xdi2.core.impl

Class AbstractGraph

java.lang.Object

xdi2.core.impl.AbstractGraph

All Implemented Interfaces:

Serializable, Comparable<Graph>, Graph

Direct Known Subclasses:

DummyGraph, JSONGraph, KeyValueGraph, MemoryGraph, WrappedGraph

public abstract class AbstractGraph
extends Object
implements Graph

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractGraph(GraphFactory graphFactory, String identifier)

Method Summary

Modifier and Type	Method and Description
void	beginTransaction() Starts a new transaction.
void	clear() Clears all data from the graph.
void	commitTransaction() Commits the changes made by the transaction.
int	compareTo(Graph other)
boolean	containsStatement(XDIStatement XDIstatement) Check if a statement exists in this graph.
boolean	equals(Object object)
long	getAllStatementCount() Returns the number of all statements in this graph.
ReadOnlyIterator<Statement>	getAllStatements() Gets all statements in this graph.
ContextNode	getDeepContextNode(XDIAddress contextNodeXDIAddress)
ContextNode	getDeepContextNode(XDIAddress contextNodeXDIAddress, boolean subgraph)
LiteralNode	getDeepLiteralNode(XDIAddress literalNodeXDIAddress)
LiteralNode	getDeepLiteralNode(XDIAddress literalNodeXDIAddress, boolean subgraph)
Node	getDeepNode(XDIAddress nodeXDIAddress)
Node	getDeepNode(XDIAddress nodeXDIAddress, boolean subgraph)
Relation	getDeepRelation(XDIAddress relativeContextNodeXDIAddress, XDIAddress XDIaddress)
Relation	getDeepRelation(XDIAddress relativeContextNodeXDIAddress, XDIAddress XDIaddress, XDIAddress targetXDIAddress)
ReadOnlyIterator<Relation>	getDeepRelations(XDIAddress relativeContextNodeXDIAddress, XDIAddress XDIaddress)
GraphFactory	getGraphFactory() Gets the graph factory that created this graph.
String	getIdentifier() Returns an optional identifier to distinguish graphs from one another.
ContextNode	getRootContextNode() Gets the local root context node of this graph.
Statement	getStatement(XDIStatement XDIstatement) Gets a statement in this graph.
int	hashCode()
boolean	isEmpty() Checks if the graph is empty.
void	rollbackTransaction() Rolls back the changes made by the transaction.
ContextNode	setDeepContextNode(XDIAddress contextNodeXDIAddress)
LiteralNode	setDeepLiteralNode(XDIAddress literalNodeXDIAddress)
Node	setDeepNode(XDIAddress nodeXDIAddress)
Relation	setDeepRelation(XDIAddress relativeContextNodeXDIAddress, XDIAddress XDIaddress, Node targetNode)
Relation	setDeepRelation(XDIAddress relativeContextNodeXDIAddress, XDIAddress XDIaddress, XDIAddress targetXDIAddress)
Statement	setStatement(XDIStatement XDIstatement) Sets a statement in this graph.
boolean	supportsTransactions() Check if this graph supports transactions.
String	toString()
String	toString(MimeType mimeType) Converts the graph to a string in the given MIME type.
String	toString(String format) Converts the graph to a string in the given serialization format.
String	toString(String format, Properties parameters) Converts the graph to a string in the given serialization format.

Methods inherited from class java.lang.Object

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

Methods inherited from interface xdi2.core.Graph

close, getRootContextNode

Constructor Detail

AbstractGraph

protected AbstractGraph(GraphFactory graphFactory,
                        String identifier)

Method Detail

getGraphFactory

public GraphFactory getGraphFactory()

Description copied from interface: Graph

Gets the graph factory that created this graph.

Specified by:

getGraphFactory in interface Graph

Returns:

The graph factory.

getIdentifier

public String getIdentifier()

Description copied from interface: Graph

Returns an optional identifier to distinguish graphs from one another.

Specified by:

getIdentifier in interface Graph

Returns:

The graph identifier.

getRootContextNode

public ContextNode getRootContextNode()

Description copied from interface: Graph

Gets the local root context node of this graph.

Specified by:

getRootContextNode in interface Graph

Returns:

The graph's local root context node.

clear

public void clear()

Description copied from interface: Graph

Clears all data from the graph. This is equivalent to calling getRootContextNode().clear();

Specified by:

clear in interface Graph

isEmpty

public boolean isEmpty()

Description copied from interface: Graph

Checks if the graph is empty. This is equivalent to calling getRootContextNode().isEmpty();

Specified by:

isEmpty in interface Graph

toString

public String toString(String format,
                       Properties parameters)

Description copied from interface: Graph

Converts the graph to a string in the given serialization format.

Specified by:

toString in interface Graph

Parameters:

format - The serialization format.

parameters - Parameters for the serialization.

toString

public String toString(String format)

Description copied from interface: Graph

Converts the graph to a string in the given serialization format.

Specified by:

toString in interface Graph

Parameters:

format - The serialization format.

toString

public String toString(MimeType mimeType)

Description copied from interface: Graph

Converts the graph to a string in the given MIME type.

Specified by:

toString in interface Graph

Parameters:

mimeType - The MIME type.

setDeepNode

public Node setDeepNode(XDIAddress nodeXDIAddress)

Specified by:

setDeepNode in interface Graph

getDeepNode

public Node getDeepNode(XDIAddress nodeXDIAddress,
                        boolean subgraph)

Specified by:

getDeepNode in interface Graph

getDeepNode

public Node getDeepNode(XDIAddress nodeXDIAddress)

Specified by:

getDeepNode in interface Graph

setDeepContextNode

public ContextNode setDeepContextNode(XDIAddress contextNodeXDIAddress)

Specified by:

setDeepContextNode in interface Graph

getDeepContextNode

public ContextNode getDeepContextNode(XDIAddress contextNodeXDIAddress,
                                      boolean subgraph)

Specified by:

getDeepContextNode in interface Graph

getDeepContextNode

public ContextNode getDeepContextNode(XDIAddress contextNodeXDIAddress)

Specified by:

getDeepContextNode in interface Graph

setDeepLiteralNode

public LiteralNode setDeepLiteralNode(XDIAddress literalNodeXDIAddress)

Specified by:

setDeepLiteralNode in interface Graph

getDeepLiteralNode

public LiteralNode getDeepLiteralNode(XDIAddress literalNodeXDIAddress,
                                      boolean subgraph)

Specified by:

getDeepLiteralNode in interface Graph

getDeepLiteralNode

public LiteralNode getDeepLiteralNode(XDIAddress literalNodeXDIAddress)

Specified by:

getDeepLiteralNode in interface Graph

setDeepRelation

public Relation setDeepRelation(XDIAddress relativeContextNodeXDIAddress,
                                XDIAddress XDIaddress,
                                XDIAddress targetXDIAddress)

Specified by:

setDeepRelation in interface Graph

setDeepRelation

public Relation setDeepRelation(XDIAddress relativeContextNodeXDIAddress,
                                XDIAddress XDIaddress,
                                Node targetNode)

Specified by:

setDeepRelation in interface Graph

getDeepRelation

public Relation getDeepRelation(XDIAddress relativeContextNodeXDIAddress,
                                XDIAddress XDIaddress,
                                XDIAddress targetXDIAddress)

Specified by:

getDeepRelation in interface Graph

getDeepRelation

public Relation getDeepRelation(XDIAddress relativeContextNodeXDIAddress,
                                XDIAddress XDIaddress)

Specified by:

getDeepRelation in interface Graph

getDeepRelations

public ReadOnlyIterator<Relation> getDeepRelations(XDIAddress relativeContextNodeXDIAddress,
                                                   XDIAddress XDIaddress)

Specified by:

getDeepRelations in interface Graph

setStatement

public Statement setStatement(XDIStatement XDIstatement)

Description copied from interface: Graph

Sets a statement in this graph.

Specified by:

setStatement in interface Graph

getStatement

public Statement getStatement(XDIStatement XDIstatement)

Description copied from interface: Graph

Gets a statement in this graph.

Specified by:

getStatement in interface Graph

containsStatement

public boolean containsStatement(XDIStatement XDIstatement)

Description copied from interface: Graph

Check if a statement exists in this graph.

Specified by:

containsStatement in interface Graph

getAllStatements

public ReadOnlyIterator<Statement> getAllStatements()

Description copied from interface: Graph

Gets all statements in this graph.

Specified by:

getAllStatements in interface Graph

Returns:

An iterator over statements.

getAllStatementCount

public long getAllStatementCount()

Description copied from interface: Graph

Returns the number of all statements in this graph.

Specified by:

getAllStatementCount in interface Graph

Returns:

The number of statements.

supportsTransactions

public boolean supportsTransactions()

Description copied from interface: Graph

Check if this graph supports transactions.

Specified by:

supportsTransactions in interface Graph

beginTransaction

public void beginTransaction()

Description copied from interface: Graph

Starts a new transaction.

Specified by:

beginTransaction in interface Graph

commitTransaction

public void commitTransaction()

Description copied from interface: Graph

Commits the changes made by the transaction.

Specified by:

commitTransaction in interface Graph

rollbackTransaction

public void rollbackTransaction()

Description copied from interface: Graph

Rolls back the changes made by the transaction.

Specified by:

rollbackTransaction in interface Graph

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(Graph other)

Specified by:

compareTo in interface Comparable<Graph>