ToolBox.QueryVisitor (container-search 7.527.20 API)

java.lang.Object
- com.yahoo.prelude.query.ToolBox.QueryVisitor

Enclosing class:: ToolBox

public abstract static class ToolBox.QueryVisitor
extends Object

Constructor Summary

Constructors
Constructor Description

QueryVisitor()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract void`	`onExit()`	Invoked when all sub-items have been visited, or immediately after visit() if there are no sub-items or visit() returned false.
`abstract boolean`	`visit(Item item)`	Called for each item in the query tree given to `ToolBox.visit(QueryVisitor, Item)`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - QueryVisitor
```
public QueryVisitor()
```
- Method Detail
  - visit
```
public abstract boolean visit(Item item)
```
    Called for each item in the query tree given to ToolBox.visit(QueryVisitor, Item). Return true to visit the sub-items of the given item, return false to ignore the sub-items.
    
    Parameters:
    
    item - each item in the query tree
    
    Returns:
    
    whether or not to visit the sub-items of the argument item (and then invoke the onExit() method)
  - onExit
```
public abstract void onExit()
```
    Invoked when all sub-items have been visited, or immediately after visit() if there are no sub-items or visit() returned false.