org.hypergraphdb

Class HGValueLink

java.lang.Object

org.hypergraphdb.HGPlainLink

org.hypergraphdb.HGValueLink

All Implemented Interfaces:

Iterable<HGHandle>, HGLink

public final class HGValueLink
extends HGPlainLink

HGValueLink is a HGLink that can hold an arbitrary object as payload. The object can be of any type and can be interpreted by the application, for instance, as a label where it will be usually a String or a weight, if it is a number. Note that the type of the stored atom will be the type of wrapped object, not HGValueLink.class. Thus, if you are wrapping a Java String as a link, for example, you would query with hg.type(String.class) rather than hg.type(HGValueLink.class).

Author:

Borislav Iordanov

Field Summary

Fields inherited from class org.hypergraphdb.HGPlainLink

outgoingSet

Constructor Summary

Constructors

Constructor and Description
HGValueLink()
HGValueLink(HGHandle... targets)
HGValueLink(Object value, HGHandle... targets)

Method Summary

Methods

Modifier and Type	Method and Description
Object	getValue() Return the underlying value.
void	setValue(Object value) Set the underlying value.
String	toString()

Methods inherited from class org.hypergraphdb.HGPlainLink

getArity, getTargetAt, iterator, notifyTargetHandleUpdate, notifyTargetRemoved, toStringHdlArr

Methods inherited from class java.lang.Object

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

Constructor Detail

HGValueLink

public HGValueLink()

HGValueLink

public HGValueLink(HGHandle... targets)

HGValueLink

public HGValueLink(Object value,
           HGHandle... targets)

Method Detail

setValue

public void setValue(Object value)

Set the underlying value.

getValue

public Object getValue()

Return the underlying value.

toString

public String toString()

Overrides:

toString in class HGPlainLink