org.topbraid.core.graph
Class CachingGraph

java.lang.Object
  org.topbraid.core.graph.DelegatingGraph
      org.topbraid.core.graph.CachingGraph

All Implemented Interfaces:

com.hp.hpl.jena.graph.Graph, com.hp.hpl.jena.graph.GraphAdd, BatchOperationGraph

public class CachingGraph
extends DelegatingGraph

A DelegatingGraph with additional caching services optimized for typical query patterns in TopBraid Composer. The performance is best if the graph is initialized by calling generic predicate queries such as (null, rdfs:subClassOf, null).

Author:

Holger Knublauch

Field Summary

static java.lang.String	CACHED_PROPERTIES
static java.lang.String	DEFAULT_CACHED_PROPERTIES

Fields inherited from interface com.hp.hpl.jena.graph.Graph

emptyGraph

Constructor Summary

CachingGraph(com.hp.hpl.jena.graph.Graph delegate)

Method Summary

void	add(java.util.Collection<com.hp.hpl.jena.graph.Triple> triples) Adds multiple Triples at the same time.
void	add(com.hp.hpl.jena.graph.Triple t)
void	clearCache() Completely clears any existing caches.
boolean	contains(com.hp.hpl.jena.graph.Node s, com.hp.hpl.jena.graph.Node p, com.hp.hpl.jena.graph.Node o)
boolean	contains(com.hp.hpl.jena.graph.Triple m)
void	delete(java.util.Collection<com.hp.hpl.jena.graph.Triple> triples) Deletes multiple Triples at the same time.
void	delete(com.hp.hpl.jena.graph.Triple t)
com.hp.hpl.jena.util.iterator.ExtendedIterator	find(com.hp.hpl.jena.graph.Node s, com.hp.hpl.jena.graph.Node p, com.hp.hpl.jena.graph.Node o)
com.hp.hpl.jena.util.iterator.ExtendedIterator	find(com.hp.hpl.jena.graph.TripleMatch m)
static java.util.List<com.hp.hpl.jena.graph.Node>	getCachedPropertyNodes(com.hp.hpl.jena.graph.Graph graph)
protected com.hp.hpl.jena.mem.faster.GraphMemFaster	getPredicateGraph(com.hp.hpl.jena.graph.Node predicate)
void	rebuildCache(org.eclipse.core.runtime.IProgressMonitor monitor)
protected void	tripleAdded(com.hp.hpl.jena.graph.Triple t)
protected void	tripleDeleted(com.hp.hpl.jena.graph.Triple t)

Methods inherited from class org.topbraid.core.graph.DelegatingGraph

close, dependsOn, getBulkUpdateHandler, getCapabilities, getDelegate, getEventManager, getPrefixMapping, getReifier, getStatisticsHandler, getTerminalDelegate, getTransactionHandler, isClosed, isEmpty, isIsomorphicWith, notifyAdd, notifyDelete, queryHandler, size

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_CACHED_PROPERTIES

public static final java.lang.String DEFAULT_CACHED_PROPERTIES

See Also:

Constant Field Values

CACHED_PROPERTIES

public static final java.lang.String CACHED_PROPERTIES

See Also:

Constant Field Values

Constructor Detail

CachingGraph

public CachingGraph(com.hp.hpl.jena.graph.Graph delegate)

Method Detail

add

public void add(com.hp.hpl.jena.graph.Triple t)
         throws com.hp.hpl.jena.shared.AddDeniedException

Specified by:

add in interface com.hp.hpl.jena.graph.GraphAdd

Overrides:

add in class DelegatingGraph

Throws:

com.hp.hpl.jena.shared.AddDeniedException

add

public void add(java.util.Collection<com.hp.hpl.jena.graph.Triple> triples)

Description copied from interface: BatchOperationGraph

Adds multiple Triples at the same time.

Specified by:

add in interface BatchOperationGraph

Overrides:

add in class DelegatingGraph

Parameters:

triples - the Triples to add

contains

public boolean contains(com.hp.hpl.jena.graph.Triple m)

Specified by:

contains in interface com.hp.hpl.jena.graph.Graph

Overrides:

contains in class DelegatingGraph

contains

public boolean contains(com.hp.hpl.jena.graph.Node s,
                        com.hp.hpl.jena.graph.Node p,
                        com.hp.hpl.jena.graph.Node o)

Specified by:

contains in interface com.hp.hpl.jena.graph.Graph

Overrides:

contains in class DelegatingGraph

clearCache

public final void clearCache()

Completely clears any existing caches.

delete

public void delete(com.hp.hpl.jena.graph.Triple t)
            throws com.hp.hpl.jena.shared.DeleteDeniedException

Specified by:

delete in interface com.hp.hpl.jena.graph.Graph

Overrides:

delete in class DelegatingGraph

Throws:

com.hp.hpl.jena.shared.DeleteDeniedException

delete

public void delete(java.util.Collection<com.hp.hpl.jena.graph.Triple> triples)

Description copied from interface: BatchOperationGraph

Deletes multiple Triples at the same time.

Specified by:

delete in interface BatchOperationGraph

Overrides:

delete in class DelegatingGraph

Parameters:

triples - the Triples to delete

find

public com.hp.hpl.jena.util.iterator.ExtendedIterator find(com.hp.hpl.jena.graph.Node s,
                                                           com.hp.hpl.jena.graph.Node p,
                                                           com.hp.hpl.jena.graph.Node o)

Specified by:

find in interface com.hp.hpl.jena.graph.Graph

Overrides:

find in class DelegatingGraph

find

public final com.hp.hpl.jena.util.iterator.ExtendedIterator find(com.hp.hpl.jena.graph.TripleMatch m)

Specified by:

find in interface com.hp.hpl.jena.graph.Graph

Overrides:

find in class DelegatingGraph

getCachedPropertyNodes

public static java.util.List<com.hp.hpl.jena.graph.Node> getCachedPropertyNodes(com.hp.hpl.jena.graph.Graph graph)

getPredicateGraph

protected final com.hp.hpl.jena.mem.faster.GraphMemFaster getPredicateGraph(com.hp.hpl.jena.graph.Node predicate)

rebuildCache

public void rebuildCache(org.eclipse.core.runtime.IProgressMonitor monitor)

tripleAdded

protected final void tripleAdded(com.hp.hpl.jena.graph.Triple t)

tripleDeleted

protected final void tripleDeleted(com.hp.hpl.jena.graph.Triple t)