Class UnmodifiableCollection
java.lang.Object
org.apache.commons.collections.collection.AbstractCollectionDecorator
org.apache.commons.collections.collection.AbstractSerializableCollectionDecorator
org.apache.commons.collections.collection.UnmodifiableCollection
- All Implemented Interfaces:
Serializable
,Iterable
,Collection
,Unmodifiable
public final class UnmodifiableCollection
extends AbstractSerializableCollectionDecorator
implements Unmodifiable
Decorates another
Collection
to ensure it can't be altered.
This class is Serializable from Commons Collections 3.1.
- Since:
- Commons Collections 3.0
- Version:
- $Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate static final long
Serialization versionFields inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
collection
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Constructor Summary
ConstructorsModifierConstructorDescriptionprivate
Constructor that wraps (not copies). -
Method Summary
Modifier and TypeMethodDescriptionboolean
boolean
addAll
(Collection coll) void
clear()
static Collection
decorate
(Collection coll) Factory method to create an unmodifiable collection.iterator()
boolean
boolean
removeAll
(Collection coll) boolean
retainAll
(Collection coll) Methods inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
contains, containsAll, equals, getCollection, hashCode, isEmpty, size, toArray, toArray, toString
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface java.util.Collection
parallelStream, removeIf, spliterator, stream
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Field Details
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serialVersionUID
private static final long serialVersionUIDSerialization version- See Also:
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Constructor Details
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UnmodifiableCollection
Constructor that wraps (not copies).- Parameters:
coll
- the collection to decorate, must not be null- Throws:
IllegalArgumentException
- if collection is null
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Method Details
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decorate
Factory method to create an unmodifiable collection.If the collection passed in is already unmodifiable, it is returned.
- Parameters:
coll
- the collection to decorate, must not be null- Returns:
- an unmodifiable collection
- Throws:
IllegalArgumentException
- if collection is null
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iterator
- Specified by:
iterator
in interfaceCollection
- Specified by:
iterator
in interfaceIterable
- Overrides:
iterator
in classAbstractCollectionDecorator
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add
- Specified by:
add
in interfaceCollection
- Overrides:
add
in classAbstractCollectionDecorator
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addAll
- Specified by:
addAll
in interfaceCollection
- Overrides:
addAll
in classAbstractCollectionDecorator
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clear
public void clear()- Specified by:
clear
in interfaceCollection
- Overrides:
clear
in classAbstractCollectionDecorator
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remove
- Specified by:
remove
in interfaceCollection
- Overrides:
remove
in classAbstractCollectionDecorator
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removeAll
- Specified by:
removeAll
in interfaceCollection
- Overrides:
removeAll
in classAbstractCollectionDecorator
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retainAll
- Specified by:
retainAll
in interfaceCollection
- Overrides:
retainAll
in classAbstractCollectionDecorator
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