com.github.anno4j

Class Transaction

java.lang.Object

com.github.anno4j.Transaction

All Implemented Interfaces:

TransactionCommands

public class Transaction
extends Object
implements TransactionCommands

Constructor Summary

Constructors

Constructor and Description
Transaction(ObjectRepository objectRepository, LDPathEvaluatorConfiguration evaluatorConfiguration)

Method Summary

Methods

Modifier and Type	Method and Description
void	begin()
void	clearContext(String context) Removes all triples from the given context.
void	clearContext(org.openrdf.model.URI context) Removes all triples from the given context.
void	close()
void	commit() Commits the active transaction.
<T> T	createObject(Class<T> clazz)
<T> T	createObject(Class<T> clazz, org.openrdf.model.Resource id)
QueryService	createQueryService() Create query service
<T extends ResourceObject> List<T>	findAll(Class<T> type) Queries for all instances of the RDF class connected with the given class
<T extends ResourceObject> T	findByID(Class<T> type, String id)
<T extends ResourceObject> T	findByID(Class<T> type, org.openrdf.model.URI id)
ObjectConnection	getConnection()
org.openrdf.model.URI	getInsertContext()
org.openrdf.model.URI[]	getReadContexts()
org.openrdf.model.URI[]	getRemoveContexts()
boolean	isActive() Indicates if a transaction is currently active on the connection.
void	persist(ResourceObject resource) Writes the resource object to the configured SPARQL endpoint with a corresponding INSERT query.
void	rollback() Rolls back all updates in the active transaction.
void	setAllContexts(org.openrdf.model.URI context)
void	setInsertContext(org.openrdf.model.URI context)
void	setReadContexts(org.openrdf.model.URI... contexts)
void	setRemoveContexts(org.openrdf.model.URI... contexts)

Methods inherited from class java.lang.Object

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

Constructor Detail

Transaction

public Transaction(ObjectRepository objectRepository,
           LDPathEvaluatorConfiguration evaluatorConfiguration)
            throws org.openrdf.repository.RepositoryException

Throws:

org.openrdf.repository.RepositoryException

Method Detail

isActive

public boolean isActive()
                 throws org.openrdf.repository.RepositoryException

Indicates if a transaction is currently active on the connection. A transaction is active if begin() has been called, and becomes inactive after commit() or rollback() has been called.

Returns:

true iff a transaction is active, false iff no transaction is active.

Throws:

org.openrdf.repository.RepositoryException

begin

public void begin()
           throws org.openrdf.repository.RepositoryException

Throws:

org.openrdf.repository.RepositoryException

commit

public void commit()
            throws org.openrdf.repository.RepositoryException

Commits the active transaction. This operation ends the active transaction.

Throws:

org.openrdf.repository.RepositoryException

rollback

public void rollback()
              throws org.openrdf.repository.RepositoryException

Rolls back all updates in the active transaction. This operation ends the active transaction.

Throws:

org.openrdf.repository.RepositoryException

setReadContexts

public void setReadContexts(org.openrdf.model.URI... contexts)

setInsertContext

public void setInsertContext(org.openrdf.model.URI context)

setRemoveContexts

public void setRemoveContexts(org.openrdf.model.URI... contexts)

setAllContexts

public void setAllContexts(org.openrdf.model.URI context)

getReadContexts

public org.openrdf.model.URI[] getReadContexts()

getInsertContext

public org.openrdf.model.URI getInsertContext()

getRemoveContexts

public org.openrdf.model.URI[] getRemoveContexts()

persist

public void persist(ResourceObject resource)
             throws org.openrdf.repository.RepositoryException

Writes the resource object to the configured SPARQL endpoint with a corresponding INSERT query.

Specified by:

persist in interface TransactionCommands

Parameters:

resource - resource object to write to the SPARQL endpoint

Throws:

org.openrdf.repository.RepositoryException

findByID

public <T extends ResourceObject> T findByID(Class<T> type,
                                    String id)
                                  throws org.openrdf.repository.RepositoryException

Specified by:

findByID in interface TransactionCommands

Throws:

org.openrdf.repository.RepositoryException

findByID

public <T extends ResourceObject> T findByID(Class<T> type,
                                    org.openrdf.model.URI id)
                                  throws org.openrdf.repository.RepositoryException

Specified by:

findByID in interface TransactionCommands

Throws:

org.openrdf.repository.RepositoryException

clearContext

public void clearContext(org.openrdf.model.URI context)
                  throws org.openrdf.repository.RepositoryException

Removes all triples from the given context.

Specified by:

clearContext in interface TransactionCommands

Parameters:

context - context to clear

Throws:

org.openrdf.repository.RepositoryException

clearContext

public void clearContext(String context)
                  throws org.openrdf.repository.RepositoryException

Removes all triples from the given context.

Specified by:

clearContext in interface TransactionCommands

Parameters:

context - context to clear

Throws:

org.openrdf.repository.RepositoryException

findAll

public <T extends ResourceObject> List<T> findAll(Class<T> type)
                                       throws org.openrdf.repository.RepositoryException

Queries for all instances of the RDF class connected with the given class

Specified by:

findAll in interface TransactionCommands

Parameters:

type - Class with connected RDF type

Returns:

All instances of the given RDF type

Throws:

org.openrdf.repository.RepositoryException

createQueryService

public QueryService createQueryService()

Create query service

Specified by:

createQueryService in interface TransactionCommands

Returns:

query service object for specified type

createObject

public <T> T createObject(Class<T> clazz)
               throws org.openrdf.repository.RepositoryException,
                      IllegalAccessException,
                      InstantiationException

Specified by:

createObject in interface TransactionCommands

Throws:

org.openrdf.repository.RepositoryException

IllegalAccessException

InstantiationException

createObject

public <T> T createObject(Class<T> clazz,
                 org.openrdf.model.Resource id)
               throws org.openrdf.repository.RepositoryException,
                      IllegalAccessException,
                      InstantiationException

Specified by:

createObject in interface TransactionCommands

Throws:

org.openrdf.repository.RepositoryException

IllegalAccessException

InstantiationException

close

public void close()
           throws org.openrdf.repository.RepositoryException

Throws:

org.openrdf.repository.RepositoryException

getConnection

public ObjectConnection getConnection()