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Java Source Code / Java Documentation » Database ORM » ORBroker » net.sourceforge.orbroker

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

net.sourceforge.orbroker .BrokerConnection

net.sourceforge.orbroker .QueryableConnection

net.sourceforge.orbroker .ExecutableConnection

net.sourceforge.orbroker .Transaction

Transaction
final public class Transaction extends ExecutableConnection (Code)
	Any database modifications (INSERT, UPDATE, DELETE) must be done through the Transaction object. It wraps a java.sql.Connection Connection object, and like a Query instance, Transaction.close() must be called after use (in a `finally` block), to avoid connection pool leaks. A transaction using an isolation level of java.sql.Connection.TRANSACTION_NONE is considered non-transactional and will have auto-commit enabled. This makes it illegal to call either Transaction.commit() or Transaction.rollback() . All other isolation levels require a call to Transaction.commit() method for the transaction to commit. author: Nils Kilden-Pedersen See Also: net.sourceforge.orbroker.Broker.startTransaction See Also: net.sourceforge.orbroker.Broker.startTransaction(int)

Constructor Summary
	Transaction(Broker broker, Integer isolationLevel)

Method Summary
public void	close() Close transaction.
public void	commit() Commit the transaction.
protected String	getClosedConnectionMessage()
protected String	getFinalizeWarning()
protected void	markTransactionStarted()
public Executable	obtainExecutable() Obtain an Executable that uses this Transaction's connection.
public void	rollback() Roll back the transaction.
protected void	setConnectionProperties()
protected boolean	shouldConnectionClose()

Constructor Detail

Transaction
Transaction(Broker broker, Integer isolationLevel) throws BrokerException(Code)

Method Detail

close
public void close()(Code)
	Close transaction. If Transaction has not been explicity committed or rolled back, it will automatically be rolled back on close. This can simplify code by automatically rolling back on close: Transaction txn = broker.startTransaction(); try { txn.setParameter("account", account); txn.execute("updateAccount"); txn.commit(); ] finally { txn.close(); } There is no need to issue a rollback. If commit() is not called due to an exception, rollback is done automatically. This is assuming that the transaction is in isolation level other than Connection.TRANSACTION_NONE .

commit
public void commit() throws BrokerException, ConstraintException, DeadlockException(Code)
	Commit the transaction. This method cannot be called if isolation level is Connection.TRANSACTION_NONE . throws: BrokerException - throws: ConstraintException - throws: DeadlockException - See Also: Transaction.rollback()

getClosedConnectionMessage
protected String getClosedConnectionMessage()(Code)
	See Also: net.sourceforge.orbroker.QueryableConnection.getClosedConnectionMessage

getFinalizeWarning
protected String getFinalizeWarning()(Code)
	See Also: net.sourceforge.orbroker.QueryableConnection.getFinalizeWarning

markTransactionStarted
protected void markTransactionStarted()(Code)
	See Also: net.sourceforge.orbroker.ExecutableConnection.markTransactionStarted

obtainExecutable
public Executable obtainExecutable()(Code)
	Obtain an Executable that uses this Transaction's connection. This class provides safe semantics for other methods that need to take part in the transaction, without exposing commit or rollback capabilities. The Executable will be automatically released and invalidated when Transaction is closed. Executable See Also: Transaction.close() See Also: Broker.obtainExecutable(Connection)

rollback
public void rollback() throws BrokerException(Code)
	Roll back the transaction. If rollback() is not called on an exception, it will be done automatically on Transaction.close() (provided that Transaction.close() method is called in a `finally` block as it always should). This method cannot be called if isolation level is Connection.TRANSACTION_NONE . throws: BrokerException - See Also: Transaction.commit()

setConnectionProperties
protected void setConnectionProperties() throws SQLException(Code)
	See Also: net.sourceforge.orbroker.QueryableConnection.setConnectionProperties

shouldConnectionClose
protected boolean shouldConnectionClose()(Code)
	See Also: net.sourceforge.orbroker.BrokerConnection.shouldConnectionClose

Methods inherited from net.sourceforge.orbroker.ExecutableConnection

public int execute(String statementID) throws BrokerException, ConstraintException, DeadlockException(Code)(Java Doc)
public int executeBatch(String statementID, String batchParameterName, Collection batchParameters) throws BrokerException, ConstraintException, DeadlockException(Code)(Java Doc)
public int[] executeBatch(String statementID, String batchParameterName, Object[] batchParameters) throws BrokerException, ConstraintException, DeadlockException(Code)(Java Doc)
protected Statement getStatement(String statementID) throws BrokerException(Code)(Java Doc)
abstract protected void markTransactionStarted()(Code)(Java Doc)
public void releaseSavepoint(Savepoint savepoint)(Code)(Java Doc)
public void rollback(Savepoint savepoint)(Code)(Java Doc)
public Savepoint setSavepoint()(Code)(Java Doc)
public Savepoint setSavepoint(String name)(Code)(Java Doc)

Methods inherited from net.sourceforge.orbroker.QueryableConnection

final public void closeIterator(Iterator iterator)(Code)(Java Doc)
final protected QueryResult executeQuery(Statement stm, boolean useScrollable) throws BrokerException(Code)(Java Doc)
public Iterator iterate(String statementID, int fetchSize)(Code)(Java Doc)
final public List selectMany(String statementID) throws BrokerException(Code)(Java Doc)
final public int selectMany(String statementID, Collection resultCollection) throws BrokerException(Code)(Java Doc)
final public int selectMany(String statementID, Collection resultCollection, int startRow, int rowCount) throws BrokerException(Code)(Java Doc)
final public List selectMany(String statementID, int startRow, int rowCount) throws BrokerException(Code)(Java Doc)
final public Object selectOne(String statementID) throws BrokerException, MoreThanOneRowException(Code)(Java Doc)
final public boolean selectOne(String statementID, Object resultObject) throws BrokerException, MoreThanOneRowException(Code)(Java Doc)
public Object selectOneFromMany(String statementID, int fromRow) throws BrokerException(Code)(Java Doc)

Methods inherited from net.sourceforge.orbroker.BrokerConnection

final void addContext(ConnectionContext addContext)(Code)(Java Doc)
final public void addStatement(String id, String sql) throws BrokerException, ConfigurationException(Code)(Java Doc)
final public void addStatement(String id, String sql, String resultObjectId) throws BrokerException, ConfigurationException(Code)(Java Doc)
final protected void dropConnection()(Code)(Java Doc)
final protected void finalize()(Code)(Java Doc)
final protected Connection getActiveConnection()(Code)(Java Doc)
abstract protected String getClosedConnectionMessage()(Code)(Java Doc)
final protected ConnectionContext getConnectionContext()(Code)(Java Doc)
abstract protected String getFinalizeWarning()(Code)(Java Doc)
final public Object getParameter(String name)(Code)(Java Doc)
protected Statement getStatement(String statementID) throws BrokerException(Code)(Java Doc)
final protected String getTransactionIsolationText()(Code)(Java Doc)
final protected boolean isAutoCommit()(Code)(Java Doc)
final protected Executable newExecutable(Transaction transaction)(Code)(Java Doc)
protected boolean retryFailedStatement(SQLException e)(Code)(Java Doc)
abstract protected void setConnectionProperties() throws SQLException(Code)(Java Doc)
final public void setParameter(String name, Object value)(Code)(Java Doc)
final public void setTextReplacement(String key, String value)(Code)(Java Doc)
final public void setTextReplacements(Properties textReplacements)(Code)(Java Doc)
abstract protected boolean shouldConnectionClose()(Code)(Java Doc)
final protected boolean supportsBatch()(Code)(Java Doc)
final protected boolean supportsScrollable()(Code)(Java Doc)
final protected void throwException(SQLException source) throws BrokerException, ConstraintException, DeadlockException(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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