org.apache.tapestry5.internal.services

## Class SessionApplicationStatePersistenceStrategy

- java.lang.Object
- - org.apache.tapestry5.internal.services.SessionApplicationStatePersistenceStrategy

- All Implemented Interfaces:
    ApplicationStatePersistenceStrategy
  Direct Known Subclasses:
    EntityApplicationStatePersistenceStrategy, EntityApplicationStatePersistenceStrategy

      public class SessionApplicationStatePersistenceStrategy
      extends java.lang.Object
      implements ApplicationStatePersistenceStrategy

  Stores ASOs in the `Session`, which will be created as necessary.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `SessionApplicationStatePersistenceStrategy(Request request)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected <T> java.lang.String` | `buildKey(java.lang.Class<T> ssoClass)`
    `<T> boolean` | `exists(java.lang.Class<T> ssoClass)` Returns true if the SSO already exists, false if null.
    `<T> T` | `get(java.lang.Class<T> ssoClass, ApplicationStateCreator<T> creator)` Gets the SSO from the domain.
    `protected <T> java.lang.Object` | `getOrCreate(java.lang.Class<T> ssoClass, ApplicationStateCreator<T> creator)`
    `protected Session` | `getSession()`
    `<T> void` | `set(java.lang.Class<T> ssoClass, T sso)` Stores a new SSO, possibly replacing the existing one.

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

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

- - ### Constructor Detail

    - #### SessionApplicationStatePersistenceStrategy

          public SessionApplicationStatePersistenceStrategy(Request request)

  - ### Method Detail

    - #### getSession

          protected Session getSession()

    - #### get

          public <T> T get(java.lang.Class<T> ssoClass,
                           ApplicationStateCreator<T> creator)

      Description copied from interface: `ApplicationStatePersistenceStrategy`
      Gets the SSO from the domain. If the ASO does not already exist, it is created and stored, then returned.
      Specified by:
        `get` in interface `ApplicationStatePersistenceStrategy`

    - #### getOrCreate

          protected <T> java.lang.Object getOrCreate(java.lang.Class<T> ssoClass,
                                                     ApplicationStateCreator<T> creator)

    - #### buildKey

          protected <T> java.lang.String buildKey(java.lang.Class<T> ssoClass)

    - #### set

          public <T> void set(java.lang.Class<T> ssoClass,
                              T sso)

      Description copied from interface: `ApplicationStatePersistenceStrategy`
      Stores a new SSO, possibly replacing the existing one.
      Specified by:
        `set` in interface `ApplicationStatePersistenceStrategy`
        `sso` - instance to store, or null to delete existing

    - #### exists

          public <T> boolean exists(java.lang.Class<T> ssoClass)

      Description copied from interface: `ApplicationStatePersistenceStrategy`
      Returns true if the SSO already exists, false if null.
      Specified by:
        `exists` in interface `ApplicationStatePersistenceStrategy`

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