Class Switch

java.lang.Object

org.jpos.transaction.participant.Switch

All Implemented Interfaces:

Configurable, GroupSelector, TransactionConstants, TransactionParticipant

public class Switch
extends Object
implements Configurable, GroupSelector

GroupSelector that picks the next participant group based on the transaction name stored in the context (default key ContextConstants.TXNNAME).

Field Summary

Fields inherited from interface TransactionConstants

ABORTED, FAIL, NO_JOIN, PAUSE, PREPARED, READONLY, RETRY

Modifier and Type	Field	Description
static final int	ABORTED	Transaction has been aborted.
static final int	FAIL	Shortcut for a read-only, non-joining abort (READONLY | NO_JOIN).
static final int	NO_JOIN	This participant does not join the transaction
static final int	PAUSE	Transaction is paused.
static final int	PREPARED	Transaction has been prepared successfully.
static final int	READONLY	Context has not been modified (no need to persist a snapshot)
static final int	RETRY	Transaction should be retried.

Constructor Summary

Constructors

Constructor	Description
Switch()	Creates the selector; configuration is supplied via setConfiguration(Configuration).

Method Summary

Modifier and Type	Method	Description
int	prepare(long id, Serializable o)	Called by TransactionManager in preparation for a transaction
String	select(long id, Serializable ser)	Selects the transaction group to execute.
void	setConfiguration(Configuration cfg)	Configures this object with the supplied Configuration.

Methods inherited from class Object

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

Methods inherited from interface TransactionParticipant

abort, commit

Modifier and Type	Method	Description
default void	abort(long id, Serializable context)	Called by TransactionManager upon transaction commit.
default void	commit(long id, Serializable context)	Called by TransactionManager upon transaction commit.

Constructor Details

Switch

public Switch()

Creates the selector; configuration is supplied via setConfiguration(Configuration).

Method Details

select

public String select(long id,
 Serializable ser)

Description copied from interface: GroupSelector

Selects the transaction group to execute.

Specified by:

select in interface GroupSelector

Parameters:

id - transaction id

ser - transaction context

Returns:

group name or null for no-action

prepare

public int prepare(long id,
 Serializable o)

Description copied from interface: TransactionParticipant

Called by TransactionManager in preparation for a transaction

Specified by:

prepare in interface TransactionParticipant

Parameters:

id - the Transaction identifier

o - transaction context

Returns:

PREPARED or ABORTED (| NO_JOIN | READONLY)

setConfiguration

public void setConfiguration(Configuration cfg)

Description copied from interface: Configurable

Configures this object with the supplied Configuration.

Specified by:

setConfiguration in interface Configurable

Parameters:

cfg - Configuration object