Bug 312859 The list of operator for Chart filter does not provide 30 visible items
chart/org.eclipse.birt.chart.reportitem.ui/src/org/eclipse/birt/chart/reportitem/ui/dialogs/ChartCubeFilterConditionBuilder.java
public void setReportElement( ReportElementHandle reportItem )
	{
		currentItem = reportItem;
	}
	/**
	 * 
	 */
	public void setBindingParams( ParamBindingHandle[] params )
	{
		this.bindingParams = params;
	}
	static
	{
		IChoiceSet chset = ChoiceSetFactory.getStructChoiceSet( FilterCondition.FILTER_COND_STRUCT,
				FilterCondition.OPERATOR_MEMBER );
		IChoice[] chs = chset.getChoices( new AlphabeticallyComparator( ) );
		OPERATOR = new String[chs.length][2];
		for ( int i = 0; i < chs.length; i++ )
		{
			OPERATOR[i][0] = chs[i].getDisplayName( );
			OPERATOR[i][1] = chs[i].getName( );
		}
	}
	/**
	 * Returns the operator value by its display name.
	 *