Package org.apache.commons.collections4.queue

This package contains implementations for the Queue interface.

The following implementations are provided in the package:

• CircularFifoQueue - implements a queue with a fixed size that discards oldest when full

The following decorators are provided in the package:

• Predicated - ensures that only elements that are valid according to a predicate can be added
• Transformed - transforms elements added to the queue
• Unmodifiable - ensures the collection cannot be altered

Class Summary

Class	Description
AbstractQueueDecorator<E>	Decorates another Queue to provide additional behaviour.
CircularFifoQueue<E>	CircularFifoQueue is a first-in first-out queue with a fixed size that replaces its oldest element if full.
PredicatedQueue<E>	Decorates another Queue to validate that additions match a specified predicate.
SynchronizedQueue<E>	Decorates another Queue to synchronize its behaviour for a multi-threaded environment.
TransformedQueue<E>	Decorates another Queue to transform objects that are added.
UnmodifiableQueue<E>	Decorates another Queue to ensure it can't be altered.