no.sesat.search.query.finder
Class ParentFinder

java.lang.Object
  no.sesat.commons.visitor.AbstractReflectionVisitor
      no.sesat.search.query.finder.ParentFinder

All Implemented Interfaces:

Serializable, no.sesat.commons.visitor.Visitor

public final class ParentFinder
extends no.sesat.commons.visitor.AbstractReflectionVisitor
implements Serializable

Visitor used to find a clause's parents. Clauses' do not keep references to their parents as they are immutable and can thus be reused within different trees.

Version:

$Id: ParentFinder.java 7225 2009-04-09 00:32:20Z ssmiweve $

See Also:

Serialized Form

Field Summary

Fields inherited from class no.sesat.commons.visitor.AbstractReflectionVisitor

VISIT_METHOD_IMPL

Constructor Summary

ParentFinder()

Method Summary

List<UnaryClause>	getAncestors(Clause root, Clause clause) Returns all parents, grandparents, great-grandparents, etc.
UnaryClause	getParent(Clause root, Clause child) Finds the first found direct parent.
List<UnaryClause>	getParents(Clause root, Clause child) Returns all direct parents.
static boolean	insideOf(List<UnaryClause> parents, TokenPredicate token)
protected void	visitImpl(BinaryClause clause)
protected void	visitImpl(LeafClause clause)
protected void	visitImpl(UnaryClause clause)

Methods inherited from class no.sesat.commons.visitor.AbstractReflectionVisitor

visit, visitImpl

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ParentFinder

public ParentFinder()

Method Detail

insideOf

public static boolean insideOf(List<UnaryClause> parents,
                               TokenPredicate token)

Parameters:

parents -

token -

Returns:

getAncestors

public List<UnaryClause> getAncestors(Clause root,
                                      Clause clause)

Returns all parents, grandparents, great-grandparents, etc.

Parameters:

root -

clause -

Returns:

getParents

public List<UnaryClause> getParents(Clause root,
                                    Clause child)

Returns all direct parents.

Parameters:

root -

child -

Returns:

getParent

public UnaryClause getParent(Clause root,
                             Clause child)

Finds the first found direct parent.

Parameters:

root -

child -

Returns:

visitImpl

protected void visitImpl(UnaryClause clause)

Parameters:

clause -

visitImpl

protected void visitImpl(BinaryClause clause)

Parameters:

clause -

visitImpl

protected void visitImpl(LeafClause clause)

Parameters:

clause -