org.hypergraphdb.query

Class AtomProjectionCondition

java.lang.Object

org.hypergraphdb.query.AtomProjectionCondition

All Implemented Interfaces:

HGAtomPredicate, HGQueryCondition

public class AtomProjectionCondition
extends Object
implements HGQueryCondition, HGAtomPredicate

An AtomProjectionCondition will yield all atoms that are projections along a certain dimension of a given base atom set. The base atom set is specified as a HGQueryCondition.

Author:

Borislav Iordanov

Constructor Summary

Constructors

Constructor and Description
AtomProjectionCondition()
AtomProjectionCondition(String[] dimensionPath, HGQueryCondition baseSetCondition)
AtomProjectionCondition(String dimensionPath, HGQueryCondition baseSetCondition)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object x)
HGQueryCondition	getBaseSetCondition()
String[]	getDimensionPath()
int	hashCode()
boolean	satisfies(HyperGraph graph, HGHandle handle) Check whether a given Object satisfies this query condition.
void	setBaseSetCondition(HGQueryCondition baseSetCondition)
void	setDimensionPath(String[] dimensionPath)

Methods inherited from class java.lang.Object

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

Constructor Detail

AtomProjectionCondition

public AtomProjectionCondition()

AtomProjectionCondition

public AtomProjectionCondition(String dimensionPath,
                       HGQueryCondition baseSetCondition)

AtomProjectionCondition

public AtomProjectionCondition(String[] dimensionPath,
                       HGQueryCondition baseSetCondition)

Method Detail

getDimensionPath

public String[] getDimensionPath()

getBaseSetCondition

public HGQueryCondition getBaseSetCondition()

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

setDimensionPath

public void setDimensionPath(String[] dimensionPath)

setBaseSetCondition

public void setBaseSetCondition(HGQueryCondition baseSetCondition)