org.apache.jena.rdf.model.impl

Class ModelReifier

java.lang.Object

org.apache.jena.rdf.model.impl.ModelReifier

public class ModelReifier
extends Object

This class impedance-matches the reification requests of Model[Com] to the operations supplied by it's Graph's Reifier.

Constructor Summary

Constructors

Constructor and Description
ModelReifier(ModelCom model) establish the internal state of this ModelReifier: the associated Model[Com] and its graph's Reifier.

Method Summary

Modifier and Type	Method and Description
ReifiedStatement	createReifiedStatement(Statement s) Answer a fresh reification of a statement associated with a fresh bnode.
ReifiedStatement	createReifiedStatement(String uri, Statement s) Answer a reification of a statement with a given uri.
Resource	getAnyReifiedStatement(Statement s) Find any existing reified statement that reifies a givem statement.
boolean	isReified(FrontsTriple s) Answer true iff a given statement is reified in this model
RSIterator	listReifiedStatements() Answer an iterator that iterates over all the reified statements in this model.
RSIterator	listReifiedStatements(FrontsTriple s) Answer an iterator that iterates over all the reified statements in this model that reify a given statement.
void	noteIfReified(RDFNode s, RDFNode p, RDFNode o) the triple (s, p, o) has been asserted into the model.
void	removeAllReifications(FrontsTriple s) Remove all the reifications of a given statement in this model, whatever their associated resources.
void	removeReification(ReifiedStatement rs) Remove a given reification from this model.

Methods inherited from class java.lang.Object

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

Constructor Detail

ModelReifier

public ModelReifier(ModelCom model)

establish the internal state of this ModelReifier: the associated Model[Com] and its graph's Reifier.

Method Detail

createReifiedStatement

public ReifiedStatement createReifiedStatement(Statement s)

Answer a fresh reification of a statement associated with a fresh bnode.

Parameters:

s - a Statement to reifiy

Returns:

a reified statement object who's name is a new bnode

createReifiedStatement

public ReifiedStatement createReifiedStatement(String uri,
                                               Statement s)

Answer a reification of a statement with a given uri. If that uri already reifies a distinct Statement, throw an AlreadyReifiedException.

Parameters:

uri - the URI of the resource which will reify s

s - the Statement to reify

Returns:

a reified statement object associating uri with s.

Throws:

AlreadyReifiedException - if uri already reifies something else.

getAnyReifiedStatement

public Resource getAnyReifiedStatement(Statement s)

Find any existing reified statement that reifies a givem statement. If there isn't one, create one.

Parameters:

s - a Statement for which to find [or create] a reification

Returns:

a reification for s, re-using an existing one if possible

isReified

public boolean isReified(FrontsTriple s)

Answer true iff a given statement is reified in this model

Parameters:

s - the statement for which a reification is sought

Returns:

true iff s has a reification in this model

removeAllReifications

public void removeAllReifications(FrontsTriple s)

Remove all the reifications of a given statement in this model, whatever their associated resources.

Parameters:

s - the statement whose reifications are to be removed

removeReification

public void removeReification(ReifiedStatement rs)

Remove a given reification from this model. Other reifications of the same statement are untouched.

Parameters:

rs - the reified statement to be removed

listReifiedStatements

public RSIterator listReifiedStatements()

Answer an iterator that iterates over all the reified statements in this model.

Returns:

an iterator over all the reifications of the model.

listReifiedStatements

public RSIterator listReifiedStatements(FrontsTriple s)

Answer an iterator that iterates over all the reified statements in this model that reify a given statement.

Parameters:

s - the statement whose reifications are sought.

Returns:

an iterator over the reifications of s.

noteIfReified

public void noteIfReified(RDFNode s,
                          RDFNode p,
                          RDFNode o)

the triple (s, p, o) has been asserted into the model. Any reified statements among them need to be added to this model.