Package org.apache.tapestry5.ioc

## Class ScopeConstants

- java.lang.Object
- - org.apache.tapestry5.ioc.ScopeConstants

-     public class ScopeConstants
      extends Object

  Defines constants for built-in scopes (used with the `Scope` annotation.

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `static String` | `DEFAULT` | The default scope is a singleton within the `Registry`.
    `static String` | `PERTHREAD` | An alternate scope provided with Tapestry; a per-thread instance is created on demand, behind a shared proxy.

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `ScopeConstants()` |

  - ### Method Summary

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### DEFAULT

          public static final String DEFAULT

      The default scope is a singleton within the `Registry`. A single instance will be created on demand. The lifespan of the instance lasts until the registry is shut down. Some implementations will want to know when the Registry is shutdown; they should register for notifications via the `RegistryShutdownHub` service.
      See Also:
        Constant Field Values

    - #### PERTHREAD

          public static final String PERTHREAD

      An alternate scope provided with Tapestry; a per-thread instance is created on demand, behind a shared proxy. Method invocations on the shared proxy are forwarded to the per-thread instance. Each per-thread instance lasts until the thread is cleaned up (at the end of a request for a web application). Some implementations will want to be notified before being discarded and should register with the `PerthreadManager` to receive notifications.
      See Also:
        `PerThreadServiceLifecycle`, Constant Field Values

  - ### Constructor Detail

    - #### ScopeConstants

          public ScopeConstants()