org.hypergraphdb.query

Class Nothing

java.lang.Object

org.hypergraphdb.query.Nothing

All Implemented Interfaces:

HGQueryCondition

public final class Nothing
extends Object
implements HGQueryCondition

This condition represents the negation of everything. It will yield an empty result set alone or in conjunction with any other condition.

Author:

Borislav Iordanov

Field Summary

Fields

Modifier and Type	Field and Description
static Nothing	Instance

Constructor Summary

Constructors

Constructor and Description
Nothing() this is required to ensure the class is a bean.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object x)
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

Instance

public static final Nothing Instance

Constructor Detail

Nothing

public Nothing()

this is required to ensure the class is a bean.

Method Detail

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object x)

Overrides:

equals in class Object