DatasetGraphCollection (Apache Jena ARQ)

java.lang.Object
- org.apache.jena.sparql.core.DatasetGraphBase
- - org.apache.jena.sparql.core.DatasetGraphBaseFind
  - - org.apache.jena.sparql.core.DatasetGraphCollection

All Implemented Interfaces:

org.apache.jena.atlas.lib.Closeable, DatasetGraph, Transactional

Direct Known Subclasses:

DatasetGraphMapLink
```
public abstract class DatasetGraphCollection
extends DatasetGraphBaseFind
```
Base class for implementations of a DatasetGraph as a set of graphs. This can be a fixed collection or a changeable collection depending on the implementation of getDefaultGraph()/getGraph(Node)

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.jena.sparql.core.Transactional
  Transactional.Promote

Constructor Summary

Constructors
Constructor Description

DatasetGraphCollection()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(Quad quad)`	Add a quad
`void`	`clear()`	Remove everything - remove all named graphs, clear the default graph
`void`	`delete(Quad quad)`	Delete a quad
`abstract java.util.Iterator<Node>`	`listGraphNodes()`	Iterate over all names of named graphs

Methods inherited from class org.apache.jena.sparql.core.DatasetGraphBaseFind
find, findInUnionGraph, findNG, findQuadsInUnionGraph

Methods inherited from class org.apache.jena.sparql.core.DatasetGraphBase
add, addGraph, close, contains, contains, containsGraph, delete, deleteAny, deleteAny, find, find, getContext, getDefaultGraph, getGraph, getLock, getUnionGraph, isEmpty, removeGraph, setDefaultGraph, size, toString

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.jena.sparql.core.DatasetGraph
addAll, prefixes, supportsTransactionAbort, supportsTransactions

Methods inherited from interface org.apache.jena.sparql.core.Transactional
abort, begin, begin, begin, calc, calculate, calculateRead, calculateWrite, commit, end, exec, execute, executeRead, executeWrite, isInTransaction, promote, promote, transactionMode, transactionType

- Constructor Detail
  - DatasetGraphCollection
```
public DatasetGraphCollection()
```
- Method Detail
  - add
```
public void add(Quad quad)
```
    Description copied from interface: DatasetGraph
    
    Add a quad
    
    Specified by:
    
    add in interface DatasetGraph
    
    Overrides:
    
    add in class DatasetGraphBase
  - delete
```
public void delete(Quad quad)
```
    Description copied from interface: DatasetGraph
    
    Delete a quad
    
    Specified by:
    
    delete in interface DatasetGraph
    
    Overrides:
    
    delete in class DatasetGraphBase
  - listGraphNodes
```
public abstract java.util.Iterator<Node> listGraphNodes()
```
    Description copied from interface: DatasetGraph
    
    Iterate over all names of named graphs
  - clear
```
public void clear()
```
    Description copied from interface: DatasetGraph
    
    Remove everything - remove all named graphs, clear the default graph
    
    Specified by:
    
    clear in interface DatasetGraph
    
    Overrides:
    
    clear in class DatasetGraphBase