Bug 131258 NewOdaDataSet is created when drop dataset from data explorer into layout in library
Details: NewOdaDataSet is created when drop dataset from data explorer into layout in library Setp: 1.New a library 2.Create a datasource and dataset 3.Drop dataset from Actual result: A new dataset named NewOdaDataSet is created. Exception result: The dataset is unnecessary to be created
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/palette/BasePaletteFactory.java
else if ( IReportElementConstants.AUTOTEXT_AUTHOR_PAGE_DATE.equalsIgnoreCase( template )
				|| IReportElementConstants.AUTOTEXT_CONFIDENTIAL_PAGE.equalsIgnoreCase( template )
				|| IReportElementConstants.REPORT_ELEMENT_GRID.equalsIgnoreCase( template ) )
		{
			preHandle = new GridToolExtends( );
		}
		else if ( IReportElementConstants.REPORT_ELEMENT_LABEL.equalsIgnoreCase( template ) )
		{
			preHandle = new LabelToolExtends( );
		}
		else if ( IReportElementConstants.REPORT_ELEMENT_DATA.equalsIgnoreCase( template ) )
		{
			preHandle = new DataToolExtends( );
		}
		else if ( IReportElementConstants.REPORT_ELEMENT_LIST.equalsIgnoreCase( template ) )
		{
			preHandle = new ListToolExtends( );
		}
		else if ( ( template ).startsWith( IReportElementConstants.REPORT_ELEMENT_EXTENDED ) )
		{
			String extensionName = template.substring( IReportElementConstants.REPORT_ELEMENT_EXTENDED.length( ) );
			preHandle = new ExtendedElementToolExtends( extensionName );
		}
		if ( preHandle == null )
		{
			throw new Error( "Don't find the AbstractToolHandleExtends" ); 
		}
		return preHandle;
	}
}