this.dataEngine = dataEngine; this.modelAdaptor = modelAdaptor; this.moduleHandle = moduleHandle;
this( dataEngine, modelAdaptor, moduleHandle, true );
	QueryExecutionHelper( DataEngine dataEngine, IModelAdapter modelAdaptor,			ModuleHandle moduleHandle )	{		this.dataEngine = dataEngine;		this.modelAdaptor = modelAdaptor;		this.moduleHandle = moduleHandle;	}