com.franz.ag
Class BlankNode

java.lang.Object
  com.franz.ag.ValueObject
      com.franz.ag.ValueNode
          com.franz.ag.ResourceNode
              com.franz.ag.BlankNode

All Implemented Interfaces:

BNode, java.lang.Comparable, Resource, java.io.Serializable, Value

public class BlankNode

extends ResourceNode

implements BNode

This class represents an instance of a blank (anonymous) node in AllegroGraph.

There is no public constructor. Node instances are created by a call to the createBNode() methods in the AllegroGraph class.

See Also:

Serialized Form

Method Summary

boolean	equals(java.lang.Object other) Implement equality for BlankNode instances.
java.lang.String	getID() Retrieve the identifying string of the BlankNode instance.
int	hashCode() Compute the hashcode of a BlankNode instance.
java.lang.String	toString() This method overrides the generic toString method.

Methods inherited from class com.franz.ag.ResourceNode

addProperty, getSubjectStatements

Methods inherited from class com.franz.ag.ValueNode

compareTo, getObjectStatements, queryAGId

Methods inherited from class com.franz.ag.ValueObject

compareTo

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.openrdf.model.Resource

addProperty, getSubjectStatements

Methods inherited from interface org.openrdf.model.Value

getObjectStatements

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

getID

public java.lang.String getID()

Retrieve the identifying string of the BlankNode instance.

This identifying string exists only in the Java application. AllegroGraph does not implement persistent labels in the triple store. The persisitent label of the BlankNode instance in the triple store is determined by the AllegroGraph implementation.

Specified by:

getID in interface BNode

Returns:

a bnode identifier

toString

public java.lang.String toString()

This method overrides the generic toString method. This method generates an output string of the form "<_:blanknnn>.

equals

public boolean equals(java.lang.Object other)

Implement equality for BlankNode instances.

Two BlankNode instances are equal if they have identical AllegroGraph part id numbers.

Otherwise, the string representations are compared.

hashCode

public int hashCode()

Compute the hashcode of a BlankNode instance.

The hashcode of a BlankNode instance is the hashcode of its string representation.