Package com.yahoo.search.grouping.request

Interface ExpressionVisitor

public interface ExpressionVisitor

This interface defines the necessary callback to recursively visit all GroupingExpression objects in a GroupingOperation. It is used by the GroupingValidator to ensure that all referenced attributes are valid for the cluster being queried.

Author:

Simon Thoresen Hult

Method Summary

Modifier and Type	Method	Description
void	visitExpression(GroupingExpression exp)	This method is called for every GroupingExpression object in the targeted GroupingOperation.

Method Details

visitExpression

void visitExpression(GroupingExpression exp)

This method is called for every GroupingExpression object in the targeted GroupingOperation.

Parameters:

exp - the expression being visited.