Unmodifiable

org.apache.commons.collections.Unmodifiable

Known Indirect Subclasses

UnmodifiableBag, UnmodifiableBidiMap, UnmodifiableBuffer, UnmodifiableCollection, UnmodifiableEntrySet, UnmodifiableIterator, UnmodifiableList, UnmodifiableListIterator, UnmodifiableMap, UnmodifiableMapEntry, UnmodifiableMapIterator, UnmodifiableOrderedBidiMap, UnmodifiableOrderedMap, UnmodifiableOrderedMapIterator, UnmodifiableSet, UnmodifiableSortedBag, UnmodifiableSortedBidiMap, UnmodifiableSortedMap, UnmodifiableSortedSet

UnmodifiableBag	Decorates another `Bag` to ensure it can't be altered.
UnmodifiableBidiMap	Decorates another `BidiMap` to ensure it can't be altered.
UnmodifiableBuffer	Decorates another `Buffer` to ensure it can't be altered.
UnmodifiableCollection	Decorates another `Collection` to ensure it can't be altered.
UnmodifiableEntrySet	Decorates a map entry `Set` to ensure it can't be altered.
UnmodifiableIterator	Decorates an iterator such that it cannot be modified.
UnmodifiableList	Decorates another `List` to ensure it can't be altered.
UnmodifiableListIterator	Decorates a list iterator such that it cannot be modified.
UnmodifiableMap	Decorates another `Map` to ensure it can't be altered.
UnmodifiableMapEntry	A java.util.Map.Entry Map.Entry that throws UnsupportedOperationException when `setValue` is called.
UnmodifiableMapIterator	Decorates a map iterator such that it cannot be modified.
UnmodifiableOrderedBidiMap	Decorates another `OrderedBidiMap` to ensure it can't be altered.
UnmodifiableOrderedMap	Decorates another `OrderedMap` to ensure it can't be altered.
UnmodifiableOrderedMapIterator	Decorates an ordered map iterator such that it cannot be modified.
UnmodifiableSet	Decorates another `Set` to ensure it can't be altered.
UnmodifiableSortedBag	Decorates another `SortedBag` to ensure it can't be altered.
UnmodifiableSortedBidiMap	Decorates another `SortedBidiMap` to ensure it can't be altered.
UnmodifiableSortedMap	Decorates another `SortedMap` to ensure it can't be altered.
UnmodifiableSortedSet	Decorates another `SortedSet` to ensure it can't be altered.

Class Overview

Marker interface for collections, maps and iterators that are unmodifiable.

This interface enables testing such as:

 if (coll instanceof Unmodifiable) {
   coll = new ArrayList(coll);
 }
 // now we know coll is modifiable

Of course all this only works if you use the Unmodifiable classes defined in this library. If you use the JDK unmodifiable class via java util Collections then the interface won't be there.

Interfaces

Classes

Exceptions

Unmodifiable

Class Overview