AbstractGraph (xdi2-core 0.7.2 API)

java.lang.Object
- xdi2.core.impl.AbstractGraph

All Implemented Interfaces:

Serializable, Comparable<Graph>, Graph

Direct Known Subclasses:

DummyGraph, JSONGraph, KeyValueGraph, MemoryGraph, WrappedGraph
```
public abstract class AbstractGraph
extends Object
implements Graph
```
See Also:
Serialized Form

Constructor Summary

Constructors
Modifier Constructor and Description

protected AbstractGraph(GraphFactory graphFactory, String identifier)

Constructors
Modifier	Constructor and Description
`protected`	`AbstractGraph(GraphFactory graphFactory, String identifier)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`beginTransaction()` Starts a new transaction.
`void`	`clear()` Clears all data from the graph.
`void`	`commitTransaction()` Commits the changes made by the transaction.
`int`	`compareTo(Graph other)`
`boolean`	`containsStatement(XDIStatement XDIstatement)` Check if a statement exists in this graph.
`boolean`	`equals(Object object)`
`long`	`getAllStatementCount()` Returns the number of all statements in this graph.
`ReadOnlyIterator<Statement>`	`getAllStatements()` Gets all statements in this graph.
`ContextNode`	`getDeepContextNode(XDIAddress contextNodeXDIAddress)`
`ContextNode`	`getDeepContextNode(XDIAddress contextNodeXDIAddress, boolean subgraph)`
`LiteralNode`	`getDeepLiteralNode(XDIAddress literalNodeXDIAddress)`
`LiteralNode`	`getDeepLiteralNode(XDIAddress literalNodeXDIAddress, boolean subgraph)`
`Node`	`getDeepNode(XDIAddress nodeXDIAddress)` Returns a node at an arbitrary level of the graph.
`Node`	`getDeepNode(XDIAddress nodeXDIAddress, boolean subgraph)` Returns a node at an arbitrary level of the graph.
`GraphFactory`	`getGraphFactory()` Gets the graph factory that created this graph.
`String`	`getIdentifier()` Returns an optional identifier to distinguish graphs from one another.
`ContextNode`	`getRootContextNode()` Gets the local root context node of this graph.
`Statement`	`getStatement(XDIStatement XDIstatement)` Gets a statement in this graph.
`int`	`hashCode()`
`boolean`	`isEmpty()` Checks if the graph is empty.
`void`	`rollbackTransaction()` Rolls back the changes made by the transaction.
`ContextNode`	`setDeepContextNode(XDIAddress contextNodeXDIAddress)`
`LiteralNode`	`setDeepLiteralNode(XDIAddress literalNodeXDIAddress)`
`Node`	`setDeepNode(XDIAddress nodeXDIAddress)` Create a new node at an arbitrary level of the graph, or returns an existing node.
`Statement`	`setStatement(XDIStatement XDIstatement)` Sets a statement in this graph.
`boolean`	`supportsTransactions()` Check if this graph supports transactions.
`String`	`toString()`
`String`	`toString(MimeType mimeType)` Converts the graph to a string in the given MIME type.
`String`	`toString(String format, Properties parameters)` Converts the graph to a string in the given serialization format.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface xdi2.core.Graph
close, getRootContextNode

- Constructor Detail
  - AbstractGraph
```
protected AbstractGraph(GraphFactory graphFactory,
             String identifier)
```
- Method Detail
  - getGraphFactory
```
public GraphFactory getGraphFactory()
```
    Description copied from interface: Graph
    
    Gets the graph factory that created this graph.
    
    Specified by:
    
    getGraphFactory in interface Graph
    
    Returns:
    The graph factory.
  - getIdentifier
```
public String getIdentifier()
```
    Description copied from interface: Graph
    
    Returns an optional identifier to distinguish graphs from one another.
    
    Specified by:
    
    getIdentifier in interface Graph
    
    Returns:
    The graph identifier.
  - getRootContextNode
```
public ContextNode getRootContextNode()
```
    Description copied from interface: Graph
    
    Gets the local root context node of this graph.
    
    Specified by:
    
    getRootContextNode in interface Graph
    
    Returns:
    The graph's local root context node.
  - clear
```
public void clear()
```
    Description copied from interface: Graph
    
    Clears all data from the graph. This is equivalent to calling getRootContextNode().clear();
    
    Specified by:
    
    clear in interface Graph
  - isEmpty
```
public boolean isEmpty()
```
    Description copied from interface: Graph
    
    Checks if the graph is empty. This is equivalent to calling getRootContextNode().isEmpty();
    
    Specified by:
    
    isEmpty in interface Graph
  - toString
```
public String toString(String format,
              Properties parameters)
```
    Description copied from interface: Graph
    
    Converts the graph to a string in the given serialization format.
    
    Specified by:
    
    toString in interface Graph
    
    Parameters:
    format - The serialization format.
    parameters - Parameters for the serialization.
  - toString
```
public String toString(MimeType mimeType)
```
    Description copied from interface: Graph
    
    Converts the graph to a string in the given MIME type.
    
    Specified by:
    
    toString in interface Graph
    
    Parameters:
    mimeType - The MIME type.
  - setDeepNode
```
public Node setDeepNode(XDIAddress nodeXDIAddress)
```
    Description copied from interface: Graph
    
    Create a new node at an arbitrary level of the graph, or returns an existing node.
    
    Specified by:
    
    setDeepNode in interface Graph
    
    Parameters:
    nodeXDIAddress - The relative address of the new or existing node.
    
    Returns:
    The newly created or existing node.
  - setDeepContextNode
```
public ContextNode setDeepContextNode(XDIAddress contextNodeXDIAddress)
```
    Specified by:
    
    setDeepContextNode in interface Graph
  - setDeepLiteralNode
```
public LiteralNode setDeepLiteralNode(XDIAddress literalNodeXDIAddress)
```
    Specified by:
    
    setDeepLiteralNode in interface Graph
  - getDeepNode
```
public Node getDeepNode(XDIAddress nodeXDIAddress,
               boolean subgraph)
```
    Description copied from interface: Graph
    
    Returns a node at an arbitrary level of the graph.
    
    Specified by:
    
    getDeepNode in interface Graph
    
    Parameters:
    nodeXDIAddress - The relative address of the node.
    subgraph - This is simply a hint to the implementation whether child context nodes will subsequently be requested. Implementations may or may not actually use this parameter.
    
    Returns:
    The node with the given address, or null.
  - getDeepContextNode
```
public ContextNode getDeepContextNode(XDIAddress contextNodeXDIAddress,
                             boolean subgraph)
```
    Specified by:
    
    getDeepContextNode in interface Graph
  - getDeepLiteralNode
```
public LiteralNode getDeepLiteralNode(XDIAddress literalNodeXDIAddress,
                             boolean subgraph)
```
    Specified by:
    
    getDeepLiteralNode in interface Graph
  - getDeepNode
```
public Node getDeepNode(XDIAddress nodeXDIAddress)
```
    Description copied from interface: Graph
    
    Returns a node at an arbitrary level of the graph.
    
    Specified by:
    
    getDeepNode in interface Graph
    
    Parameters:
    nodeXDIAddress - The relative address of the node.
    
    Returns:
    The node with the given address, or null.
  - getDeepContextNode
```
public ContextNode getDeepContextNode(XDIAddress contextNodeXDIAddress)
```
    Specified by:
    
    getDeepContextNode in interface Graph
  - getDeepLiteralNode
```
public LiteralNode getDeepLiteralNode(XDIAddress literalNodeXDIAddress)
```
    Specified by:
    
    getDeepLiteralNode in interface Graph
  - setStatement
```
public Statement setStatement(XDIStatement XDIstatement)
```
    Description copied from interface: Graph
    
    Sets a statement in this graph.
    
    Specified by:
    
    setStatement in interface Graph
  - getStatement
```
public Statement getStatement(XDIStatement XDIstatement)
```
    Description copied from interface: Graph
    
    Gets a statement in this graph.
    
    Specified by:
    
    getStatement in interface Graph
  - containsStatement
```
public boolean containsStatement(XDIStatement XDIstatement)
```
    Description copied from interface: Graph
    
    Check if a statement exists in this graph.
    
    Specified by:
    
    containsStatement in interface Graph
  - getAllStatements
```
public ReadOnlyIterator<Statement> getAllStatements()
```
    Description copied from interface: Graph
    
    Gets all statements in this graph.
    
    Specified by:
    
    getAllStatements in interface Graph
    
    Returns:
    An iterator over statements.
  - getAllStatementCount
```
public long getAllStatementCount()
```
    Description copied from interface: Graph
    
    Returns the number of all statements in this graph.
    
    Specified by:
    
    getAllStatementCount in interface Graph
    
    Returns:
    The number of statements.
  - supportsTransactions
```
public boolean supportsTransactions()
```
    Description copied from interface: Graph
    
    Check if this graph supports transactions.
    
    Specified by:
    
    supportsTransactions in interface Graph
  - beginTransaction
```
public void beginTransaction()
```
    Description copied from interface: Graph
    
    Starts a new transaction.
    
    Specified by:
    
    beginTransaction in interface Graph
  - commitTransaction
```
public void commitTransaction()
```
    Description copied from interface: Graph
    
    Commits the changes made by the transaction.
    
    Specified by:
    
    commitTransaction in interface Graph
  - rollbackTransaction
```
public void rollbackTransaction()
```
    Description copied from interface: Graph
    
    Rolls back the changes made by the transaction.
    
    Specified by:
    
    rollbackTransaction in interface Graph
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - equals
```
public boolean equals(Object object)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - compareTo
```
public int compareTo(Graph other)
```
    Specified by:
    
    compareTo in interface Comparable<Graph>

Class AbstractGraph

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface xdi2.core.Graph

Constructor Detail

AbstractGraph

Method Detail

getGraphFactory

getIdentifier

getRootContextNode

clear

isEmpty

toString

toString

setDeepNode

setDeepContextNode

setDeepLiteralNode

getDeepNode

getDeepContextNode

getDeepLiteralNode

getDeepNode

getDeepContextNode

getDeepLiteralNode

setStatement

getStatement

containsStatement

getAllStatements

getAllStatementCount

supportsTransactions

beginTransaction

commitTransaction

rollbackTransaction

toString

equals

hashCode

compareTo