Bug 130495 Get rid of SessionHandleAdapter
Now, we use SessionHandleAdapter to keep current active report deisng. That's a bad practive for editor swith and rebuild will cuase lots of problmes. Need find way to replace it.
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/ui/editors/pages/ReportLayoutEditorFormPage.java
}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.designer.ui.editors.schematic.layout.ReportLayoutEditor#getAdapter(java.lang.Class)
	 */
	public Object getAdapter( Class adapter )
	{
		if ( adapter == DataViewPage.class )
		{
			if ( dataViewPage == null )
			{
				dataViewPage = new DataViewTreeViewerPage( getModel( ) );
			}
			return dataViewPage;
		}
		return super.getAdapter( adapter );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.designer.ui.editors.IReportEditorPage#onBroughtToTop(org.eclipse.birt.report.designer.ui.editors.IReportEditorPage)
	 */
	public boolean onBroughtToTop( IReportEditorPage prePage )
	{
		if ( getEditorInput( ) != prePage.getEditorInput( ) )
		{
			setInput( prePage.getEditorInput( ) );
		}
		ModuleHandle model = SessionHandleAdapter.getInstance( )