com.bigdata.rdf.model

Class BigdataBNodeImpl

java.lang.Object

com.bigdata.rdf.model.BigdataValueImpl

com.bigdata.rdf.model.BigdataResourceImpl

com.bigdata.rdf.model.BigdataBNodeImpl

All Implemented Interfaces:

IElement, BigdataBNode, BigdataResource, BigdataValue, Serializable, org.openrdf.model.BNode, org.openrdf.model.Resource, org.openrdf.model.Value

public class BigdataBNodeImpl
extends BigdataResourceImpl
implements BigdataBNode

A blank node. Use BigdataValueFactory to create instances of this class.

Note: When AbstractTripleStore.Options#STATEMENT_IDENTIFIERS is enabled blank nodes in the context position of a statement are recognized as statement identifiers by StatementBuffer. It coordinates with this class in order to detect when a blank node is a statement identifier and to defer the assertion of statements made using a statement identifier until that statement identifier becomes defined by being paired with a statement.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Field Summary

Fields inherited from class com.bigdata.rdf.model.BigdataValueImpl

iv

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(org.openrdf.model.BNode o)
boolean	equals(Object o)
String	getID()
IV	getIV() Return the internal value for this value.
BigdataStatement	getStatement() Return the statement modeled by this blank node.
int	hashCode()
boolean	isStatementIdentifier() true if this blank node models a statement.
void	setStatement(BigdataStatement sid) Marks this as a blank node which models the specified statement.
void	setStatementIdentifier(boolean isStmtIdentifier) Set flag indicating that this blank node models a statement.
String	stringValue()
String	toString()

Methods inherited from class com.bigdata.rdf.model.BigdataValueImpl

clearInternalValue, get, getValueFactory, isRealIV, setIV

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.bigdata.rdf.model.BigdataValue

clearInternalValue, getValueFactory, isRealIV, setIV

Methods inherited from interface com.bigdata.bop.IElement

get

Method Detail

getIV

public IV getIV()

Description copied from interface: BigdataValue

Return the internal value for this value. May be a term identifier or an inline value. The term identifier uniquely identifies a Value for a database. Sometimes a TempTripleStore will be used that shares the lexicon with a given database, in which case the same term identifiers will be value for that TempTripleStore.

Specified by:

getIV in interface BigdataValue

Overrides:

getIV in class BigdataValueImpl

toString

public String toString()

Overrides:

toString in class Object

stringValue

public String stringValue()

Specified by:

stringValue in interface org.openrdf.model.Value

equals

public final boolean equals(Object o)

Specified by:

equals in interface org.openrdf.model.BNode

Overrides:

equals in class Object

equals

public final boolean equals(org.openrdf.model.BNode o)

hashCode

public final int hashCode()

Specified by:

hashCode in interface org.openrdf.model.BNode

Overrides:

hashCode in class Object

getID

public final String getID()

Specified by:

getID in interface org.openrdf.model.BNode

setStatementIdentifier

public final void setStatementIdentifier(boolean isStmtIdentifier)

Description copied from interface: BigdataBNode

Set flag indicating that this blank node models a statement.

Specified by:

setStatementIdentifier in interface BigdataBNode

isStatementIdentifier

public final boolean isStatementIdentifier()

Description copied from interface: BigdataBNode

true if this blank node models a statement.

Specified by:

isStatementIdentifier in interface BigdataBNode

setStatement

public final void setStatement(BigdataStatement sid)

Marks this as a blank node which models the specified statement.

Specified by:

setStatement in interface BigdataBNode

Parameters:

sid - The statement.

getStatement

public final BigdataStatement getStatement()

Return the statement modeled by this blank node.

Specified by:

getStatement in interface BigdataBNode