Package org.apache.tapestry5.ioc
Interface ServiceLifecycle
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- 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.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.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).
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Method Detail
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createService
java.lang.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 implementationcreator
- 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
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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, theScopeConstants.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
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