Module org.apache.jena.tdb

Package org.apache.jena.tdb1.store.nodetable

Class NodeTableNative

java.lang.Object

org.apache.jena.tdb1.store.nodetable.NodeTableNative

All Implemented Interfaces:

org.apache.jena.atlas.lib.Closeable, org.apache.jena.atlas.lib.Sync, NodeTable

public class NodeTableNative
extends Object
implements NodeTable

A concrete NodeTable based on native storage (string file and an index)

Constructor Summary

Constructors

Constructor	Description
NodeTableNative(Index nodeToId, ObjectFile objectFile)

Method Summary

Modifier and Type	Method	Description
Iterator<org.apache.jena.atlas.lib.Pair<NodeId,org.apache.jena.graph.Node>>	all()	Iterate over all nodes (not necessarily fast).
NodeId	allocOffset()	The offset needed to predicate allocation difference between persistent tables - internal function
void	close()
boolean	containsNode(org.apache.jena.graph.Node node)	Test whether the node table contains an entry for node
boolean	containsNodeId(NodeId nodeId)	Test whether the node table contains an entry for node
NodeId	getAllocateNodeId(org.apache.jena.graph.Node node)	Find the NodeId for a node, allocating a new NodeId if the Node does not yet have a NodeId
Index	getIndex()
org.apache.jena.graph.Node	getNodeForNodeId(NodeId id)	Get the Node for this NodeId, or null if none
NodeId	getNodeIdForNode(org.apache.jena.graph.Node node)	Find the NodeId for a node, or return NodeId.NodeDoesNotExist
ObjectFile	getObjects()
boolean	isEmpty()	Anything there?
void	sync()
String	toString()
NodeTable	wrapped()	Return a NodeTable if this instance wraps another, else return null

Methods inherited from class java.lang.Object

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

Constructor Details

NodeTableNative

public NodeTableNative(Index nodeToId,
 ObjectFile objectFile)

Method Details

getNodeForNodeId

public org.apache.jena.graph.Node getNodeForNodeId(NodeId id)

Get the Node for this NodeId, or null if none

Specified by:

getNodeForNodeId in interface NodeTable

getNodeIdForNode

public NodeId getNodeIdForNode(org.apache.jena.graph.Node node)

Find the NodeId for a node, or return NodeId.NodeDoesNotExist

Specified by:

getNodeIdForNode in interface NodeTable

getAllocateNodeId

public NodeId getAllocateNodeId(org.apache.jena.graph.Node node)

Find the NodeId for a node, allocating a new NodeId if the Node does not yet have a NodeId

Specified by:

getAllocateNodeId in interface NodeTable

containsNode

public boolean containsNode(org.apache.jena.graph.Node node)

Description copied from interface: NodeTable

Test whether the node table contains an entry for node

Specified by:

containsNode in interface NodeTable

containsNodeId

public boolean containsNodeId(NodeId nodeId)

Description copied from interface: NodeTable

Test whether the node table contains an entry for node

Specified by:

containsNodeId in interface NodeTable

close

public void close()

Specified by:

close in interface org.apache.jena.atlas.lib.Closeable

allocOffset

public NodeId allocOffset()

Description copied from interface: NodeTable

The offset needed to predicate allocation difference between persistent tables - internal function

Specified by:

allocOffset in interface NodeTable

all

public Iterator<org.apache.jena.atlas.lib.Pair<NodeId,org.apache.jena.graph.Node>> all()

Description copied from interface: NodeTable

Iterate over all nodes (not necessarily fast). Does not include inlined NodeIds

Specified by:

all in interface NodeTable

sync

public void sync()

Specified by:

sync in interface org.apache.jena.atlas.lib.Sync

getObjects

public ObjectFile getObjects()

getIndex

public Index getIndex()

toString

public String toString()

Overrides:

toString in class Object

isEmpty

public boolean isEmpty()

Description copied from interface: NodeTable

Anything there?

Specified by:

isEmpty in interface NodeTable

wrapped

public NodeTable wrapped()

Description copied from interface: NodeTable

Return a NodeTable if this instance wraps another, else return null

Specified by:

wrapped in interface NodeTable