Bug 119331 Library - name space terminology and behavior
During BIRT 2.0 library feature review meeting the following change was decided. - Change the term namespace to 'prefix' - By default use the library name as the prefix ( namespace ); the dialog to input prefix should be prompted only if hte auto generated prefix is not unique.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/palette/ReportTemplateTransferDropTargetListener.java
transName = InsertInLayoutAction.DISPLAY_TEXT;
			Object objectType = getFactory( template ).getObjectType( );
			if ( objectType instanceof DataSetHandle )
			{
				preHandle = new DataSetToolExtends( );
			}
			else if ( objectType instanceof DataSetItemModel )
			{
				preHandle = new DataSetColumnToolExtends( );
			}
			else if ( objectType instanceof ScalarParameterHandle )
			{
				preHandle = new ParameterToolExtends( );
			}
		}
		else if ( handleValidateLibrary( template ) )
		{
			preHandle = new LibraryElementsToolHandleExtends( (DesignElementHandle) getSingleTransferData( template ) );
		}
		if ( preHandle != null )
		{
			SessionHandleAdapter.getInstance( )
					.getReportDesignHandle( )
					.getCommandStack( )
					.startTrans( transName );
			preHandle.setRequest( this.getCreateRequest( ) );
			preHandle.setTargetEditPart( getTargetEditPart( ) );
			Command command = this.getCommand( );
			if ( command != null && command.canExecute( ) )
			{