Package org.aksw.jena_sparql_api.collection.observable

Class ObservableSetFromGraph

java.lang.Object

java.util.AbstractCollection<T>

org.aksw.commons.collection.observable.DeltaCollectionBase<T,Collection<T>>

org.aksw.commons.collection.observable.ForwardingDeltaCollectionBase<org.apache.jena.graph.Triple,Set<org.apache.jena.graph.Triple>>

org.aksw.jena_sparql_api.collection.observable.ObservableSetFromGraph

Type Parameters:

T -

All Implemented Interfaces:

Iterable<org.apache.jena.graph.Triple>, Collection<org.apache.jena.graph.Triple>, Set<org.apache.jena.graph.Triple>, org.aksw.commons.collection.observable.DeltaCollection<org.apache.jena.graph.Triple>, org.aksw.commons.collection.observable.ObservableCollection<org.apache.jena.graph.Triple>, org.aksw.commons.collection.observable.ObservableSet<org.apache.jena.graph.Triple>

public class ObservableSetFromGraph
extends org.aksw.commons.collection.observable.ForwardingDeltaCollectionBase<org.apache.jena.graph.Triple,Set<org.apache.jena.graph.Triple>>
implements org.aksw.commons.collection.observable.ObservableSet<org.apache.jena.graph.Triple>

Set view over the values of a property of a given subject resource. Issue: Jena's event mechanism does not seem to allow getting actual graph changes; i.e. ignoring events for redundant additions or deletions. Also, there does not seem to be an integration with transaction - i.e. aborting a transaction should raise an event that undos all previously raised additions/deletions.

Author:

raven Nov 25, 2020

Field Summary

Fields

Modifier and Type	Field	Description
protected ObservableGraph	graph

Fields inherited from class org.aksw.commons.collection.observable.ForwardingDeltaCollectionBase

backend

Constructor Summary

Constructors

Constructor	Description
ObservableSetFromGraph(ObservableGraph graph)

Method Summary

Modifier and Type	Method	Description
org.aksw.commons.collection.observable.Registration	addPropertyChangeListener(PropertyChangeListener listener)
Runnable	addVetoableChangeListener(VetoableChangeListener listener)
protected PropertyChangeEvent	convertEvent(PropertyChangeEvent ev)
static ObservableSetFromGraph	decorate(org.apache.jena.graph.Graph graph)
boolean	delta(Collection<? extends org.apache.jena.graph.Triple> additions, Collection<?> removals)
ObservableGraph	getGraph()
static void	main(String[] args)

Methods inherited from class org.aksw.commons.collection.observable.ForwardingDeltaCollectionBase

getBackend, isDuplicateAwareBackend, iterator, size

Methods inherited from class org.aksw.commons.collection.observable.DeltaCollectionBase

add, addAll, clear, remove, removeAll

Methods inherited from class java.util.AbstractCollection

contains, containsAll, isEmpty, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface org.aksw.commons.collection.observable.DeltaCollection

replace

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface org.aksw.commons.collection.observable.ObservableCollection

convert, filter, map, mapToValue, mapToValue

Methods inherited from interface org.aksw.commons.collection.observable.ObservableSet

fieldForPresence

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, spliterator, toArray, toArray

Field Details

graph

protected ObservableGraph graph

Constructor Details

ObservableSetFromGraph

public ObservableSetFromGraph(ObservableGraph graph)

Method Details

delta

public boolean delta(Collection<? extends org.apache.jena.graph.Triple> additions,
 Collection<?> removals)

Specified by:

delta in interface org.aksw.commons.collection.observable.DeltaCollection<org.apache.jena.graph.Triple>

getGraph

public ObservableGraph getGraph()

convertEvent

protected PropertyChangeEvent convertEvent(PropertyChangeEvent ev)

addVetoableChangeListener

public Runnable addVetoableChangeListener(VetoableChangeListener listener)

Specified by:

addVetoableChangeListener in interface org.aksw.commons.collection.observable.ObservableCollection<org.apache.jena.graph.Triple>

Returns:

A Runnable that de-registers the listener upon calling .run()

addPropertyChangeListener

public org.aksw.commons.collection.observable.Registration addPropertyChangeListener(PropertyChangeListener listener)

Specified by:

addPropertyChangeListener in interface org.aksw.commons.collection.observable.ObservableCollection<org.apache.jena.graph.Triple>

Returns:

A Runnable that de-registers the listener upon calling .run()

decorate

public static ObservableSetFromGraph decorate(org.apache.jena.graph.Graph graph)

main

public static void main(String[] args)