org.hypergraphdb.query

Class TargetCondition

java.lang.Object

org.hypergraphdb.query.TargetCondition

All Implemented Interfaces:

HGAtomPredicate, HGQueryCondition

public class TargetCondition
extends Object
implements HGQueryCondition, HGAtomPredicate

A query condition that constraints the result set to atoms that are targets to a specific link.

Author:

Borislav Iordanov

Constructor Summary

Constructors

Constructor and Description
TargetCondition()
TargetCondition(HGHandle link)
TargetCondition(Ref<HGHandle> link)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object x)
HGHandle	getLink()
Ref<HGHandle>	getLinkReference()
int	hashCode()
boolean	satisfies(HyperGraph graph, HGHandle handle) Check whether a given Object satisfies this query condition.
void	setLink(HGHandle link)
void	setLinkReference(Ref<HGHandle> link)

Methods inherited from class java.lang.Object

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

Constructor Detail

TargetCondition

public TargetCondition()

TargetCondition

public TargetCondition(Ref<HGHandle> link)

TargetCondition

public TargetCondition(HGHandle link)

Method Detail

getLinkReference

public Ref<HGHandle> getLinkReference()

setLinkReference

public void setLinkReference(Ref<HGHandle> link)

getLink

public HGHandle getLink()

setLink

public void setLink(HGHandle link)

satisfies

public boolean satisfies(HyperGraph graph,
                HGHandle handle)

Description copied from interface: HGAtomPredicate

Check whether a given Object satisfies this query condition.

Specified by:

satisfies in interface HGAtomPredicate

Parameters:

graph - The HyperGraph instance.

handle - The atom on which to test the query condition.

Returns:

true if the passed in parameter satisfies the condition and false otherwise.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object x)

Overrides:

equals in class Object