org.aksw.commons.graph
Class DeltaGraph

java.lang.Object
  org.aksw.commons.graph.BaseIndexedGraph
      org.aksw.commons.graph.DeltaGraph

All Implemented Interfaces:

IGraph

public class DeltaGraph
extends BaseIndexedGraph

A wrapper for an underlying graph, whereas the uncachedBulkFind method respects the added and removed triples.

Author:

raven

Field Summary

Fields inherited from class org.aksw.commons.graph.BaseIndexedGraph

cacheProvider, listeners

Constructor Summary

DeltaGraph(IGraph baseGraph)

Method Summary

void	add(Collection<com.hp.hpl.jena.graph.Triple> triples) Adds triples to the graph
void	addTriple(com.hp.hpl.jena.graph.Triple triple)
void	clear() Removes all triples from the graph
void	commit() Performs the addition/removal on the base graph.
IGraph	getAdditionGraph()
IGraph	getBaseGraph()
IGraph	getRemovalGraph()
void	remove(Collection<com.hp.hpl.jena.graph.Triple> triples)
void	removeTriple(com.hp.hpl.jena.graph.Triple triple)
Set<com.hp.hpl.jena.graph.Triple>	uncachedBulkFind(Set<List<Object>> keys, int[] indexColumns) FIXME: Uncached bulkFind does NOT mean, that no caches will be used.

Methods inherited from class org.aksw.commons.graph.BaseIndexedGraph

bulkFind, getCacheProvider, getGraphListeners, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DeltaGraph

public DeltaGraph(IGraph baseGraph)

Method Detail

commit

public void commit()

Performs the addition/removal on the base graph. Note that this does not change the set of triples in the graph. Warning: Make sure that triples added to the base graph remain the same on retrieval - otherwise this would cause problems. For instance, datatype information for certain literals get lost in virtuoso. Such critical triples should not be inserted. Wrapp this graph to transform critical triples to safe ones beforehand.

addTriple

public void addTriple(com.hp.hpl.jena.graph.Triple triple)

removeTriple

public void removeTriple(com.hp.hpl.jena.graph.Triple triple)

getBaseGraph

public IGraph getBaseGraph()

getAdditionGraph

public IGraph getAdditionGraph()

getRemovalGraph

public IGraph getRemovalGraph()

add

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

Description copied from interface: IGraph

Adds triples to the graph

Specified by:

add in interface IGraph

Overrides:

add in class BaseIndexedGraph

remove

public void remove(Collection<com.hp.hpl.jena.graph.Triple> triples)

Specified by:

remove in interface IGraph

Overrides:

remove in class BaseIndexedGraph

uncachedBulkFind

public Set<com.hp.hpl.jena.graph.Triple> uncachedBulkFind(Set<List<Object>> keys,
                                                          int[] indexColumns)

FIXME: Uncached bulkFind does NOT mean, that no caches will be used. It only means that the caches of the called graph object will not be used.

clear

public void clear()

Description copied from interface: IGraph

Removes all triples from the graph