Package org.apache.commons.collections.set
This package contains implementations of the
Set and
SortedSet interfaces.
The implementations are in the form of direct implementations and decorators. A decorator wraps another implementation of the interface to add some specific additional functionality.
The following implementations are provided in the package:
- CompositeSet - a set that combines multiple sets into one
- Synchronized - synchronizes method access for multi-threaded environments
- Unmodifiable - ensures the collection cannot be altered
- Predicated - ensures that only elements that are valid according to a predicate can be added
- Typed - ensures that only elements that are of a specific type can be added
- Transformed - transforms each element added
- ListOrdered - ensures that insertion order is retained
- MapBackedSet - a set formed by decorating a Map
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Interface Summary Interface Description CompositeSet.SetMutator Define callbacks for mutation operations. -
Class Summary Class Description AbstractSerializableSetDecorator Serializable subclass of AbstractSetDecorator.AbstractSetDecorator Decorates anotherSetto provide additional behaviour.AbstractSortedSetDecorator Decorates anotherSortedSetto provide additional behaviour.CompositeSet Decorates a set of other sets to provide a single unified view.ListOrderedSet Decorates anotherSetto ensure that the order of addition is retained and used by the iterator.MapBackedSet Decorates aMapto obtainSetbehaviour.PredicatedSet Decorates anotherSetto validate that all additions match a specified predicate.PredicatedSortedSet Decorates anotherSortedSetto validate that all additions match a specified predicate.SynchronizedSet Decorates anotherSetto synchronize its behaviour for a multi-threaded environment.SynchronizedSortedSet Decorates anotherSortedSetto synchronize its behaviour for a multi-threaded environment.TransformedSet Decorates anotherSetto transform objects that are added.TransformedSortedSet Decorates anotherSortedSetto transform objects that are added.TypedSet Decorates anotherSetto validate that elements added are of a specific type.TypedSortedSet Decorates anotherSortedSetto validate that elements added are of a specific type.UnmodifiableSet Decorates anotherSetto ensure it can't be altered.UnmodifiableSortedSet Decorates anotherSortedSetto ensure it can't be altered.