QueryCanonicalizer (container-search 7.536.19 API)

java.lang.Object
- com.yahoo.prelude.query.QueryCanonicalizer

```
public class QueryCanonicalizer
extends Object
```
Query normalizer and sanity checker.

Author:

bratseth

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class QueryCanonicalizer.CanonicalizationResult

Field Summary

Fields
Modifier and Type Field Description

static String queryCanonicalization
The name of the operation performed by this, for use in search chain ordering

Constructor Summary

Constructors
Constructor Description

QueryCanonicalizer()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static String`	`canonicalize(Query query)`	Validates this query and carries out possible operations on this query which simplifies it without changing its semantics.
`static String`	`canonicalize(QueryTree queryTree)`	Canonicalizes this query, allowing any query tree size

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

- Field Detail
  - queryCanonicalization
```
public static final String queryCanonicalization
```
    The name of the operation performed by this, for use in search chain ordering
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - QueryCanonicalizer
```
public QueryCanonicalizer()
```
- Method Detail
  - canonicalize
```
public static String canonicalize(Query query)
```
    Validates this query and carries out possible operations on this query which simplifies it without changing its semantics.
    
    Returns:
    
    null if the query is valid, an error message if it is invalid
  - canonicalize
```
public static String canonicalize(QueryTree queryTree)
```
    Canonicalizes this query, allowing any query tree size
    
    Returns:
    
    null if the query is valid, an error message if it is invalid