Package nl.talsmasoftware.context.delegation

Layered code for delegation such as CallMappingExecutorService.

Wrapper

The base class for any delegation in this package. Any wrapper contains an implementation of hashCode, equals and toString based on the actual class and the wrapped instance. A wrapper has two accessors for the delegate object: delegate() and nonNullDelegate(). The latter validates that the delegate is non-null.

The WrapperWithContext is just a wrapper that also contains a context snapshot (or a supplier for it).

CallMappingExecutorService

A DelegatingExecutorService that maps all Runnable tasks in Callable objects, providing a base executor service that can wrap any background task by implementing a single map(Callable) method.

Interface Summary

Interface	Description
ContextSnapshotSupplier	Interface for a Supplier of ContextSnapshot.

Class Summary

Class	Description
CallMappingExecutorService	Abstract base-class that makes it a little easier to schedule tasks (Runnable or Callable objects) using an existing ExecutorService while providing a custom mapping for all tasks before they get scheduled.
DelegatingExecutorService	Abstract baseclass that makes it a little easier to wrap existing ExecutorService implementations by forwarding all methods to a delegate executor service. The class also provides overridable wrapper methods for all complex input (e.g.
DelegatingFuture<V>	Abstract baseclass that simplifies wrapping an existing Future by forwarding all required methods to a delegate future object. The class also provides overridable wrapper methods for result and exception outcomes.
Wrapper<T>	Base wrapper class offering a non-null delegate method.
WrapperWithContext<T>	Wrapper that also contains a fixed context snapshot.