Bug 132515 Expression like "Toltal.rank(Tolta.ave(row[a]),ture,Null,1)" is return an error
Description: Add an expression like "Toltal.rank(Tolta.ave(row[a]),ture,Null,1)" is return an error.The nesting "Toltal" seem not to be work. Step to reproduce: 1.new a datasource and dataset 2.drag the dataset to layout veiw for a table 3.set a group on the table 4.Insert a data into the group header with the expression e.g. "Toltal.rank(Tolta.ave(row[a]),ture,Null,1)" Actual result: An error was thrown out Expected result: It should work correctly in order to support some requirments
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/transform/group/GroupInstanceFilter.java
import org.eclipse.birt.core.exception.BirtException;
import org.eclipse.birt.data.engine.api.IBaseExpression;
import org.eclipse.birt.data.engine.api.IFilterDefinition;
import org.eclipse.birt.data.engine.api.IScriptExpression;
import org.eclipse.birt.data.engine.core.DataException;
import org.eclipse.birt.data.engine.executor.transform.FilterUtil;
import org.eclipse.birt.data.engine.executor.transform.IExpressionProcessor;
import org.eclipse.birt.data.engine.executor.transform.OrderingInfo;
import org.eclipse.birt.data.engine.executor.transform.ResultSetPopulator;
import org.eclipse.birt.data.engine.i18n.ResourceConstants;
import org.eclipse.birt.data.engine.script.FilterPassController;
import org.eclipse.birt.data.engine.script.ScriptEvalUtil;
import org.mozilla.javascript.Context;
/**
 * The class which is used to do group instance filterings.
 */
public class GroupInstanceFilter
{
	private ResultSetPopulator populator;
	private FilterPassController filterPass = new FilterPassController( );
	private GroupProcessorManager groupProcessor;
	GroupInstanceFilter( GroupProcessorManager gp )
	{
		this.populator = gp.getResultSetPopulator( );
		this.groupProcessor = gp;
	}
	/**
	 * Do group filtering job.
	 * 
	 * @param cx