org.openanzo.model.proxy
Class MetadataProxyGraph

java.lang.Object
  org.openanzo.model.proxy.ProxyGraph
      org.openanzo.model.proxy.NamedGraphProxy
          org.openanzo.model.proxy.MetadataProxyGraph

All Implemented Interfaces:

INamedGraph, IProxyGraph

public class MetadataProxyGraph
extends NamedGraphProxy

MetaDataProxyGraph is a NamedGraphProxy that represents the Metadata about a NamedGraph The operations on the graph ensure only Metadata predicates are processed.

Author:

Matthew Roy ( mroy@cambridgesemantics.com )

Constructor Summary

MetadataProxyGraph(INamedGraph parentGraph)
Create a new MetadataProxyGraph

MetadataProxyGraph(org.openrdf.model.URI namedGraphUri, INamedGraph parentGraph)
Create a new MetadataProxyGraph

Method Summary

void	add(org.openrdf.model.Statement... statements) Add one or more statements to 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
void	delete(info.aduna.collections.iterators.CloseableIterator<org.openrdf.model.Statement> statements) Delete a set of statements 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

Methods inherited from class org.openanzo.model.proxy.NamedGraphProxy

getNamedGraphUri, getParentGraph, getTransactionManager, isClosed, isMetadataGraph, setNamedGraphUri, toString

Methods inherited from class org.openanzo.model.proxy.ProxyGraph

add, add, clear, close, contains, delete, getEventManager, getStatements, isEmpty, size

Methods inherited from class java.lang.Object

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

Constructor Detail

MetadataProxyGraph

public MetadataProxyGraph(org.openrdf.model.URI namedGraphUri,
                          INamedGraph parentGraph)

Create a new MetadataProxyGraph

Parameters:

namedGraphUri - uri of metadata graph

parentGraph - graph for which this is metadata

MetadataProxyGraph

public MetadataProxyGraph(INamedGraph parentGraph)

Create a new MetadataProxyGraph

Parameters:

parentGraph - graph for which this is metadata

Method Detail

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

Overrides:

find in class ProxyGraph

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.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

Overrides:

contains in class ProxyGraph

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

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

Overrides:

add in class ProxyGraph

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

Overrides:

delete in class ProxyGraph

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

Overrides:

delete in class ProxyGraph

Parameters:

statements - statements to delete from graph