AutomatonQuery (The Adobe AEM Quickstart and Web Application. 6.6.0)

java.lang.Object
- org.apache.lucene.search.Query
- - org.apache.lucene.search.MultiTermQuery
  - - org.apache.lucene.search.AutomatonQuery

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

RegexpQuery, WildcardQuery
```
public class AutomatonQuery
extends MultiTermQuery
```
A Query that will match terms against a finite-state machine.
This query will match documents that contain terms accepted by a given finite-state machine. The automaton can be constructed with the org.apache.lucene.util.automaton API. Alternatively, it can be created from a regular expression with RegexpQuery or from the standard Lucene wildcard syntax with WildcardQuery.

When the query is executed, it will create an equivalent DFA of the finite-state machine, and will enumerate the term dictionary in an intelligent way to reduce the number of comparisons. For example: the regular expression of [dl]og? will make approximately four comparisons: do, dog, lo, and log.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.lucene.search.MultiTermQuery
  MultiTermQuery.ConstantScoreAutoRewrite, MultiTermQuery.RewriteMethod, MultiTermQuery.TopTermsBoostOnlyBooleanQueryRewrite, MultiTermQuery.TopTermsScoringBooleanQueryRewrite

Field Summary
- Fields inherited from class org.apache.lucene.search.MultiTermQuery
  CONSTANT_SCORE_AUTO_REWRITE_DEFAULT, CONSTANT_SCORE_BOOLEAN_QUERY_REWRITE, CONSTANT_SCORE_FILTER_REWRITE, SCORING_BOOLEAN_QUERY_REWRITE

Constructor Summary

Constructors
Constructor Description

AutomatonQuery(Term term, Automaton automaton)
Create a new AutomatonQuery from an Automaton.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object obj)`
`Automaton`	`getAutomaton()`	Returns the automaton used to create this query
`int`	`hashCode()`
`java.lang.String`	`toString(java.lang.String field)`	Prints a query to a string, with `field` assumed to be the default field and omitted.

Methods inherited from class org.apache.lucene.search.MultiTermQuery
getField, getRewriteMethod, rewrite, setRewriteMethod

Methods inherited from class org.apache.lucene.search.Query
clone, createWeight, extractTerms, getBoost, setBoost, toString

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - AutomatonQuery
```
public AutomatonQuery(Term term,
                      Automaton automaton)
```
    Create a new AutomatonQuery from an Automaton.
    
    Parameters:
    
    term - Term containing field and possibly some pattern structure. The term text is ignored.
    
    automaton - Automaton to run, terms that are accepted are considered a match.
- Method Detail
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class MultiTermQuery
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class MultiTermQuery
  - toString
```
public java.lang.String toString(java.lang.String field)
```
    Description copied from class: Query
    
    Prints a query to a string, with field assumed to be the default field and omitted.
    
    Specified by:
    
    toString in class Query
  - getAutomaton
```
public Automaton getAutomaton()
```
    Returns the automaton used to create this query