org.eclipse.rdf4j.model

Interface BNode

All Superinterfaces:

Resource, Serializable, Value

All Known Implementing Classes:

AbstractBNode, BNodeImpl, MemBNode, NativeBNode, SimpleBNode

public interface BNode
extends Resource

An RDF-1.1 blank node (aka bnode, aka anonymous node). A blank node has an identifier to be able to compare it to other blank nodes internally. Please note that, conceptually, blank node equality can only be determined by examining the statements that refer to them.

See Also:

RDF-1.1 Concepts and Abstract Syntax

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o) Compares this blank node to another object.
String	getID() Retrieves this blank node's identifier.
int	hashCode() Computes the hash code of this blank node.
default boolean	isBNode() Check if the object is an instance of the given type.

Methods inherited from interface org.eclipse.rdf4j.model.Resource

isResource

Methods inherited from interface org.eclipse.rdf4j.model.Value

isIRI, isLiteral, isTriple, stringValue

Method Detail

isBNode

default boolean isBNode()

Description copied from interface: Value

Check if the object is an instance of the given type. Typically 2x than using instanceof. For implementers: This default implementation is overridden in the repsective sub-interface.

Specified by:

isBNode in interface Value

Returns:

true if instance of BNode

getID

String getID()

Retrieves this blank node's identifier.

Returns:

A blank node identifier.

equals

boolean equals(Object o)

Compares this blank node to another object.

Overrides:

equals in class Object

Parameters:

o - the object to compare this blank node to

Returns:

true, if the other object is an instance of BNode and their IDs are equal; false, otherwise.

hashCode

int hashCode()

Computes the hash code of this blank node.

Overrides:

hashCode in class Object

Returns:

a hash code for this blank node computed as getID().hashCode()