Bug 153387 Database item can't be dragged and dropped onto editor field
Steps to reproduce: 1.Start up BIRT in Mac OS X; 2.File->New->Project; 3.File->New->Report Design; 4.In Data Explorer, create a New Data Source, and choose "Classic Models Inc. Sample DataBase", press "Next" and then press "finish"; 5.In Data Explorer, create a New Data Set, press "Next"; 6.In the popup window, expand the "CLASSICMODELS", select and drag a item onto the editor field at right side.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
if ( selection[0].getData( ) instanceof DbObject )
					{
						if ( ( (DbObject) selection[0].getData( ) ).getType( ) == DbObject.PROCEDURE_TYPE )
						{
							event.doit = false;
							return;
						}
					}
					else if ( selection[0].getData( ) instanceof ProcedureParameter )
					{
						event.doit = false;
						return;
					}
				}
				else if ( selection.length <= 0
						|| selection[0].getData( ) == null )
				{
					event.doit = false;
					return;
				}
			}
			public void dragSetData( DragSourceEvent event )
			{
				if ( TextTransfer.getInstance( )
						.isSupportedType( event.dataType ) )
				{
					populateEventData( event );
				}
			}
		} );