ambit2.rest.rdf.sparql

Class RDFSparqlIterator<Item>

java.lang.Object

ambit2.rest.rdf.sparql.RDFSparqlIterator<Item>

Type Parameters:

Item -

All Implemented Interfaces:

Iterator<Item>

Direct Known Subclasses:

RDFAbstractCompoundIterator, RDFAbstractFeatureIterator, RDFAbstractFeatureIterator

public abstract class RDFSparqlIterator<Item>
extends Object
implements Iterator<Item>

Abstract class to iterate over OpenTox objects in RDF model. Constructors, reading external sources (stream, representation, url) assume Jena -supported RDF mime types. application/rdf+xml is the default.

Author:

nina

Field Summary

Fields

Modifier and Type	Field and Description
protected org.restlet.data.Reference	baseReference
protected com.hp.hpl.jena.rdf.model.Model	jenaModel
protected Item	nextRecord
protected com.hp.hpl.jena.rdf.model.RDFNode	nextRecordNode
protected com.hp.hpl.jena.query.QueryExecution	qe
protected Item	record
protected String	recordIDVar
protected com.hp.hpl.jena.rdf.model.RDFNode	recordNode
protected org.restlet.data.Reference	reference
protected String	referer
protected com.hp.hpl.jena.query.ResultSet	resultSet

Constructor Summary

Constructors

Constructor and Description
RDFSparqlIterator(InputStream in, org.restlet.data.MediaType mediaType, String sparql) OpenTox object iterator over input stream
RDFSparqlIterator(com.hp.hpl.jena.rdf.model.Model model, String sparql) Allows to initialize the iterator over existing model
RDFSparqlIterator(org.restlet.data.Reference reference, org.restlet.data.MediaType mediaType, String sparql, String referer) OpenTox object iterator - reads RDF representation , given a reference ad mime type
RDFSparqlIterator(org.restlet.data.Reference reference, String sparql, String referer) OpenTox object iterator - reads RDF, assumes application/rdf+xml
RDFSparqlIterator(org.restlet.representation.Representation representation, org.restlet.data.MediaType mediaType, String sparql, String referer) OpenTox object iterator - reads restlet representation

Method Summary

Modifier and Type	Method and Description
void	close()
protected void	finalize()
org.restlet.data.Reference	getBaseReference()
com.hp.hpl.jena.rdf.model.Model	getJenaModel()
protected com.hp.hpl.jena.rdf.model.RDFNode	getRecordURI(com.hp.hpl.jena.query.QuerySolution querySolution) This is considered record ID
boolean	hasNext()
protected boolean	isSameRecord(com.hp.hpl.jena.query.QuerySolution querySolution)
Item	next()
protected abstract Item	parse(com.hp.hpl.jena.query.QuerySolution querySolution, Item record)
void	remove() Not supported
void	setBaseReference(org.restlet.data.Reference baseReference)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

jenaModel

protected com.hp.hpl.jena.rdf.model.Model jenaModel

reference

protected org.restlet.data.Reference reference

baseReference

protected org.restlet.data.Reference baseReference

resultSet

protected com.hp.hpl.jena.query.ResultSet resultSet

qe

protected com.hp.hpl.jena.query.QueryExecution qe

recordIDVar

protected String recordIDVar

recordNode

protected com.hp.hpl.jena.rdf.model.RDFNode recordNode

record

protected Item record

nextRecord

protected Item nextRecord

nextRecordNode

protected com.hp.hpl.jena.rdf.model.RDFNode nextRecordNode

referer

protected String referer

Constructor Detail

RDFSparqlIterator

public RDFSparqlIterator(org.restlet.representation.Representation representation,
                         org.restlet.data.MediaType mediaType,
                         String sparql,
                         String referer)
                  throws org.restlet.resource.ResourceException

OpenTox object iterator - reads restlet representation

Parameters:

representation -

mediaType -

sparql -

Throws:

org.restlet.resource.ResourceException

RDFSparqlIterator

public RDFSparqlIterator(org.restlet.data.Reference reference,
                         String sparql,
                         String referer)
                  throws org.restlet.resource.ResourceException,
                         MalformedURLException,
                         IOException

OpenTox object iterator - reads RDF, assumes application/rdf+xml

Parameters:

reference -

sparql -

Throws:

org.restlet.resource.ResourceException

MalformedURLException

IOException

RDFSparqlIterator

public RDFSparqlIterator(org.restlet.data.Reference reference,
                         org.restlet.data.MediaType mediaType,
                         String sparql,
                         String referer)
                  throws org.restlet.resource.ResourceException,
                         MalformedURLException,
                         IOException

OpenTox object iterator - reads RDF representation , given a reference ad mime type

Parameters:

reference -

mediaType -

sparql -

Throws:

org.restlet.resource.ResourceException

MalformedURLException

IOException

RDFSparqlIterator

public RDFSparqlIterator(InputStream in,
                         org.restlet.data.MediaType mediaType,
                         String sparql)
                  throws org.restlet.resource.ResourceException

OpenTox object iterator over input stream

Parameters:

in -

mediaType -

sparql -

Throws:

org.restlet.resource.ResourceException

RDFSparqlIterator

public RDFSparqlIterator(com.hp.hpl.jena.rdf.model.Model model,
                         String sparql)
                  throws org.restlet.resource.ResourceException

Allows to initialize the iterator over existing model

Parameters:

model -

sparql -

Throws:

org.restlet.resource.ResourceException

Method Detail

getBaseReference

public org.restlet.data.Reference getBaseReference()

setBaseReference

public void setBaseReference(org.restlet.data.Reference baseReference)

close

public void close()

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

getJenaModel

public com.hp.hpl.jena.rdf.model.Model getJenaModel()

remove

public void remove()

Not supported

Specified by:

remove in interface Iterator<Item>

parse

protected abstract Item parse(com.hp.hpl.jena.query.QuerySolution querySolution,
                              Item record)

getRecordURI

protected com.hp.hpl.jena.rdf.model.RDFNode getRecordURI(com.hp.hpl.jena.query.QuerySolution querySolution)

This is considered record ID

Parameters:

querySolution -

Returns:

isSameRecord

protected boolean isSameRecord(com.hp.hpl.jena.query.QuerySolution querySolution)

Parameters:

querySolution -

Returns:

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Item>

next

public Item next()

Specified by:

next in interface Iterator<Item>