Bug 182061 Data engine changes to support result set sharing
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
if ( this.isFirstRowPepared == false )
			this.prepareCurrentRow( );
		
		Object exprValue = boundColumnValueMap.get( exprName );
		if ( exprValue instanceof BirtException )
			throw (BirtException) exprValue;
		return exprValue;
	}
	
	/**
	 * @throws DataException
	 */
	private void prepareCurrentRow( ) throws DataException
	{
		
		int currRowIndex = this.odiResult.getCurrentResultIndex( );
		if ( lastRowIndex < currRowIndex )
		{
			lastRowIndex = currRowIndex;
			if( bindingColumnsEvalUtil == null )
			{
				this.bindingColumnsEvalUtil = new BindingColumnsEvalUtil( this.odiResult,
						this.scope,
						this.getRdSaveHelper( ),
						this.resultService.getAllBindingExprs( ),
						this.resultService.getAllAutoBindingExprs( ) );