eu.larkc.core.data
Class DataFactoryImpl

java.lang.Object
  eu.larkc.core.data.DataFactoryImpl

All Implemented Interfaces:

DataFactory

public class DataFactoryImpl
extends java.lang.Object
implements DataFactory

This is a dummy factory to abstract ORDI creation specifics.

Author:

vassil

Field Summary

static long	REFERENCE_TYPES_CACHE_TIME
static java.lang.String	REFERENCE_TYPES_CACHE_TIME_PROP

Fields inherited from interface eu.larkc.core.data.DataFactory

INSTANCE, LARKC_NS

Method Summary

AttributeValueMap	createAttributeValueList(SetOfStatements rdf) TODO Describe the purpose of this method.
AttributeValueMap	createAttributeValueList(SetOfStatements rdf, org.openrdf.model.URI invocationID) ------ Methods to handle arguments as Attribute/value lists.
RdfGraph	createRdfGraph(java.lang.Iterable<org.openrdf.model.Statement> sts, org.openrdf.model.URI graph) Creates a RDF graph that will be passed by value.
RdfGraph	createRdfGraph(SetOfStatements rdf) NEW METHODS
RdfGraph	createRdfGraph(SetOfStatements rdf, org.openrdf.model.URI invocationID) Create RdfGraph from RDF data.
RdfStoreConnection	createRdfStoreConnection() Creates a connection to local storage.
RdfGraph	createRemoteRdfGraph(org.openrdf.model.URI uri) Creates RDF graph from a remote location.
SPARQLEndpoint	createSPARQLEndpoint(org.openrdf.model.URI uri) Create a connection to remote SPARQL endpoint.
SPARQLQuery	createSPARQLQuery(SetOfStatements rdf) Create SPARQLQuery from RDF data.
SPARQLQuery	createSPARQLQuery(SetOfStatements rdf, org.openrdf.model.URI invocationID) Create SPARQLQuery from RDF data.
SPARQLQuery	createSPARQLQuery(java.lang.String query) Create a SPARQL query from a string
SPARQLQuery	createSPARQLQuery(java.lang.String query, java.lang.String ns, org.openrdf.model.URI label) Creates a SPARQL query from a string to be executed against a specific labeled group.
SPARQLQuery	createSPARQLQuery(java.lang.String query, org.openrdf.model.URI label) Creates a SPARQL query from a string to be executed against a specific labeled group.
VariableBinding	createVariableBinding(SetOfStatements rdf) TODO Describe the purpose of this method.
VariableBinding	createVariableBinding(SetOfStatements rdf, org.openrdf.model.URI invocationID) TODO Describe the purpose of this method.
VariableBindingBase	createVariableBindingBase(SetOfStatements sts) TODO Gets VariableBindings for the SetOfStatements FIXME: This is using the cheating object store
static DataFactoryImpl	getInstance()
SetOfStatements	parseGraph(java.io.File file, java.lang.String nameSpace) TODO Describe the purpose of this method.
RdfGraph	setNamedGraph(SetOfStatements input, org.openrdf.model.URI newName) Sets the name of the graph for the given SetOfStatements.

Methods inherited from class java.lang.Object

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

Field Detail

REFERENCE_TYPES_CACHE_TIME_PROP

public static java.lang.String REFERENCE_TYPES_CACHE_TIME_PROP

REFERENCE_TYPES_CACHE_TIME

public static long REFERENCE_TYPES_CACHE_TIME

Method Detail

getInstance

public static DataFactoryImpl getInstance()

createVariableBindingBase

public VariableBindingBase createVariableBindingBase(SetOfStatements sts)

TODO Gets VariableBindings for the SetOfStatements FIXME: This is using the cheating object store

Parameters:

sts -

Returns:

createRdfGraph

public RdfGraph createRdfGraph(java.lang.Iterable<org.openrdf.model.Statement> sts,
                               org.openrdf.model.URI graph)

Creates a RDF graph that will be passed by value.

Specified by:

createRdfGraph in interface DataFactory

Parameters:

graph - name (may be null)

sts - collection of the statements

Returns:

the graph

createRemoteRdfGraph

public RdfGraph createRemoteRdfGraph(org.openrdf.model.URI uri)

Creates RDF graph from a remote location. If the URI could not be resolved an exception will be generated during the construction of the graph.

Specified by:

createRemoteRdfGraph in interface DataFactory

Parameters:

uri - to be resolved

Returns:

the constructed rdf graph

createRdfStoreConnection

public RdfStoreConnection createRdfStoreConnection()

Creates a connection to local storage.

Specified by:

createRdfStoreConnection in interface DataFactory

Returns:

a connection to the local store

createSPARQLEndpoint

public SPARQLEndpoint createSPARQLEndpoint(org.openrdf.model.URI uri)

Create a connection to remote SPARQL endpoint. If the URI is not resolvable or SPARQL enabled service could not be found an exception will be generated after constructing the object.

Specified by:

createSPARQLEndpoint in interface DataFactory

Parameters:

uri -

Returns:

createSPARQLQuery

public SPARQLQuery createSPARQLQuery(java.lang.String query)

Description copied from interface: DataFactory

Create a SPARQL query from a string

Specified by:

createSPARQLQuery in interface DataFactory

Parameters:

query - to be parsed

Returns:

executable query by a SPARQL endpoint

createSPARQLQuery

public SPARQLQuery createSPARQLQuery(java.lang.String query,
                                     org.openrdf.model.URI label)

Description copied from interface: DataFactory

Creates a SPARQL query from a string to be executed against a specific labeled group. The labeled group for now could not be specified as part of the syntax like the dataset in FROM/FROM NAMED clauses.

Specified by:

createSPARQLQuery in interface DataFactory

Parameters:

query - to be parsed

label - labeled group to be used (may be null)

Returns:

executable query by a SPARQL endpoint

createSPARQLQuery

public SPARQLQuery createSPARQLQuery(java.lang.String query,
                                     java.lang.String ns,
                                     org.openrdf.model.URI label)

Description copied from interface: DataFactory

Creates a SPARQL query from a string to be executed against a specific labeled group. The labeled group for now could not be specified as part of the syntax like the dataset in FROM/FROM NAMED clauses.

Specified by:

createSPARQLQuery in interface DataFactory

Parameters:

query - to be parsed

ns - default namespace to be used in the expansion of the short qname in query

label - labeled group to be used (may be null)

Returns:

executable query by a SPARQL endpoint

createRdfGraph

public RdfGraph createRdfGraph(SetOfStatements rdf)

NEW METHODS

Specified by:

createRdfGraph in interface DataFactory

Returns:

null or the RdfGraph

createRdfGraph

public RdfGraph createRdfGraph(SetOfStatements rdf,
                               org.openrdf.model.URI invocationID)

Description copied from interface: DataFactory

Create RdfGraph from RDF data.

Specified by:

createRdfGraph in interface DataFactory

Returns:

null or the RdfGraph

createSPARQLQuery

public SPARQLQuery createSPARQLQuery(SetOfStatements rdf)

Description copied from interface: DataFactory

Create SPARQLQuery from RDF data.

Specified by:

createSPARQLQuery in interface DataFactory

Returns:

null or the SPARQLQuery

createSPARQLQuery

public SPARQLQuery createSPARQLQuery(SetOfStatements rdf,
                                     org.openrdf.model.URI invocationID)

Description copied from interface: DataFactory

Create SPARQLQuery from RDF data.

Specified by:

createSPARQLQuery in interface DataFactory

Returns:

null or the SPARQLQuery

createAttributeValueList

public AttributeValueMap createAttributeValueList(SetOfStatements rdf,
                                                  org.openrdf.model.URI invocationID)

------ Methods to handle arguments as Attribute/value lists. TODO: They are slightly evil from a KR perspective.

Specified by:

createAttributeValueList in interface DataFactory

Returns:

null or AttributeValueMap

createAttributeValueList

public AttributeValueMap createAttributeValueList(SetOfStatements rdf)

Description copied from interface: DataFactory

TODO Describe the purpose of this method.

Specified by:

createAttributeValueList in interface DataFactory

Returns:

null or AttributeValueMap

createVariableBinding

public VariableBinding createVariableBinding(SetOfStatements rdf)

Description copied from interface: DataFactory

TODO Describe the purpose of this method.

Specified by:

createVariableBinding in interface DataFactory

Returns:

null or variable binding

createVariableBinding

public VariableBinding createVariableBinding(SetOfStatements rdf,
                                             org.openrdf.model.URI invocationID)

Description copied from interface: DataFactory

TODO Describe the purpose of this method.

Specified by:

createVariableBinding in interface DataFactory

Returns:

null or variable binding

setNamedGraph

public RdfGraph setNamedGraph(SetOfStatements input,
                              org.openrdf.model.URI newName)

Description copied from interface: DataFactory

Sets the name of the graph for the given SetOfStatements. Old values are overwritten

Specified by:

setNamedGraph in interface DataFactory

Returns:

a graph with the given name and data

parseGraph

public SetOfStatements parseGraph(java.io.File file,
                                  java.lang.String nameSpace)
                           throws org.openrdf.rio.RDFParseException,
                                  org.openrdf.rio.RDFHandlerException,
                                  java.io.FileNotFoundException,
                                  java.io.IOException

Description copied from interface: DataFactory

TODO Describe the purpose of this method.

Specified by:

parseGraph in interface DataFactory

Returns:

Throws:

org.openrdf.rio.RDFParseException

org.openrdf.rio.RDFHandlerException

java.io.FileNotFoundException

java.io.IOException