Union (Apache Jena)

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.Union

All Implemented Interfaces:

Graph, GraphWithPerform
```
public class Union
extends Dyadic
implements Graph
```
A class representing the dynamic union of two graphs. Addition only affects the left operand, deletion affects both.

See Also:

MultiUnion

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 Description

Union(Graph L, Graph R)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`graphBaseContains(Triple t)`
`void`	`performAdd(Triple t)`	To add a triple to the union, add it to the left operand; this is asymmetric.
`void`	`performDelete(Triple t)`	To remove a triple, remove it from both operands.

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, 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
add, add, clear, close, contains, contains, delete, delete, dependsOn, find, find, find, getCapabilities, getEventManager, getPrefixMapping, getTransactionHandler, isClosed, isEmpty, isIsomorphicWith, remove, size, stream, stream

- Constructor Detail
  - Union
```
public Union(Graph L,
             Graph R)
```
- Method Detail
  - performAdd
```
public void performAdd(Triple t)
```
    To add a triple to the union, add it to the left operand; this is asymmetric.
    
    Specified by:
    
    performAdd in interface GraphWithPerform
    
    Overrides:
    
    performAdd in class GraphBase
  - performDelete
```
public void performDelete(Triple t)
```
    To remove a triple, remove it from both operands.
    
    Specified by:
    
    performDelete in interface GraphWithPerform
    
    Overrides:
    
    performDelete in class GraphBase
  - graphBaseContains
```
public boolean graphBaseContains(Triple t)
```