eu.larkc.core.data
Class RdfStoreConnectionImpl

java.lang.Object
  eu.larkc.core.query.LocalStoreSPARQLService
      eu.larkc.core.data.RdfStoreConnectionImpl

All Implemented Interfaces:

RdfStoreConnection, SPARQLEndpoint

public class RdfStoreConnectionImpl
extends LocalStoreSPARQLService
implements RdfStoreConnection

RdfStoreConnectionImpl is class to implement a connection to local RDF repository.

Author:

vassil

Constructor Summary

RdfStoreConnectionImpl(com.ontotext.ordi.tripleset.TConnection con)
Constructor

Method Summary

org.openrdf.model.Statement	addStatement(org.openrdf.model.Resource subj, org.openrdf.model.URI pred, org.openrdf.model.Value obj, org.openrdf.model.URI graph) Adds a new statement.
org.openrdf.model.Statement	addStatement(org.openrdf.model.Resource subj, org.openrdf.model.URI pred, org.openrdf.model.Value obj, org.openrdf.model.URI graph, org.openrdf.model.URI... label) Adds a new statement and associated it with a collection of labels.
boolean	associateStatements(org.openrdf.model.Resource subj, org.openrdf.model.URI pred, org.openrdf.model.Value obj, org.openrdf.model.URI graph, org.openrdf.model.URI... labels) Associates a statements with a labeled group.
boolean	associateStatements(SPARQLQuery query, org.openrdf.model.URI... ts) Associates the statements result of SPARQL CONSTRUCT or DESCRIBE query to a labeled group.
void	close() Closes the connection and free all allocated resources.
LabelledGroupOfStatements	createLabelledGroupOfStatements() Creates a handle to a labeled group of statements with random name.
LabelledGroupOfStatements	createLabelledGroupOfStatements(org.openrdf.model.URI label) Creates a handle to a labeled group of statements.
boolean	deassociateStatements(org.openrdf.model.Resource subj, org.openrdf.model.URI pred, org.openrdf.model.Value obj, org.openrdf.model.URI graph, org.openrdf.model.URI label) Deassociates one or more statements from a labeled group.
org.openrdf.model.ValueFactory	getValueFactory() Get a factory to create values.
boolean	isClosed() Verifies if the current connection is closed.
int	removeStatement(org.openrdf.model.Resource subj, org.openrdf.model.URI pred, org.openrdf.model.Value obj, org.openrdf.model.URI graph) Removes statements from the RDF store.
CloseableIterator<org.openrdf.model.Statement>	search(org.openrdf.model.Resource subj, org.openrdf.model.URI pred, org.openrdf.model.Value obj, org.openrdf.model.URI graph, org.openrdf.model.URI label) Creates a statement iterator based on simple pattern matching .

Methods inherited from class eu.larkc.core.query.LocalStoreSPARQLService

createDataSet, createRdfGraph, executeAsk, executeConstruct, executeSelect

Methods inherited from class java.lang.Object

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

Methods inherited from interface eu.larkc.core.data.SPARQLEndpoint

createDataSet, createRdfGraph, executeAsk, executeConstruct, executeSelect

Constructor Detail

RdfStoreConnectionImpl

public RdfStoreConnectionImpl(com.ontotext.ordi.tripleset.TConnection con)

Constructor

Parameters:

con - is local ORDI connection

Method Detail

addStatement

public org.openrdf.model.Statement addStatement(org.openrdf.model.Resource subj,
                                                org.openrdf.model.URI pred,
                                                org.openrdf.model.Value obj,
                                                org.openrdf.model.URI graph)

Description copied from interface: RdfStoreConnection

Adds a new statement.

Specified by:

addStatement in interface RdfStoreConnection

Returns:

the newly added statement to the store

addStatement

public org.openrdf.model.Statement addStatement(org.openrdf.model.Resource subj,
                                                org.openrdf.model.URI pred,
                                                org.openrdf.model.Value obj,
                                                org.openrdf.model.URI graph,
                                                org.openrdf.model.URI... label)

Description copied from interface: RdfStoreConnection

Adds a new statement and associated it with a collection of labels.

Specified by:

addStatement in interface RdfStoreConnection

Returns:

the newly added statement to the store

associateStatements

public boolean associateStatements(org.openrdf.model.Resource subj,
                                   org.openrdf.model.URI pred,
                                   org.openrdf.model.Value obj,
                                   org.openrdf.model.URI graph,
                                   org.openrdf.model.URI... labels)

Description copied from interface: RdfStoreConnection

Associates a statements with a labeled group.

Specified by:

associateStatements in interface RdfStoreConnection

Parameters:

subj - is subject of the statement to be associated (may be null)

pred - is predicate of the statement to be associated (may be null)

obj - is object of the statement to be associated (may be null)

graph - is graph of the statement to be associated (may be null)

labels - is label of the group to be associated to

Returns:

true if the operation associated at least one statement

associateStatements

public boolean associateStatements(SPARQLQuery query,
                                   org.openrdf.model.URI... ts)

Description copied from interface: RdfStoreConnection

Associates the statements result of SPARQL CONSTRUCT or DESCRIBE query to a labeled group.

Specified by:

associateStatements in interface RdfStoreConnection

Parameters:

query - is construct or describe SPARQL query

ts - is label of the group

Returns:

true if the operation associated at least one statement

close

public void close()

Description copied from interface: RdfStoreConnection

Closes the connection and free all allocated resources. All subsequent operations will generate exception.

Specified by:

close in interface RdfStoreConnection

isClosed

public boolean isClosed()

Description copied from interface: RdfStoreConnection

Verifies if the current connection is closed.

Specified by:

isClosed in interface RdfStoreConnection

Returns:

true or false

createLabelledGroupOfStatements

public LabelledGroupOfStatements createLabelledGroupOfStatements(org.openrdf.model.URI label)

Description copied from interface: RdfStoreConnection

Creates a handle to a labeled group of statements.

Specified by:

createLabelledGroupOfStatements in interface RdfStoreConnection

Parameters:

label - to be used as name for the new group

Returns:

labeled group of statements

createLabelledGroupOfStatements

public LabelledGroupOfStatements createLabelledGroupOfStatements()

Description copied from interface: RdfStoreConnection

Creates a handle to a labeled group of statements with random name.

Specified by:

createLabelledGroupOfStatements in interface RdfStoreConnection

Returns:

label is a group of statements

deassociateStatements

public boolean deassociateStatements(org.openrdf.model.Resource subj,
                                     org.openrdf.model.URI pred,
                                     org.openrdf.model.Value obj,
                                     org.openrdf.model.URI graph,
                                     org.openrdf.model.URI label)

Description copied from interface: RdfStoreConnection

Deassociates one or more statements from a labeled group.

Specified by:

deassociateStatements in interface RdfStoreConnection

Parameters:

subj - is subject of the statement to be deassociated (may be null)

pred - is predicate of the statement to be deassociated (may be null)

obj - is object of the statement to be deassociated (may be null)

graph - is graph of the statement to be deassociated (may be null)

label - is label of the statement to be deassociated (may be null)

Returns:

true if the operation deassociated at least one statement

getValueFactory

public org.openrdf.model.ValueFactory getValueFactory()

Description copied from interface: RdfStoreConnection

Get a factory to create values.

Specified by:

getValueFactory in interface RdfStoreConnection

Returns:

value factory.

removeStatement

public int removeStatement(org.openrdf.model.Resource subj,
                           org.openrdf.model.URI pred,
                           org.openrdf.model.Value obj,
                           org.openrdf.model.URI graph)

Description copied from interface: RdfStoreConnection

Removes statements from the RDF store.

Specified by:

removeStatement in interface RdfStoreConnection

Parameters:

subj - is subject of the statement to be removed (may be null)

pred - is predicate of the statement to be removed (may be null)

obj - is object of the statement to be removed (may be null)

graph - is graph of the statement to be removed (may be null)

Returns:

the number of removed statements

search

public CloseableIterator<org.openrdf.model.Statement> search(org.openrdf.model.Resource subj,
                                                             org.openrdf.model.URI pred,
                                                             org.openrdf.model.Value obj,
                                                             org.openrdf.model.URI graph,
                                                             org.openrdf.model.URI label)

Description copied from interface: RdfStoreConnection

Creates a statement iterator based on simple pattern matching .

Specified by:

search in interface RdfStoreConnection

Parameters:

subj - is subject of the statements to be matched (may be null)

pred - is predicate of the statements to be matched (may be null)

obj - is object of the statements to be matched (may be null)

graph - is graph of the statements to be matched (may be null)

label - is label of the statements to be matched (may be null)

Returns:

closeable statement iterator