Package org.apache.commons.collections.set

This package contains implementations of the Set and SortedSet interfaces.

See:
Description

Interface Summary

CompositeSet.SetMutator<E>

Define callbacks for mutation operations.

Class Summary

AbstractSerializableSetDecorator<E>	Serializable subclass of AbstractSetDecorator.
AbstractSetDecorator<E>	Decorates another Set to provide additional behaviour.
AbstractSortedSetDecorator<E>	Decorates another SortedSet to provide additional behaviour.
CompositeSet<E>	Decorates a set of other sets to provide a single unified view.
ListOrderedSet<E>	Decorates another Set to ensure that the order of addition is retained and used by the iterator.
MapBackedSet<K,V>	Decorates a Map to obtain Set behaviour.
PredicatedSet<E>	Decorates another Set to validate that all additions match a specified predicate.
PredicatedSortedSet<E>	Decorates another SortedSet to validate that all additions match a specified predicate.
SynchronizedSet<E>	Decorates another Set to synchronize its behaviour for a multi-threaded environment.
SynchronizedSortedSet<E>	Decorates another SortedSet to synchronize its behaviour for a multi-threaded environment.
TransformedSet	Decorates another Set to transform objects that are added.
TransformedSortedSet	Decorates another SortedSet to transform objects that are added.
TypedSet	Decorates another Set to validate that elements added are of a specific type.
TypedSortedSet	Decorates another SortedSet to validate that elements added are of a specific type.
UnmodifiableSet<E>	Decorates another Set to ensure it can't be altered.
UnmodifiableSortedSet<E>	Decorates another SortedSet to ensure it can't be altered.

Package org.apache.commons.collections.set Description

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

The following decorators are provided in the package:

• 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