org.openanzo.client
Class NotificationNamedGraphProxy

java.lang.Object
  org.openanzo.client.NotificationNamedGraphProxy

All Implemented Interfaces:

INamedGraph, IProxyGraph

public class NotificationNamedGraphProxy
extends java.lang.Object
implements IProxyGraph, INamedGraph

Graph that contains a single transaction that contains statements whose changes were passed to client over notification event. All operations go into the transaction before they are applied to a parent graph. All calls to find contain the results of the parentGraph overlaid with the contents of the transaction.

Author:

Matthew Roy ( mroy@cambridgesemantics.com )

Constructor Summary

NotificationNamedGraphProxy(INamedGraph baseGraph, boolean isMetadataGraph, DatasetService datasetService)
Create new NotificationNamedGraphProxy for baseGraph with given ITransactionQueueManager

NotificationNamedGraphProxy(INamedGraph baseGraph, org.openrdf.model.URI namedGraphUri, boolean isMetadataGraph, DatasetService datasetService)
Create new NotificationNamedGraphProxy for baseGraph with given uri

Method Summary

void	add(info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement> statements) Add a set of statements from graph
void	add(org.openrdf.model.Resource subj, org.openrdf.model.URI pred, org.openrdf.model.Value obj) Add a new statement with given subj,pred,obj
void	add(org.openrdf.model.Statement... statements) Add one or more statements to graph
void	clear() Delete all statements in graph
void	close() Close the graph.
boolean	contains(org.openrdf.model.Resource s, org.openrdf.model.URI p, org.openrdf.model.Value o) Return true if the graph contains at least 1 statement that matches the pattern of subj,prop,obj
boolean	contains(org.openrdf.model.Statement s) Return true if the graph contains at least 1 statement that matches the statement provided
void	delete(info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement> statements) Delete a set of statements from graph
void	delete(org.openrdf.model.Resource subj, org.openrdf.model.URI pred, org.openrdf.model.Value obj) Delete a statement from graph
void	delete(org.openrdf.model.Statement... statements) Delete a set of statements from graph
info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement>	find(org.openrdf.model.Resource subj, org.openrdf.model.URI prop, org.openrdf.model.Value obj) Search parent graph, and then overlay contents of notification transaction
INamedGraphEventManager	getEventManager() Return INamedGraphEventManager for this graph
org.openrdf.model.URI	getNamedGraphUri() Get the URI of parent graph
INamedGraph	getParentGraph() Get the graph to which this proxy is proxing information.
info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement>	getStatements() Get an iterator of all statements within this graph
ITransactionManager	getTransactionManager() Return ITransactionManager for this graph
boolean	isClosed() Return if graph is closed
boolean	isEmpty() Return if graph is empty
boolean	isMetadataGraph() Determine if the underlying graph a metadata graph
void	setNamedGraphUri(org.openrdf.model.URI namedGraphUri) Set NamedGraph's URI
void	setParentGraph(INamedGraph graph) Set the parent graph
int	size() Return number of statements in graph

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NotificationNamedGraphProxy

public NotificationNamedGraphProxy(INamedGraph baseGraph,
                                   org.openrdf.model.URI namedGraphUri,
                                   boolean isMetadataGraph,
                                   DatasetService datasetService)

Create new NotificationNamedGraphProxy for baseGraph with given uri

Parameters:

baseGraph - Parent graph

namedGraphUri - URI for NamedGraph, equal to parents URI if this is a data graph, or equal to the parent graph's URI if this is a metadataGraph

isMetadataGraph - is the baseGraph metadataGraph

datasetService - parent datasetService

NotificationNamedGraphProxy

public NotificationNamedGraphProxy(INamedGraph baseGraph,
                                   boolean isMetadataGraph,
                                   DatasetService datasetService)

Create new NotificationNamedGraphProxy for baseGraph with given ITransactionQueueManager

Parameters:

baseGraph - Parent graph

isMetadataGraph - is this graph a metadata graph

datasetService - parent datasetService

Method Detail

getNamedGraphUri

public org.openrdf.model.URI getNamedGraphUri()

Get the URI of parent graph

Specified by:

getNamedGraphUri in interface INamedGraph

Returns:

URI of parent graph

setNamedGraphUri

public void setNamedGraphUri(org.openrdf.model.URI namedGraphUri)

Description copied from interface: INamedGraph

Set NamedGraph's URI

Specified by:

setNamedGraphUri in interface INamedGraph

isMetadataGraph

public boolean isMetadataGraph()

Determine if the underlying graph a metadata graph

Returns:

true if the underlying graph a metadata graph

getParentGraph

public INamedGraph getParentGraph()

Description copied from interface: IProxyGraph

Get the graph to which this proxy is proxing information.

Specified by:

getParentGraph in interface IProxyGraph

Returns:

parent graph to which this proxy is proxing information

setParentGraph

public void setParentGraph(INamedGraph graph)
                    throws TransactionGraphException

Set the parent graph

Parameters:

graph - parent graph

Throws:

TransactionGraphException - thrown if parent already set

add

public void add(org.openrdf.model.Resource subj,
                org.openrdf.model.URI pred,
                org.openrdf.model.Value obj)

Description copied from interface: INamedGraph

Add a new statement with given subj,pred,obj

Specified by:

add in interface INamedGraph

Parameters:

subj - Subject of statement

pred - Predicate of statement

obj - Object of statement

delete

public void delete(org.openrdf.model.Resource subj,
                   org.openrdf.model.URI pred,
                   org.openrdf.model.Value obj)

Description copied from interface: INamedGraph

Delete a statement from graph

Specified by:

delete in interface INamedGraph

Parameters:

subj - Subject of statement

pred - Predicate of statement

obj - Object of statement

add

public void add(org.openrdf.model.Statement... statements)

Description copied from interface: INamedGraph

Add one or more statements to graph

Specified by:

add in interface INamedGraph

Parameters:

statements - statements to add to graph

delete

public void delete(org.openrdf.model.Statement... statements)

Description copied from interface: INamedGraph

Delete a set of statements from graph

Specified by:

delete in interface INamedGraph

Parameters:

statements - statements to delete from graph

find

public info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement> find(org.openrdf.model.Resource subj,
                                                                                            org.openrdf.model.URI prop,
                                                                                            org.openrdf.model.Value obj)

Search parent graph, and then overlay contents of notification transaction

Specified by:

find in interface INamedGraph

Parameters:

subj - Subject resource to match, or wildcard if null

prop - Predicate uri to match, or wildcard if null

obj - Object value to match, or wildcard if null

Returns:

Iterator of statements matching match pattern

close

public void close()

Description copied from interface: INamedGraph

Close the graph.

Specified by:

close in interface INamedGraph

contains

public boolean contains(org.openrdf.model.Resource s,
                        org.openrdf.model.URI p,
                        org.openrdf.model.Value o)

Description copied from interface: INamedGraph

Return true if the graph contains at least 1 statement that matches the pattern of subj,prop,obj

Specified by:

contains in interface INamedGraph

Parameters:

s - Subject resource to match, or wildcard if null

p - Predicate uri to match, or wildcard if null

o - Object value to match, or wildcard if null

Returns:

true if the graph contains at least 1 statement that matches the pattern of subj,prop,obj

contains

public boolean contains(org.openrdf.model.Statement s)

Description copied from interface: INamedGraph

Return true if the graph contains at least 1 statement that matches the statement provided

Specified by:

contains in interface INamedGraph

Parameters:

s - Statement to check for existence in graph

Returns:

true if the graph contains at least 1 statement that matches the statement provided

size

public int size()

Description copied from interface: INamedGraph

Return number of statements in graph

Specified by:

size in interface INamedGraph

Returns:

number of statements in graph

isEmpty

public boolean isEmpty()

Description copied from interface: INamedGraph

Return if graph is empty

Specified by:

isEmpty in interface INamedGraph

Returns:

true if graph is empty

clear

public void clear()

Description copied from interface: INamedGraph

Delete all statements in graph

Specified by:

clear in interface INamedGraph

isClosed

public boolean isClosed()

Description copied from interface: INamedGraph

Return if graph is closed

Specified by:

isClosed in interface INamedGraph

Returns:

true if graph is closed

delete

public void delete(info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement> statements)

Description copied from interface: INamedGraph

Delete a set of statements from graph

Specified by:

delete in interface INamedGraph

Parameters:

statements - statements to delete from graph

add

public void add(info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement> statements)

Description copied from interface: INamedGraph

Add a set of statements from graph

Specified by:

add in interface INamedGraph

Parameters:

statements - statements to delete from graph

getStatements

public info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement> getStatements()

Description copied from interface: INamedGraph

Get an iterator of all statements within this graph

Specified by:

getStatements in interface INamedGraph

Returns:

CloseableIterator of all statements within this graph

getEventManager

public INamedGraphEventManager getEventManager()

Description copied from interface: INamedGraph

Return INamedGraphEventManager for this graph

Specified by:

getEventManager in interface INamedGraph

Returns:

INamedGraphEventManager for this graph

getTransactionManager

public ITransactionManager getTransactionManager()

Description copied from interface: INamedGraph

Return ITransactionManager for this graph

Specified by:

getTransactionManager in interface INamedGraph

Returns:

ITransactionManager for this graph