Bug 322347 Refactor data set editor pages' codes[29949]
Build Identifier: 20100810 Refactor data set editor pages' codes. Reproducible: Always
UI/org.eclipse.birt.report.designer.ui.data/src/org/eclipse/birt/report/designer/data/ui/dataset/ResultSetColumnPage.java
else
			{
				this.columnName = EMPTY_STRING;
				this.alias = EMPTY_STRING;
				this.displayName = EMPTY_STRING;
				this.displayNameKey = EMPTY_STRING;
				this.dataType = -1;
			}
		}
		private String resolveNull( String value )
		{
			return value == null ? EMPTY_STRING : value.trim( );
		}
		
		protected void rollback( )
		{
			
		}
		protected IStatus validateSemantics( Object structureOrHandle )
		{
			return validateSyntax( structureOrHandle );
		}
		protected IStatus validateSyntax( Object structureOrHandle )
		{
			if ( columnName == null || columnName.trim( ).length( ) == 0 )
			{
				return getMiscStatus( IStatus.ERROR,
						Messages.getString( "ResultSetColumnPage.inputDialog.warning.emptyColumnName" ) ); 
			}
			else if ( columnName.equals( alias ) )