Package org.topbraid.jenax.util

Class FromDataset

java.lang.Object

org.topbraid.jenax.util.DelegatingDataset

org.topbraid.jenax.util.FromDataset

All Implemented Interfaces:

org.apache.jena.query.Dataset, org.apache.jena.sparql.core.Transactional

public class FromDataset
extends DelegatingDataset

A Dataset that wraps another Dataset but changes its default and named graphs based on the FROM and FROM NAMED clauses of a given Query.

Author:

Holger Knublauch

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.jena.sparql.core.Transactional

org.apache.jena.sparql.core.Transactional.Promote

Constructor Summary

Constructors

Constructor	Description
FromDataset(org.apache.jena.query.Dataset delegate, org.apache.jena.query.Query query)

Method Summary

Modifier and Type	Method	Description
boolean	containsNamedModel(String uri)
org.apache.jena.rdf.model.Model	getDefaultModel()
boolean	isEmpty()
Iterator<String>	listNames()

Methods inherited from class org.topbraid.jenax.util.DelegatingDataset

abort, addNamedModel, asDatasetGraph, begin, begin, close, commit, end, getContext, getDelegate, getLock, getNamedModel, getUnionModel, isInTransaction, promote, removeNamedModel, replaceNamedModel, setDefaultModel, supportsTransactionAbort, supportsTransactions, transactionMode, transactionType

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.query.Dataset

getPrefixMapping

Methods inherited from interface org.apache.jena.sparql.core.Transactional

begin, calc, calculate, calculateRead, calculateWrite, exec, execute, executeRead, executeWrite, promote

Constructor Detail

FromDataset

public FromDataset(org.apache.jena.query.Dataset delegate,
                   org.apache.jena.query.Query query)
            throws GraphNotFoundException

Throws:

GraphNotFoundException

Method Detail

containsNamedModel

public boolean containsNamedModel(String uri)

Specified by:

containsNamedModel in interface org.apache.jena.query.Dataset

Overrides:

containsNamedModel in class DelegatingDataset

getDefaultModel

public org.apache.jena.rdf.model.Model getDefaultModel()

Specified by:

getDefaultModel in interface org.apache.jena.query.Dataset

Overrides:

getDefaultModel in class DelegatingDataset

listNames

public Iterator<String> listNames()

Specified by:

listNames in interface org.apache.jena.query.Dataset

Overrides:

listNames in class DelegatingDataset

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface org.apache.jena.query.Dataset

Overrides:

isEmpty in class DelegatingDataset