Bug 187178 Remove Total.* from expression build
The Total java script object is no longer supported by BIRT. It should be removed from Expression builder.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/ExpressionTreeSupport.java
"||",
					Messages.getString( "ExpressionProvider.Operator.Or" )  
			}
	};
	private static final String TREE_ITEM_CONTEXT = Messages.getString( "ExpressionProvider.Category.Context" ); 
	private static final String TREE_ITEM_OPERATORS = Messages.getString( "ExpressionProvider.Category.Operators" ); 
	private static final String TREE_ITEM_BIRT_OBJECTS = Messages.getString( "ExpressionProvider.Category.BirtObjects" );  
	private static final String TREE_ITEM_DATASETS = Messages.getString( "ExpressionProvider.Category.DataSets" ); 
	private static final String TREE_ITEM_PARAMETERS = Messages.getString( "ExpressionProvider.Category.Parameters" ); 
	private static final String TREE_ITEM_NATIVE_OBJECTS = Messages.getString( "ExpressionProvider.Category.NativeObjects" ); 
	private static final String TREE_ITEM_LOGICAL = Messages.getString( "ExpressionProvider.Operators.Logical" ); 
	private static final String TREE_ITEM_COMPUTATIONAL = Messages.getString( "ExpressionProvider.Operators.Computational" ); 
	private static final String TREE_ITEM_COMPARISON = Messages.getString( "ExpressionProvider.Operators.Comparison" ); 
	private static final String TREE_ITEM_ASSIGNMENT = Messages.getString( "ExpressionProvider.Operators.Assignment" ); 	
	
	protected static final String ITEM_DATA_KEY_TOOLTIP = "TOOL_TIP"; 
	/**
	 * Text key of tree item data, this data is the text string to be inserted
	 * into the text area
	 */
	protected static final String ITEM_DATA_KEY_TEXT = "TEXT"; 
	protected static final String ITEM_DATA_KEY_ENABLED = "ENABLED"; 
	private static final String OBJECTS_TYPE_NATIVE = "native";
	private static final String OBJECTS_TYPE_BIRT = "birt";
	private SourceViewer expressionViewer;
	private Tree tree;
	private DropTarget dropTarget;
	private DropTargetAdapter dropTargetAdapter;
	/**
	 * public tree name constants used to be identified when a filter is added.