xdi2.core.impl

Class AbstractRelation

java.lang.Object

xdi2.core.impl.AbstractRelation

All Implemented Interfaces:

Serializable, Comparable<Relation>, Relation

Direct Known Subclasses:

DummyRelation, JSONRelation, KeyValueRelation, MemoryRelation, WrappedRelation

public abstract class AbstractRelation
extends Object
implements Relation

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AbstractRelation(ContextNode contextNode)

Method Summary

Modifier and Type	Method and Description
int	compareTo(Relation other)
void	delete() Deletes this relation.
boolean	equals(Object object)
Node	follow() Follows the relation to the target node.
ContextNode	followContextNode() Follows the relation to the target context node.
LiteralNode	followLiteralNode() Follows the relation to the target literal node.
ContextNode	getContextNode() Every relation has a context node from which it originates.
Graph	getGraph() Get the graph of this relation.
Statement.RelationStatement	getStatement() Gets the statement that represents this relation.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface xdi2.core.Relation

getTargetXDIAddress, getXDIAddress

Constructor Detail

AbstractRelation

public AbstractRelation(ContextNode contextNode)

Method Detail

getGraph

public Graph getGraph()

Description copied from interface: Relation

Get the graph of this relation.

Specified by:

getGraph in interface Relation

Returns:

The graph of this relation.

getContextNode

public ContextNode getContextNode()

Description copied from interface: Relation

Every relation has a context node from which it originates.

Specified by:

getContextNode in interface Relation

Returns:

The context node of this relation.

delete

public void delete()

Description copied from interface: Relation

Deletes this relation.

Specified by:

delete in interface Relation

follow

public Node follow()

Description copied from interface: Relation

Follows the relation to the target node.

Specified by:

follow in interface Relation

Returns:

The target node of the relation.

followContextNode

public ContextNode followContextNode()

Description copied from interface: Relation

Follows the relation to the target context node.

Specified by:

followContextNode in interface Relation

Returns:

The target context node of the relation, or null.

followLiteralNode

public LiteralNode followLiteralNode()

Description copied from interface: Relation

Follows the relation to the target literal node.

Specified by:

followLiteralNode in interface Relation

Returns:

The target literal node of the relation, or null.

getStatement

public Statement.RelationStatement getStatement()

Description copied from interface: Relation

Gets the statement that represents this relation.

Specified by:

getStatement in interface Relation

Returns:

A statement.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object object)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(Relation other)

Specified by:

compareTo in interface Comparable<Relation>