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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » resin » com.caucho.amber

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Class Diagram

Java Document (Java Doc)

com.caucho.amber .AmberConnection

AmberConnection
public interface AmberConnection (Code)
	Main user interface to Amber.

Method Summary
public void	beginTransaction() Starts a transaction.
public void	close() Closes the connection.
public void	commit() Commits a transaction.
public boolean	contains(Object entity) Returns true if the entitiy is managed.
public void	create(Object obj) Creates a new entity given the values in the object.
public void	delete(Object obj) Deletes the specified entry.
public List	find(String query)
public void	flush() Flushes data from the connection.
public Object	load(Class cl, Object key) Loads the entity specified by its class and primary key.
public Object	load(Class cl, long key) Loads the entity specified by its class and primary key.
public Object	makePersistent(Object entity)
public AmberQuery	prepareQuery(String queryString) Creates a query object from a query string.
public ResultSet	query(String query)
public void	rollback() Rolls a transaction back.
public int	update(String query)

Method Detail

beginTransaction
public void beginTransaction() throws SQLException(Code)
	Starts a transaction.

close
public void close()(Code)
	Closes the connection. Unlike JDBC, this will never throw an exception (although it may log a warning.)

commit
public void commit() throws SQLException(Code)
	Commits a transaction.

contains
public boolean contains(Object entity)(Code)
	Returns true if the entitiy is managed.

create
public void create(Object obj) throws SQLException(Code)
	Creates a new entity given the values in the object.

delete
public void delete(Object obj) throws SQLException(Code)
	Deletes the specified entry.

find
public List find(String query) throws SQLException(Code)
	Queries the database, returning a result set Parameters: query - the query the query result set.

flush
public void flush() throws SQLException(Code)
	Flushes data from the connection.

load
public Object load(Class cl, Object key) throws AmberException(Code)
	Loads the entity specified by its class and primary key.

load
public Object load(Class cl, long key) throws AmberException(Code)
	Loads the entity specified by its class and primary key.

makePersistent
public Object makePersistent(Object entity) throws SQLException(Code)
	Loads the entity, returning the active entity

prepareQuery
public AmberQuery prepareQuery(String queryString) throws AmberException(Code)
	Creates a query object from a query string. The query will load the default group values for any selected entitites. Parameters: query - a query

query
public ResultSet query(String query) throws SQLException(Code)
	Queries the database, returning a result set Parameters: query - the query the query result set.

rollback
public void rollback() throws SQLException(Code)
	Rolls a transaction back.

update
public int update(String query) throws SQLException(Code)
	Queries the database, returning a result set Parameters: query - the query the query result set.

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