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
if ( !( preHandle.preHandleMouseUp( ) ) )
				{
					SessionHandleAdapter.getInstance( )
							.getReportDesignHandle( )
							.getCommandStack( )
							.rollback( );
					return;
				}
			}
			super.handleDrop( );
			SessionHandleAdapter.getInstance( )
					.getReportDesignHandle( )
					.getCommandStack( )
					.commit( );
			selectAddedObject( );
		}
	}
	/**
	 * Validates drag source from palette, layout, or data view
	 * 
	 * @param dragObj
	 * @return validate result
	 */
	private boolean handleValidateDrag( Object dragObj )
	{
		return dragObj != null
				&& ( handleValidatePalette( dragObj )
						|| handleValidateOutline( dragObj )
						|| handleValidateInsert( dragObj ) || handleValidateLibrary( dragObj ) );
	}