Package com.google.gerrit.server.query.change

Class RegexTopicPredicate

java.lang.Object

com.google.gerrit.index.query.Predicate<ChangeData>

com.google.gerrit.index.query.OperatorPredicate<ChangeData>

com.google.gerrit.index.query.IndexPredicate<ChangeData>

com.google.gerrit.index.query.RegexPredicate<ChangeData>

com.google.gerrit.server.query.change.ChangeRegexPredicate

com.google.gerrit.server.query.change.RegexTopicPredicate

All Implemented Interfaces:

Matchable<ChangeData>

public class RegexTopicPredicate
extends ChangeRegexPredicate

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gerrit.index.query.Predicate

Predicate.Any<T>

Field Summary

Fields

Modifier and Type	Field	Description
protected final dk.brics.automaton.RunAutomaton	pattern

Fields inherited from class com.google.gerrit.index.query.OperatorPredicate

name, value

Constructor Summary

Constructors

Constructor	Description
RegexTopicPredicate(String re)

Method Summary

Modifier and Type	Method	Description
int	getCost()	Returns a cost estimate to run this predicate, higher figures cost more.
boolean	match(ChangeData object)	This method matches documents without calling an index subsystem.

Methods inherited from class com.google.gerrit.index.query.IndexPredicate

getField, getType

Methods inherited from class com.google.gerrit.index.query.OperatorPredicate

copy, equals, getOperator, getValue, hashCode, toString

Methods inherited from class com.google.gerrit.index.query.Predicate

and, and, any, asMatchable, estimateCost, getChild, getChildCount, getChildren, getFlattenedPredicateList, getLeafCount, getPredicateString, isLeaf, isMatchable, not, or, or, supportedForQueries

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.google.gerrit.index.query.Matchable

matchResult

Field Details

pattern

protected final dk.brics.automaton.RunAutomaton pattern

Constructor Details

RegexTopicPredicate

public RegexTopicPredicate(String re)

Method Details

match

public boolean match(ChangeData object)

Description copied from class: IndexPredicate

This method matches documents without calling an index subsystem. For primitive fields (e.g. integer, long) , the matching logic is consistent across this method and all known index implementations. For text fields (i.e. prefix and full-text) the semantics vary between this implementation and known index implementations:

Prefix: Lucene as well as IndexPredicate.match(Object) matches terms as true prefixes (prefix:foo -> `foo bar` matches, but `baz foo bar` does not match). The index implementation at Google tokenizes both the query and the indexed text and matches tokens individually (prefix:fo ba -> `baz foo bar` matches).

Full text: Lucene uses a PhraseQuery to search for terms in full text fields in-order. The index implementation at Google as well as IndexPredicate.match(Object) tokenizes both the query and the indexed text and matches tokens individually.

Specified by:

match in interface Matchable<ChangeData>

Overrides:

match in class IndexPredicate<ChangeData>

Returns:

true if the predicate matches the provided I.

getCost

public int getCost()

Description copied from interface: Matchable

Returns a cost estimate to run this predicate, higher figures cost more.

Specified by:

getCost in interface Matchable<ChangeData>

Overrides:

getCost in class IndexPredicate<ChangeData>