org.apache.tapestry5.ioc

Interface ServiceLifecycle

All Known Subinterfaces:

ServiceLifecycle2

All Known Implementing Classes:

PerThreadServiceLifecycle, SingletonServiceLifecycle

public interface ServiceLifecycle

Allows certain types of lifecycles to control exactly how services are instantiated.

Method Summary

Modifier and Type	Method and Description
Object	createService(ServiceResources resources, ObjectCreator creator) Returns the same creator, or a new one, that encapsulates the creation of the core service implementation.
boolean	isSingleton() Returns true if the lifecycle is a singleton (a service that will only be created once).

Method Detail

createService

Object createService(ServiceResources resources,
                     ObjectCreator creator)

Returns the same creator, or a new one, that encapsulates the creation of the core service implementation.

Parameters:

resources - source of information about the service to be created, and source of additional services or other resources that may be needed when constructing the core service implementation

creator - object capable of creating the service implementation on demand. This is a wrapper around the service's builder method.

Returns:

the service or equivalent service proxy

isSingleton

boolean isSingleton()

Returns true if the lifecycle is a singleton (a service that will only be created once). Return false if the underlying service instance may be created multiple times (for example, the ScopeConstants.PERTHREAD scope}. A future version of Tapestry IoC may optimize for the later case.

Returns:

true for singletons, false for services that can be repeatedly constructed