QueryRewrite (container-search 7.519.16 API)

java.lang.Object
- com.yahoo.prelude.querytransform.QueryRewrite

public class QueryRewrite
extends Object

Author:: baldersheim

Constructor Summary

Constructors
Constructor Description

QueryRewrite()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`collapseSingleComposites(Query query)`	Collapses all single-child `CompositeItem`s into their parent item.
`static void`	`optimizeAndNot(Query query)`	Optimize multiple NotItems under and or by collapsing them in to one and leaving the positive ones behind in its place and moving itself with the original and as its positive item and the union of all the negative items of all the original NotItems as its negative items.
`static void`	`optimizeByRestrict(Query query)`	Optimizes the given query tree based on its `Model.getRestrict()` parameter, if any.
`static void`	`rewriteSddocname(Query query)`	Replaces and `SimpleIndexedItem` searching in the `Hit.SDDOCNAME_FIELD` with an item appropriate for the search node.

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

- Constructor Detail
  - QueryRewrite
```
public QueryRewrite()
```
- Method Detail
  - optimizeAndNot
```
public static void optimizeAndNot(Query query)
```
    Optimize multiple NotItems under and or by collapsing them in to one and leaving the positive ones behind in its place and moving itself with the original and as its positive item and the union of all the negative items of all the original NotItems as its negative items.
  - optimizeByRestrict
```
public static void optimizeByRestrict(Query query)
```
    Optimizes the given query tree based on its Model.getRestrict() parameter, if any.
  - collapseSingleComposites
```
public static void collapseSingleComposites(Query query)
```
    Collapses all single-child CompositeItems into their parent item.
  - rewriteSddocname
```
public static void rewriteSddocname(Query query)
```
    Replaces and SimpleIndexedItem searching in the Hit.SDDOCNAME_FIELD with an item appropriate for the search node.