Bug 168177 [2.1.2][regression]DataException when preview attached report in Web Viewer.[0901]
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ServiceForQueryResults.java
this.queryDefn = queryDefn;
		this.exprManager = exprManager;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.IQueryService#getContext()
	 */
	public DataEngineContext getContext( )
	{
		return this.context;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.IServiceForQueryResults#getScope()
	 */
	public Scriptable getScope( )
	{
		return this.scope;
	}
	/*
	 * @see org.eclipse.birt.data.engine.impl.IServiceForQueryResults#getNestedLevel()
	 */
	public int getNestedLevel( )
	{
		return this.nestedLevel;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.IQueryService#getQueryDefn()
	 */