer to the internal ProjectReferencePage.
	   	<page name="Project References"
  	   id="com.ibm.eclipse.ui.propertypages.project.reference"
           objectClass="com.ibm.eclipse.core.resources.IProject"
           class="com.ibm.eclipse.internal.ui.dialogs.ProjectReferencePage">
   	</page>

	To make this clean would require to make the ProjectReferencePage accessible
	as API. Since we will not call any method on the ProjectReferencePage the API
	is basically the class name.

EG (4/18/01 7:40:17 PM)
	Tried the above but it didn't work since the ProjectReferencePage does a 
	hard cast on IProject without checking for the IResource adapter.
	See the code below.

	private void initialize() {
		>>>>project= (IProject) getElement();
		noDefaultAndApplyButton();
		StringBuffer buf= new StringBuffer();
		buf.append("Projects may refer to other projects in the workspace.\n");
		buf.append("Use this page to specify what other projects are referenced\n");
		buf.append("by project ");
		buf.append(project.getName());
		buf.append(".");
		setDescription(buf.toString());

TC (5/1/01 4:48:32 PM) - this has been changed to the following 
project = (IProject) getElement().getAdapter(IResource.class);

but we still need to determine what the final answer should be as this is an internal class