Package com.iizix.actionactor
Class AbstractJavaActionActor
- java.lang.Object
- com.iizix.txp.impl.AbstractTXPNode
- com.iizix.txp.impl.AbstractActionActorTXPNode<JavaActionActorBase.Settings>
- com.iizix.actionactor.AbstractJavaActionActor
- All Implemented Interfaces:
IActionActorSettingsReceiver<JavaActionActorBase.Settings>,IJavaActionActor,ITimeoutListener,ITXPNode
- Direct Known Subclasses:
TestJavaActionActor
public abstract class AbstractJavaActionActor extends AbstractActionActorTXPNode<JavaActionActorBase.Settings> implements IJavaActionActor
This minimal class implements the Java Action Actor Interface InterfaceIJavaActionActorrequired to handle execution of a VirtualSpace action in conjunction with the TXP engine.- Author:
- Christopher Mindus
Nested Class Summary
Nested classes/interfaces inherited from interface com.iizix.txp.ITXPNode
ITXPNode.State
Field Summary
Fields inherited from class com.iizix.txp.impl.AbstractTXPNode
hasProcessTimedOut, hasTimedOut, hasTimedOutWaiting, pid, process, state, timeout, timeoutTask, txplog
Constructor Summary
Constructors Modifier Constructor Description protectedAbstractJavaActionActor()Default constructor.
Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description ITXPNode.Statebegin(ITXProcess process, ITXPid pid)Notifies the node it got associated with a transactional process.ITXPNode.Statecommit(ITXProcess process)Instructs the node to commit the work.voidexecute()Method called to do the serialized work of the action actor.voidforget(ITXProcess process)Notifies the node it got disassociated from the process ie it can abort, rollback (if needed) and forget about the process.abstract voidonAction()Performs the action as a part of a commit operation.protected voidonBegin()Notifies the node it got associated with a transactional process.protected voidonCommit()Instructs the node to commit the work.protected voidonForget()Notifies the node it got disassociated from the process i.e.protected voidonPrepare()Action actor specific action needed for preparation.protected voidonRollback()Instructs the node to roll back the work.protected voidprepare()Action actor specific action needed for preparation.ITXPNode.Staterollback(ITXProcess process)Instructs the node to roll back the work.Methods inherited from class com.iizix.txp.impl.AbstractActionActorTXPNode
assignSettings, cleanUp, createLogger, executeAction, getAction, getActionProcess, getLoggerInfo, getSettings, getVirtualSpace, onCleanup, prepareAction, setState
Methods inherited from class com.iizix.txp.impl.AbstractTXPNode
cancelTimeout, getPid, getProcess, getState, getTimeout, hasProcessTimedOut, hasTimedOut, hasTimedOutWaiting, isIdempotent, log, onTimeout, processTimeout, ready, recover, retry, setTimeout, timeout, undo
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface com.iizix.actionactor.IActionActorSettingsReceiver
assignSettings, getAction, getActionProcess, getSettings, getVirtualSpace
Methods inherited from interface com.iizix.txp.ITXPNode
getPid, getState, getTimeout, hasProcessTimedOut, hasTimedOut, isIdempotent, processTimeout, recover, retry, timeout, undo
Method Detail
begin
public final ITXPNode.State begin(ITXProcess process, ITXPid pid)
Notifies the node it got associated with a transactional process.
prepare
protected final void prepare() throws java.lang.ExceptionAction actor specific action needed for preparation. This method is called from the prepareAction.This method cannot be overridden. Override the method
to perform custom processing.onPrepare()- Overrides:
preparein classAbstractActionActorTXPNode<JavaActionActorBase.Settings>- Throws:
java.lang.Exception- For any error in the prepare phase.
execute
public void execute() throws java.lang.ExceptionMethod called to do the serialized work of the action actor. This method is called once all nodes are associated with the TXProcess and each node has processed "begin" successfully.By default, this method calls the
method but can be overridden.onAction()- Specified by:
executein classAbstractActionActorTXPNode<JavaActionActorBase.Settings>- Throws:
java.lang.Exception- For any error in the execution phase.
forget
public final void forget(ITXProcess process)
Notifies the node it got disassociated from the process ie it can abort, rollback (if needed) and forget about the process.This method cannot be overridden. Override the method
to perform custom processing.onForget()- Specified by:
forgetin interfaceITXPNode- Overrides:
forgetin classAbstractActionActorTXPNode<JavaActionActorBase.Settings>- Parameters:
process- The process.
rollback
public ITXPNode.State rollback(ITXProcess process)
Instructs the node to roll back the work. The node should set and respond with eitherITXPNode.State.COMPLETEDorITXPNode.State.FAILEDdepending on its state. NOTE if the node failed its work it is already rolled back and will returnITXPNode.State.COMPLETEDbut remain in stateITXPNode.State.FAILED.This method cannot be overridden. Override the method
to perform custom processing.onRollback()
commit
public ITXPNode.State commit(ITXProcess process)
Instructs the node to commit the work. The node should set and respond with eitherITXPNode.State.COMPLETEDorITXPNode.State.FAILEDdepending on its state. If a commit failed the node is expected to have rolled back the work.
onBegin
protected void onBegin() throws java.lang.ExceptionNotifies the node it got associated with a transactional process. The node should set up its local transaction context as required.Override this method to perform specific processing.
- Throws:
java.lang.Exception- For any kind of error.
onPrepare
protected void onPrepare() throws java.lang.ExceptionAction actor specific action needed for preparation. Called after begin to prepare the operation.Override this method to perform specific processing.
- Throws:
java.lang.Exception- For any kind of error.
onCommit
protected void onCommit() throws java.lang.ExceptionInstructs the node to commit the work.This method can be overridden to process commit.
- Throws:
java.lang.Exception- For any kind of error.
onRollback
protected void onRollback() throws java.lang.ExceptionInstructs the node to roll back the work.This method can be overridden to process rollback.
- Throws:
java.lang.Exception- For any kind of error.
onForget
protected void onForget() throws java.lang.ExceptionNotifies the node it got disassociated from the process i.e. it can abort, rollback (if needed) and forget about the process.A node that handles commit and rollback should override this method and call rollback.
The default is to make sure that
has been called, and if not it gets called.onRollback()- Throws:
java.lang.Exception- For any kind of error.
onAction
public abstract void onAction()
Performs the action as a part of a commit operation.- Specified by:
onActionin interfaceIJavaActionActor