Dyadic (Apache Jena)

java.lang.Object
- org.apache.jena.graph.impl.GraphBase
- - org.apache.jena.graph.compose.CompositionBase
  - - org.apache.jena.graph.compose.Dyadic

All Implemented Interfaces:

Graph, GraphWithPerform

Direct Known Subclasses:

Difference, DisjointUnion, Intersection, Union
```
public abstract class Dyadic
extends CompositionBase
```
Base class for the two-operand composition operations; has two graphs L and R

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

Dyadic(Graph L, Graph R)
When the graph is constructed, copy the prefix mappings of both components into this prefix mapping.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Close this graph.
`boolean`	`dependsOn(Graph other)`	Generic dependsOn, true iff it depends on either of the subgraphs.
`Graph`	`getL()`	Answer the left (first) operand of this Dyadic.
`Graph`	`getR()`	Answer the right (second) operand of this Dyadic.
`Union`	`union(Graph X)`

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, performAdd, performDelete, 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, delete, find, stream, stream

- Constructor Detail
  - Dyadic
```
public Dyadic(Graph L,
              Graph R)
```
    When the graph is constructed, copy the prefix mappings of both components into this prefix mapping. The prefix mapping doesn't change afterwards with the components, which might be regarded as a bug.
- Method Detail
  - close
```
public void close()
```
    Description copied from class: GraphBase
    
    Close this graph. Subgraphs may extend to discard resources.
    
    Specified by:
    
    close in interface Graph
    
    Overrides:
    
    close in class GraphBase
  - dependsOn
```
public boolean dependsOn(Graph other)
```
    Generic dependsOn, true iff it depends on either of the subgraphs.
    
    Specified by:
    
    dependsOn in interface Graph
    
    Overrides:
    
    dependsOn in class GraphBase
    
    Parameters:
    
    other - the graph this graph may depend on
    
    Returns:
    
    false if this does not depend on other
  - union
```
public Union union(Graph X)
```
  - getL
```
public Graph getL()
```
    Answer the left (first) operand of this Dyadic.
  - getR
```
public Graph getR()
```
    Answer the right (second) operand of this Dyadic.