xdi2.core.impl.json

Class JSONContextNode

java.lang.Object

xdi2.core.impl.AbstractNode

xdi2.core.impl.AbstractContextNode

xdi2.core.impl.json.JSONContextNode

All Implemented Interfaces:

Serializable, Comparable<ContextNode>, ContextNode, Node

public class JSONContextNode
extends AbstractContextNode
implements ContextNode

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
void	clear() Clears the context node.
void	delContextNode(XDIArc XDIarc) Deletes the context node with a given arc.
void	delLiteralNode() Deletes the literal from this context node.
void	delRelation(XDIAddress XDIaddress, XDIAddress targetXDIAddress) Deletes the relation with a given arc from this context node.
ContextNode	getContextNode(XDIArc XDIarc, boolean subgraph) Returns the context node with a given arc.
ReadOnlyIterator<ContextNode>	getContextNodes() Returns the context nodes under this context node.
ContextNode	getDeepContextNode(XDIAddress relativeContextNodeXDIAddress, boolean subgraph)
ReadOnlyIterator<Relation>	getIncomingRelations() Returns the incoming relations of this context node.
LiteralNode	getLiteralNode() Returns the literal of this context node.
ReadOnlyIterator<Relation>	getRelations() Returns the relations of this context node.
XDIAddress	getXDIAddress() Gets the address of this node.
XDIArc	getXDIArc() Every node has an associated arc.
ContextNode	setContextNode(XDIArc XDIarc) Creates a new context node and adds it to this context node, or returns an existing context node.
LiteralNode	setLiteralNode(Object literalData) Creates a new literal and adds it to this context node, or returns an existing literal.
Relation	setRelation(XDIAddress XDIaddress, Node targetNode) Creates a new relation and adds it to this context node, or returns an existing relation.

Methods inherited from class xdi2.core.impl.AbstractContextNode

compareTo, containsContextNode, containsContextNodes, containsIncomingRelations, containsIncomingRelations, containsLiteralBoolean, containsLiteralNode, containsLiteralNode, containsLiteralNumber, containsLiteralString, containsRelation, containsRelations, containsRelations, containsStatement, delContextNodeDelAllIncomingRelations, delContextNodeDelAllInnerRoots, delContextNodeDelAllRelations, delContextNodes, delete, delIncomingRelations, delRelationDelInnerRoot, delRelations, delRelations, equals, getAllContextNodeCount, getAllContextNodes, getAllIncomingRelations, getAllLeafContextNodes, getAllLiteralCount, getAllLiteralNodes, getAllRelationCount, getAllRelations, getAllStatementCount, getAllStatements, getContextNode, getContextNodeCount, getDeepContextNode, getDeepLiteralNode, getDeepLiteralNode, getDeepNode, getDeepNode, getDeepRelation, getDeepRelation, getDeepRelations, getGraph, getIncomingRelations, getLiteralBoolean, getLiteralData, getLiteralDataBoolean, getLiteralDataNumber, getLiteralDataString, getLiteralNode, getLiteralNumber, getLiteralString, getRelation, getRelation, getRelationCount, getRelationCount, getRelations, getStatement, getStatement, hashCode, isEmpty, isLeafContextNode, isRootContextNode, setContextNodeCheckValid, setContextNodeSetInnerRoot, setDeepContextNode, setDeepLiteralNode, setDeepNode, setDeepRelation, setDeepRelation, setLiteralBoolean, setLiteralCheckValid, setLiteralNumber, setLiteralString, setRelation, setRelationCheckValid, setRelationSetTargetNode, setStatement, toString

Methods inherited from class xdi2.core.impl.AbstractNode

getContextNode, getContextNode

Methods inherited from class java.lang.Object

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

Methods inherited from interface xdi2.core.ContextNode

containsContextNode, containsContextNodes, containsIncomingRelations, containsIncomingRelations, containsLiteralBoolean, containsLiteralNode, containsLiteralNode, containsLiteralNumber, containsLiteralString, containsRelation, containsRelations, containsRelations, containsStatement, delContextNodes, delIncomingRelations, delRelations, delRelations, getAllContextNodeCount, getAllContextNodes, getAllIncomingRelations, getAllLeafContextNodes, getAllLiteralCount, getAllLiteralNodes, getAllRelationCount, getAllRelations, getAllStatementCount, getAllStatements, getContextNode, getContextNodeCount, getDeepContextNode, getDeepLiteralNode, getDeepLiteralNode, getDeepNode, getDeepNode, getDeepRelation, getDeepRelation, getDeepRelations, getIncomingRelations, getLiteralBoolean, getLiteralData, getLiteralDataBoolean, getLiteralDataNumber, getLiteralDataString, getLiteralNode, getLiteralNumber, getLiteralString, getRelation, getRelation, getRelationCount, getRelationCount, getRelations, getStatement, getStatement, isEmpty, isLeafContextNode, isRootContextNode, setDeepContextNode, setDeepLiteralNode, setDeepNode, setDeepRelation, setDeepRelation, setLiteralBoolean, setLiteralNumber, setLiteralString, setRelation, setStatement

Methods inherited from interface xdi2.core.Node

delete, getContextNode, getContextNode, getGraph

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

clear

public void clear()

Description copied from interface: ContextNode

Clears the context node. This is equivalent to calling delContextNodes(), delRelations() and delLiteralNode().

Specified by:

clear in interface ContextNode

Overrides:

clear in class AbstractContextNode

getXDIArc

public XDIArc getXDIArc()

Description copied from interface: Node

Every node has an associated arc. This returns null for the root context node.

Specified by:

getXDIArc in interface Node

Returns:

The arc associated with this node.

getXDIAddress

public XDIAddress getXDIAddress()

Description copied from interface: Node

Gets the address of this node. This returns the empty string for the root context node.

Specified by:

getXDIAddress in interface Node

Overrides:

getXDIAddress in class AbstractNode

Returns:

The address of this node.

setContextNode

public ContextNode setContextNode(XDIArc XDIarc)

Description copied from interface: ContextNode

Creates a new context node and adds it to this context node, or returns an existing context node.

Specified by:

setContextNode in interface ContextNode

Parameters:

XDIarc - The arc of the new or existing context node.

Returns:

The newly created or existing context node.

getContextNode

public ContextNode getContextNode(XDIArc XDIarc,
                                  boolean subgraph)

Description copied from interface: ContextNode

Returns the context node with a given arc.

Specified by:

getContextNode in interface ContextNode

Overrides:

getContextNode in class AbstractContextNode

Parameters:

XDIarc - The arc of the context node.

subgraph - This is simply a hint to the implementation whether child context nodes will subsequently be requested. Implementations may or may not actually use this parameter.

Returns:

The context node with the given arc, or null.

getDeepContextNode

public ContextNode getDeepContextNode(XDIAddress relativeContextNodeXDIAddress,
                                      boolean subgraph)

Specified by:

getDeepContextNode in interface ContextNode

Overrides:

getDeepContextNode in class AbstractContextNode

getContextNodes

public ReadOnlyIterator<ContextNode> getContextNodes()

Description copied from interface: ContextNode

Returns the context nodes under this context node.

Specified by:

getContextNodes in interface ContextNode

Returns:

An iterator over context nodes.

delContextNode

public void delContextNode(XDIArc XDIarc)

Description copied from interface: ContextNode

Deletes the context node with a given arc.

Specified by:

delContextNode in interface ContextNode

Parameters:

XDIarc - The arc of the context node.

setRelation

public Relation setRelation(XDIAddress XDIaddress,
                            Node targetNode)

Description copied from interface: ContextNode

Creates a new relation and adds it to this context node, or returns an existing relation.

Specified by:

setRelation in interface ContextNode

Parameters:

XDIaddress - The address of the relation.

targetNode - The target node of the relation.

Returns:

The newly created or existing relation.

getRelations

public ReadOnlyIterator<Relation> getRelations()

Description copied from interface: ContextNode

Returns the relations of this context node.

Specified by:

getRelations in interface ContextNode

Returns:

An iterator over relations.

getIncomingRelations

public ReadOnlyIterator<Relation> getIncomingRelations()

Description copied from interface: ContextNode

Returns the incoming relations of this context node.

Specified by:

getIncomingRelations in interface ContextNode

Overrides:

getIncomingRelations in class AbstractContextNode

Returns:

An iterator over relations.

delRelation

public void delRelation(XDIAddress XDIaddress,
                        XDIAddress targetXDIAddress)

Description copied from interface: ContextNode

Deletes the relation with a given arc from this context node.

Specified by:

delRelation in interface ContextNode

Parameters:

XDIaddress - The address of the relation.

targetXDIAddress - The target node address of the relation.

setLiteralNode

public LiteralNode setLiteralNode(Object literalData)

Description copied from interface: ContextNode

Creates a new literal and adds it to this context node, or returns an existing literal.

Specified by:

setLiteralNode in interface ContextNode

Parameters:

literalData - The literal data associated with the literal.

Returns:

The newly created or existing literal.

getLiteralNode

public LiteralNode getLiteralNode()

Description copied from interface: ContextNode

Returns the literal of this context node.

Specified by:

getLiteralNode in interface ContextNode

Returns:

The literal.

delLiteralNode

public void delLiteralNode()

Description copied from interface: ContextNode

Deletes the literal from this context node.

Specified by:

delLiteralNode in interface ContextNode