this.context = context;
	PreparedDummyQuery( IQueryDefinition queryDefn, Scriptable sharedScope )	{		assert queryDefn != null;				this.queryDefn = queryDefn;		this.sharedScope = sharedScope;		this.exprManager = new ExprManager( );		this.exprManager.addExpr( queryDefn.getResultSetExpressions( ), 0 );	}