org.openanzo.model.impl
Class BasicGraph

java.lang.Object
  org.openanzo.model.impl.BasicGraph

All Implemented Interfaces:

INamedGraph

Direct Known Subclasses:

NamedGraph

public class BasicGraph
extends java.lang.Object
implements INamedGraph

BasicGraph is the basic in-memory implementation of an INamedGraph which relies on a triple store to hold data in memory.

Author:

Matthew Roy ( mroy@cambridgesemantics.com )

Constructor Summary

BasicGraph(java.util.Collection<org.openrdf.model.Statement> statements, org.openrdf.model.URI namedGraphURI)
Create a new BasicGraph with given URI, and prepopulated with set of statements

BasicGraph(org.openrdf.model.URI namedGraphURI)
Create a new BasicGraph 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 BasicGraph, will clear all data within graph to free memory.
boolean	contains(org.openrdf.model.Resource subj, org.openrdf.model.URI prop, org.openrdf.model.Value obj) Return true if the graph contains at least 1 statement that matches the pattern of subj,prop,obj
boolean	contains(org.openrdf.model.Statement stmt) 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) Return an iterator of all statements that match the pattern of subj,prop,obj
INamedGraphEventManager	getEventManager() Return INamedGraphEventManager for this graph
org.openrdf.model.URI	getNamedGraphUri() Get NamedGraph's URI
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
void	setNamedGraphUri(org.openrdf.model.URI namedGraphUri) Set NamedGraph's URI
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

BasicGraph

public BasicGraph(org.openrdf.model.URI namedGraphURI)

Create a new BasicGraph with given URI

Parameters:

namedGraphURI - URI of this graph

BasicGraph

public BasicGraph(java.util.Collection<org.openrdf.model.Statement> statements,
                  org.openrdf.model.URI namedGraphURI)

Create a new BasicGraph with given URI, and prepopulated with set of statements

Parameters:

statements - statements to prepopulate graph with

namedGraphURI - URI of this graph

Method Detail

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

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

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

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

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)

Description copied from interface: INamedGraph

Return an iterator of all statements that match the pattern of subj,prop,obj

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:

an iterator of all statements that match the pattern of subj,prop,obj

contains

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

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:

stmt - Statement to check for existence in graph

Returns:

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

contains

public boolean contains(org.openrdf.model.Resource subj,
                        org.openrdf.model.URI prop,
                        org.openrdf.model.Value obj)

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:

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:

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

close

public void close()

Close BasicGraph, will clear all data within graph to free memory.

Specified by:

close in interface INamedGraph

getNamedGraphUri

public org.openrdf.model.URI getNamedGraphUri()

Description copied from interface: INamedGraph

Get NamedGraph's URI

Specified by:

getNamedGraphUri in interface INamedGraph

Returns:

URI for this grpah

setNamedGraphUri

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

Description copied from interface: INamedGraph

Set NamedGraph's URI

Specified by:

setNamedGraphUri in interface INamedGraph

clear

public void clear()

Description copied from interface: INamedGraph

Delete all statements in graph

Specified by:

clear in interface INamedGraph

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

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

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