org.apache.jena.graph.compose

Class DisjointUnion

java.lang.Object

org.apache.jena.graph.impl.GraphBase

org.apache.jena.graph.compose.CompositionBase

org.apache.jena.graph.compose.Dyadic

org.apache.jena.graph.compose.DisjointUnion

All Implemented Interfaces:

Graph, GraphWithPerform

public class DisjointUnion
extends Dyadic

DisjointUnion - a version of Union that assumes the graphs are disjoint, and hence that find need not do duplicate-removal. Adding things to the graph adds them to the left component, and does not add triples that are already in the right component.

Field Summary

Fields inherited from class org.apache.jena.graph.impl.GraphBase

TOSTRING_TRIPLE_BASE, TOSTRING_TRIPLE_LIMIT

Fields inherited from interface org.apache.jena.graph.Graph

emptyGraph

Constructor Summary

Constructors

Constructor and Description
DisjointUnion(Graph L, Graph R)

Method Summary

Modifier and Type	Method and Description
boolean	graphBaseContains(Triple t) Answer true if the graph contains any triple matching t.
void	performAdd(Triple t) Add a triple to the triple store.
void	performDelete(Triple t) Remove a triple from the triple store.

Methods inherited from class org.apache.jena.graph.compose.Dyadic

close, dependsOn, getL, getR, union

Methods inherited from class org.apache.jena.graph.compose.CompositionBase

butNot, ifIn, ifIn, recording, reject, rejecting, rejecting

Methods inherited from class org.apache.jena.graph.impl.GraphBase

add, clear, contains, contains, delete, find, find, forTestingOnly_graphBaseFind, getCapabilities, getEventManager, getPrefixMapping, getStatisticsHandler, getTransactionHandler, isClosed, isEmpty, isIsomorphicWith, notifyAdd, notifyDelete, remove, size, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.graph.Graph

find

Constructor Detail

DisjointUnion

public DisjointUnion(Graph L,
                     Graph R)

Method Detail

graphBaseContains

public boolean graphBaseContains(Triple t)

Description copied from class: GraphBase

Answer true if the graph contains any triple matching t. The default implementation uses find and checks to see if the iterator is non-empty.

performDelete

public void performDelete(Triple t)

Description copied from class: GraphBase

Remove a triple from the triple store. The default implementation throws a DeleteDeniedException; subclasses must override if they want to be able to remove triples.

Specified by:

performDelete in interface GraphWithPerform

Overrides:

performDelete in class GraphBase

performAdd

public void performAdd(Triple t)

Description copied from class: GraphBase

Add a triple to the triple store. The default implementation throws an AddDeniedException; subclasses must override if they want to be able to add triples.

Specified by:

performAdd in interface GraphWithPerform

Overrides:

performAdd in class GraphBase