xdi2.core.impl.keyvalue

Class KeyValueContextNode

java.lang.Object

xdi2.core.impl.AbstractNode

xdi2.core.impl.AbstractContextNode

xdi2.core.impl.keyvalue.KeyValueContextNode

All Implemented Interfaces:

Serializable, Comparable<ContextNode>, ContextNode, Node

public class KeyValueContextNode
extends AbstractContextNode
implements ContextNode

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
KeyValueContextNode(KeyValueGraph graph, KeyValueContextNode contextNode, KeyValueStore keyValueStore, String key, XDIArc XDIarc)

Method Summary

Modifier and Type	Method and Description
void	clear() Clears the context node.
boolean	containsContextNode(XDIArc XDIarc) Checks if a context node with a given arc exists under this context node.
boolean	containsContextNodes() Checks if this context node has one or more context nodes.
boolean	containsLiteralNode() Checks if this context node has a literal.
boolean	containsRelation(XDIAddress XDIaddress, XDIAddress targetXDIAddress) Checks if a relation with a given arc and target node address exists in this context node.
boolean	containsRelations() Checks if this context node has one or more relations.
boolean	containsRelations(XDIAddress XDIaddress) Checks if relations with a given arc exist in this context node.
void	delContextNode(XDIArc XDIarc) Deletes the context node with a given arc.
void	delContextNodes() Deletes all context nodes from this context node.
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.
void	delRelations() Deletes all relations from this context node.
void	delRelations(XDIAddress XDIaddress) Deletes the relations with a given address from this context node.
ContextNode	getContextNode(XDIArc XDIarc, boolean subgraph) Returns the context node with a given arc.
long	getContextNodeCount() Returns the number of context nodes under this context node.
ReadOnlyIterator<ContextNode>	getContextNodes() Returns the context nodes under this context node.
LiteralNode	getLiteralNode() Returns the literal of this context node.
Relation	getRelation(XDIAddress XDIaddress) Returns a relation at this context node.
Relation	getRelation(XDIAddress XDIaddress, XDIAddress targetXDIAddress) Returns a relation at this context node.
long	getRelationCount() Returns the number of relations of this context node.
long	getRelationCount(XDIAddress XDIaddress) Returns the number of relations of this context node.
ReadOnlyIterator<Relation>	getRelations() Returns the relations of this context node.
ReadOnlyIterator<Relation>	getRelations(XDIAddress XDIaddress) Returns relations at this context 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, containsIncomingRelations, containsIncomingRelations, containsLiteralBoolean, containsLiteralNode, containsLiteralNumber, containsLiteralString, containsStatement, delContextNodeDelAllIncomingRelations, delContextNodeDelAllInnerRoots, delContextNodeDelAllRelations, delete, delIncomingRelations, delRelationDelInnerRoot, equals, getAllContextNodeCount, getAllContextNodes, getAllIncomingRelations, getAllLeafContextNodes, getAllLiteralCount, getAllLiteralNodes, getAllRelationCount, getAllRelations, getAllStatementCount, getAllStatements, getContextNode, getDeepContextNode, getDeepContextNode, getDeepLiteralNode, getDeepLiteralNode, getDeepNode, getDeepNode, getDeepRelation, getDeepRelation, getDeepRelations, getGraph, getIncomingRelations, getIncomingRelations, getLiteralBoolean, getLiteralData, getLiteralDataBoolean, getLiteralDataNumber, getLiteralDataString, getLiteralNode, getLiteralNumber, getLiteralString, 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, getXDIAddress

Methods inherited from class java.lang.Object

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

Methods inherited from interface xdi2.core.ContextNode

containsIncomingRelations, containsIncomingRelations, containsLiteralBoolean, containsLiteralNode, containsLiteralNumber, containsLiteralString, containsStatement, delIncomingRelations, getAllContextNodeCount, getAllContextNodes, getAllIncomingRelations, getAllLeafContextNodes, getAllLiteralCount, getAllLiteralNodes, getAllRelationCount, getAllRelations, getAllStatementCount, getAllStatements, getContextNode, getDeepContextNode, getDeepContextNode, getDeepLiteralNode, getDeepLiteralNode, getDeepNode, getDeepNode, getDeepRelation, getDeepRelation, getDeepRelations, getIncomingRelations, getIncomingRelations, getLiteralBoolean, getLiteralData, getLiteralDataBoolean, getLiteralDataNumber, getLiteralDataString, getLiteralNode, getLiteralNumber, getLiteralString, 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, getXDIAddress

Methods inherited from interface java.lang.Comparable

compareTo

Constructor Detail

KeyValueContextNode

public KeyValueContextNode(KeyValueGraph graph,
                           KeyValueContextNode contextNode,
                           KeyValueStore keyValueStore,
                           String key,
                           XDIArc XDIarc)

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.

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.

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.

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.

containsContextNode

public boolean containsContextNode(XDIArc XDIarc)

Description copied from interface: ContextNode

Checks if a context node with a given arc exists under this context node.

Specified by:

containsContextNode in interface ContextNode

Overrides:

containsContextNode in class AbstractContextNode

Parameters:

XDIarc - The arc to look for.

Returns:

True if this context node has a context node with the given arc.

containsContextNodes

public boolean containsContextNodes()

Description copied from interface: ContextNode

Checks if this context node has one or more context nodes.

Specified by:

containsContextNodes in interface ContextNode

Overrides:

containsContextNodes in class AbstractContextNode

Returns:

True if this context node has 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.

delContextNodes

public void delContextNodes()

Description copied from interface: ContextNode

Deletes all context nodes from this context node.

Specified by:

delContextNodes in interface ContextNode

Overrides:

delContextNodes in class AbstractContextNode

getContextNodeCount

public long getContextNodeCount()

Description copied from interface: ContextNode

Returns the number of context nodes under this context node.

Specified by:

getContextNodeCount in interface ContextNode

Overrides:

getContextNodeCount in class AbstractContextNode

Returns:

The number of context nodes.

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.

getRelation

public Relation getRelation(XDIAddress XDIaddress,
                            XDIAddress targetXDIAddress)

Description copied from interface: ContextNode

Returns a relation at this context node.

Specified by:

getRelation in interface ContextNode

Overrides:

getRelation in class AbstractContextNode

Parameters:

XDIaddress - The address of the relation.

targetXDIAddress - The target node address of the relation.

Returns:

The relation with the given arc, or null.

getRelation

public Relation getRelation(XDIAddress XDIaddress)

Description copied from interface: ContextNode

Returns a relation at this context node.

Specified by:

getRelation in interface ContextNode

Overrides:

getRelation in class AbstractContextNode

Parameters:

XDIaddress - The address of the relation.

Returns:

The relation with the given address, or null.

getRelations

public ReadOnlyIterator<Relation> getRelations(XDIAddress XDIaddress)

Description copied from interface: ContextNode

Returns relations at this context node.

Specified by:

getRelations in interface ContextNode

Overrides:

getRelations in class AbstractContextNode

Parameters:

XDIaddress - The address of the relations.

Returns:

An iterator over relations with the given address, or null.

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.

containsRelation

public boolean containsRelation(XDIAddress XDIaddress,
                                XDIAddress targetXDIAddress)

Description copied from interface: ContextNode

Checks if a relation with a given arc and target node address exists in this context node.

Specified by:

containsRelation in interface ContextNode

Overrides:

containsRelation in class AbstractContextNode

Parameters:

XDIaddress - The address of the relations.

targetXDIAddress - The target node address of the relation.

Returns:

True if this context node has a relation with the given address and target node address.

containsRelations

public boolean containsRelations(XDIAddress XDIaddress)

Description copied from interface: ContextNode

Checks if relations with a given arc exist in this context node.

Specified by:

containsRelations in interface ContextNode

Overrides:

containsRelations in class AbstractContextNode

Parameters:

XDIaddress - The address of the relations.

Returns:

True if this context node has relations with the given arc.

containsRelations

public boolean containsRelations()

Description copied from interface: ContextNode

Checks if this context node has one or more relations.

Specified by:

containsRelations in interface ContextNode

Overrides:

containsRelations in class AbstractContextNode

Returns:

True if this context node has 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.

delRelations

public void delRelations(XDIAddress XDIaddress)

Description copied from interface: ContextNode

Deletes the relations with a given address from this context node.

Specified by:

delRelations in interface ContextNode

Overrides:

delRelations in class AbstractContextNode

Parameters:

XDIaddress - The address of the relations.

delRelations

public void delRelations()

Description copied from interface: ContextNode

Deletes all relations from this context node.

Specified by:

delRelations in interface ContextNode

Overrides:

delRelations in class AbstractContextNode

getRelationCount

public long getRelationCount()

Description copied from interface: ContextNode

Returns the number of relations of this context node.

Specified by:

getRelationCount in interface ContextNode

Overrides:

getRelationCount in class AbstractContextNode

Returns:

The number of relations.

getRelationCount

public long getRelationCount(XDIAddress XDIaddress)

Description copied from interface: ContextNode

Returns the number of relations of this context node.

Specified by:

getRelationCount in interface ContextNode

Overrides:

getRelationCount in class AbstractContextNode

Parameters:

XDIaddress - The address of the relations.

Returns:

The number of relations.

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.

containsLiteralNode

public boolean containsLiteralNode()

Description copied from interface: ContextNode

Checks if this context node has a literal.

Specified by:

containsLiteralNode in interface ContextNode

Overrides:

containsLiteralNode in class AbstractContextNode

Returns:

True if this context node has a literal.

delLiteralNode

public void delLiteralNode()

Description copied from interface: ContextNode

Deletes the literal from this context node.

Specified by:

delLiteralNode in interface ContextNode