i3.dragos.core
Class AbstractService

java.lang.Object
  i3.dragos.core.AbstractService

All Implemented Interfaces:

Service

Direct Known Subclasses:

CommandService, DataSourceFactory, EventManager, RuleEngine, TransactionManagerFactory

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

AbstractService is a generic implementation of the Service interface.

Author:

Boris Boehlen <boehlen@cs.rwth-aachen.de>, Thorsten Hermes <thermes@i3.informatik.rwth-aachen.de>

Nested Class Summary

Nested classes/interfaces inherited from interface i3.dragos.core.Service

Service.Result, Service.State

Constructor Summary

AbstractService()
Empty default constructor.

Method Summary

Service.State	getState() Returns the state of the service.
Service.Result	initialize() Initializes the services.
Service.Result	resume() Tries to resume the execution of a service or a start a service which has been stopped before.
Service.Result	start() Tries to start the service.
Service.Result	stop() Tries to stop the service.
Service.Result	suspend() Tries to suspend the execution of a service.
Service.Result	uninitialize() Uninitializes the services and releases all resources used by the service.

Methods inherited from class java.lang.Object

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

Methods inherited from interface i3.dragos.core.Service

getName

Constructor Detail

AbstractService

public AbstractService()

Empty default constructor.

Method Detail

initialize

public Service.Result initialize()

Initializes the services.

Specified by:

initialize in interface Service

Returns:

OK if the initialization was successful, FAILED if it was not and INVALID if the configuration was incorrect.

uninitialize

public Service.Result uninitialize()

Uninitializes the services and releases all resources used by the service.

Specified by:

uninitialize in interface Service

Returns:

OK if the uninitialization was successful, FAILED if it was not and INVALID if the configuration was incorrect.

start

public Service.Result start()

Tries to start the service.

Specified by:

start in interface Service

Returns:

OK if the services could be started, FAILED otherwise.

stop

public Service.Result stop()

Tries to stop the service.

Specified by:

stop in interface Service

Returns:

OK if the services could be stopped, BUSY if the service can not be stopped yet because it is performing some task at the moment which can't be interrupted and FAILED otherwise.

resume

public Service.Result resume()

Tries to resume the execution of a service or a start a service which has been stopped before.

Specified by:

resume in interface Service

Returns:

OK if the services could be resumed, FAILED otherwise.

suspend

public Service.Result suspend()

Tries to suspend the execution of a service.

Specified by:

suspend in interface Service

Returns:

OK if the services could be suspended, BUSY if the service can not be suspended yet because it is performing some task at the moment which can't be interrupted and FAILED otherwise.

getState

public Service.State getState()

Returns the state of the service.

Specified by:

getState in interface Service

Returns:

the state of the service.