org.demac.process.base.extension
Class ExtensionModule

java.lang.Object
  org.demac.process.base.extension.ExtensionModule

All Implemented Interfaces:

Service

Direct Known Subclasses:

ConcurrencyService, ExtendedExecutionService, InteractionService, SynchronizationService, TransactionSupportService

public abstract class ExtensionModule
extends java.lang.Object
implements Service

Interface for all org.demac.process.base.extension.ExtensionModules. An org.demac.process.base.extension.ExtensionModule extends the functionality of the org.demac.process.base.exe.BaseExecutionService. It is strongly related to the capability of the mobile device.

Field Summary

static int	STATUS_EXECUTION_DONE Tells, that the execution is done successfully or there was nothing to do.
static int	STATUS_MIGRATE_TO_OTHER Tells, that the execution can't be completed, because this device is not sufficient.
static int	STATUS_WAIT_FOR_EVENT Tells, that the execution can't be completed, because we have to wait for a certain event.

Constructor Summary

ExtensionModule()

Method Summary

abstract boolean	execute(DataSet ds, java.lang.String type) Method to call a function of the org.demac.process.base.extension.ExtensionModule.
abstract java.lang.String	getId()
static ExtensionModule	getInstance()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.demac.Service

isStarted, start, stop

Field Detail

STATUS_EXECUTION_DONE

public static final int STATUS_EXECUTION_DONE

Tells, that the execution is done successfully or there was nothing to do.

See Also:

Constant Field Values

STATUS_WAIT_FOR_EVENT

public static final int STATUS_WAIT_FOR_EVENT

Tells, that the execution can't be completed, because we have to wait for a certain event. Don't migrate the process now!

See Also:

Constant Field Values

STATUS_MIGRATE_TO_OTHER

public static final int STATUS_MIGRATE_TO_OTHER

Tells, that the execution can't be completed, because this device is not sufficient. Migrate the process to another device!

See Also:

Constant Field Values

Constructor Detail

ExtensionModule

public ExtensionModule()

Method Detail

getId

public abstract java.lang.String getId()

Returns:

the identifier of the org.demac.process.base.extension.ExtensionModule.

getInstance

public static ExtensionModule getInstance()

execute

public abstract boolean execute(DataSet ds,
                                java.lang.String type)
                         throws java.lang.Exception

Method to call a function of the org.demac.process.base.extension.ExtensionModule.

Parameters:

p - a dataset for input, referencing a process to be executed.

type - a possible description to specify the handling of the object to execute (if there is more than one possibility to execute it).

Returns:

true, if process has to be executed normally when this execution ends.

Throws:

java.lang.Exception