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## javax.faces.lifecycle
Class LifecycleFactory

    java.lang.Object
      javax.faces.lifecycle.LifecycleFactory

All Implemented Interfaces:
  FacesWrapper<LifecycleFactory>

    public abstract class LifecycleFactory

extends Object
implements FacesWrapper<LifecycleFactory>

LifecycleFactory is a factory object that creates (if needed) and returns `Lifecycle` instances. Implementations of JavaServer Faces must provide at least a default implementation of `Lifecycle`. Advanced implementations (or external third party libraries) MAY provide additional `Lifecycle` implementations (keyed by lifecycle identifiers) for performing different types of request processing on a per-request basis.

There must be one `LifecycleFactory` instance per web application that is utilizing JavaServer Faces. This instance can be acquired, in a portable manner, by calling:

       LifecycleFactory factory = (LifecycleFactory)
        FactoryFinder.getFactory(FactoryFinder.LIFECYCLE_FACTORY);

Field Summary
`static String` | `DEFAULT_LIFECYCLE` The lifecycle identifier for the default `Lifecycle` instance for this JavaServer Faces implementation.

Constructor Summary
`LifecycleFactory()`

Method Summary
`abstract void` | `addLifecycle(String lifecycleId, Lifecycle lifecycle)` Register a new `Lifecycle` instance, associated with the specified `lifecycleId`, to be supported by this `LifecycleFactory`.
`abstract Lifecycle` | `getLifecycle(String lifecycleId)` Create (if needed) and return a `Lifecycle` instance for the specified lifecycle identifier.
`abstract Iterator<String>` | `getLifecycleIds()` Return an `Iterator` over the set of lifecycle identifiers supported by this factory.
`LifecycleFactory` | `getWrapped()` If this factory has been decorated, the implementation doing the decorating may override this method to provide access to the implementation being wrapped.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### DEFAULT_LIFECYCLE

    public static final String DEFAULT_LIFECYCLE

  The lifecycle identifier for the default `Lifecycle` instance for this JavaServer Faces implementation.

  See Also:
    Constant Field Values

Constructor Detail

### LifecycleFactory

    public LifecycleFactory()

Method Detail

### getWrapped

    public LifecycleFactory getWrapped()

  If this factory has been decorated, the implementation doing the decorating may override this method to provide access to the implementation being wrapped. A default implementation is provided that returns `null`.

  Specified by:
    `getWrapped` in interface `FacesWrapper<LifecycleFactory>`
  Since:
    2.0

### addLifecycle

    public abstract void addLifecycle(String lifecycleId,
                                      Lifecycle lifecycle)

  Register a new `Lifecycle` instance, associated with the specified `lifecycleId`, to be supported by this `LifecycleFactory`. This method may be called at any time, and makes the corresponding `Lifecycle` instance available throughout the remaining lifetime of this web application.

  Parameters:
    `lifecycleId` - Identifier of the new `Lifecycle`
    `lifecycle` - `Lifecycle` instance that we are registering
  Throws:
    `IllegalArgumentException` - if a `Lifecycle` with the specified `lifecycleId` has already been registered
    `NullPointerException` - if `lifecycleId` or `lifecycle` is `null`

### getLifecycle

    public abstract Lifecycle getLifecycle(String lifecycleId)

  Create (if needed) and return a `Lifecycle` instance for the specified lifecycle identifier. The set of available lifecycle identifiers is available via the `getLifecycleIds()` method.

  Each call to `getLifecycle()` for the same `lifecycleId`, from within the same web application, must return the same `Lifecycle` instance.

  Parameters:
    `lifecycleId` - Lifecycle identifier of the requested `Lifecycle` instance
  Throws:
    `IllegalArgumentException` - if no `Lifecycle` instance can be returned for the specified identifier
    `NullPointerException` - if `lifecycleId` is `null`

### getLifecycleIds

    public abstract Iterator<String> getLifecycleIds()

  Return an `Iterator` over the set of lifecycle identifiers supported by this factory. This set must include the value specified by `LifecycleFactory.DEFAULT_LIFECYCLE`.

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