org.ow2.petals.jbi.management
Interface Task

All Known Implementing Classes:

AbstractCheckPackageTask, AbstractCopyPackageToRepositoryTask, AbstractCreateStateHolderTask, AbstractFileManipulationTask, AbstractLoggableTask, ComponentCheckPackageTask, CopyArchiveToInstalledDirTask, CopyArchiveToWorkDirTask, CreateAndRegisterInstallerMBeanTask, CreateAndRegisterSULifeCycleTask, CreateComponentRepositoryTask, CreateComponentStateHolderTask, CreateSARepositoryTask, CreateSAStateHolderTask, CreateSLClassloaderTask, CreateSLRepositoryTask, CreateSLStateHolderTask, CreateXMLDeploymentResultTask, CreateXMLUndeploymentResultTask, DeployAllSUTask, DeploySUToComponentTask, DownloadTask, ExtractSUsTask, ExtractTask, RegisterAllConnectionTask, RegisterComponentInSLTask, RegisterSALifeCycleTask, RemoveAllConnectionsTask, RemoveComponentArchiveTask, RemoveComponentRepositoryTask, RemoveComponentStateHolderTask, RemoveSAArchiveTask, RemoveSADirectoryTask, RemoveSAStateHolderTask, RemoveSLArchiveTask, RemoveSLClassloaderTask, RemoveSLRepositoryTask, RemoveSLStateHolderTask, RenameSUsTask, RetrieveSAAndSUInstallRootsTask, RetrieveSALifeCycleTask, SACheckPackageTask, SLCheckPackageTask, UndeployAllSUsTask, UnregisterComponentFromSLTask, UnregisterInstallerTask, UnregisterSALifeCycleTask

public interface Task

A Task is an execution unit, that can be executed or undo. Tasks can be used by a processor that will execute them and reverse execution in case of fault.

Author:

ofabre - EBM Websourcing

Method Summary

void	execute(Context context) Launch the task with the given context.
void	undo(Context context) Reverse the task in order to retrieve the environ state before execution of this task.

Method Detail

execute

void execute(Context context)
             throws java.lang.Exception

Launch the task with the given context. Task can modify information included in this context during execution.

Parameters:

context - the execution context handling input and output information

Throws:

java.lang.Exception - if an error occurs during Task processing

undo

void undo(Context context)
          throws java.lang.Exception

Reverse the task in order to retrieve the environ state before execution of this task.

Parameters:

context - the execution context handling input and output information

Throws:

java.lang.Exception - if an error occurs during Task unprocessing