Class SingletonServiceLifecycle

java.lang.Object
org.apache.tapestry5.ioc.internal.SingletonServiceLifecycle
All Implemented Interfaces:
ServiceLifecycle, ServiceLifecycle2

public class SingletonServiceLifecycle extends Object implements ServiceLifecycle2
The basic implementation of a service lifecycle, which simply uses the ObjectCreator to create an instance of the service when asked.
  • Constructor Details

  • Method Details

    • createService

      public Object createService(ServiceResources resources, ObjectCreator creator)
      Description copied from interface: ServiceLifecycle
      Returns the same creator, or a new one, that encapsulates the creation of the core service implementation.
      Specified by:
      createService in interface ServiceLifecycle
      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

      public boolean isSingleton()
      Description copied from interface: ServiceLifecycle
      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.
      Specified by:
      isSingleton in interface ServiceLifecycle
      Returns:
      true for singletons, false for services that can be repeatedly constructed
    • requiresProxy

      public boolean requiresProxy()
      Description copied from interface: ServiceLifecycle2
      If true, then lifecycle requires a proxy, meaning it is only usable with services that properly define a service interface. The default (singleton) scope does not require a proxy, but most other service scopes do. The default (when wrapping a ServiceLifecycle as a ServiceLifecycle2 is to return true.
      Specified by:
      requiresProxy in interface ServiceLifecycle2
      Returns:
      true if proxying is necessary, false otherwise