org.hypergraphdb.query
Class IncidentCondition

java.lang.Object
  org.hypergraphdb.query.IncidentCondition

All Implemented Interfaces:

HGAtomPredicate, HGQueryCondition

public class IncidentCondition
extends java.lang.Object
implements HGQueryCondition, HGAtomPredicate

The IncidentCondition specifies that a search result atom should be a member of the incidence set of a given atom. By itself the condition would yield a query that enumerates all links pointing to the specified atom.

Author:

Borislav Iordanov

Constructor Summary

IncidentCondition()

IncidentCondition(HGHandle target)

Method Summary

boolean	equals(java.lang.Object x)
HGHandle	getTarget()
int	hashCode()
boolean	satisfies(HyperGraph hg, HGHandle handle) Check whether a given Object satisfies this query condition.
void	setTarget(HGHandle target)
java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

IncidentCondition

public IncidentCondition()

IncidentCondition

public IncidentCondition(HGHandle target)

Method Detail

getTarget

public HGHandle getTarget()

setTarget

public void setTarget(HGHandle target)

satisfies

public boolean satisfies(HyperGraph hg,
                         HGHandle handle)

Description copied from interface: HGAtomPredicate

Check whether a given Object satisfies this query condition.

Specified by:

satisfies in interface HGAtomPredicate

Parameters:

hg - 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 java.lang.Object

equals

public boolean equals(java.lang.Object x)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object