Class UnmodifiableCollection
- java.lang.Object
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- org.apache.commons.collections.collection.AbstractCollectionDecorator
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- org.apache.commons.collections.collection.AbstractSerializableCollectionDecorator
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- org.apache.commons.collections.collection.UnmodifiableCollection
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Iterable
,java.util.Collection
,Unmodifiable
public final class UnmodifiableCollection extends AbstractSerializableCollectionDecorator implements Unmodifiable
Decorates anotherCollection
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:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description private static long
serialVersionUID
Serialization version-
Fields inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
collection
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Constructor Summary
Constructors Modifier Constructor Description private
UnmodifiableCollection(java.util.Collection coll)
Constructor that wraps (not copies).
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
add(java.lang.Object object)
boolean
addAll(java.util.Collection coll)
void
clear()
static java.util.Collection
decorate(java.util.Collection coll)
Factory method to create an unmodifiable collection.java.util.Iterator
iterator()
boolean
remove(java.lang.Object object)
boolean
removeAll(java.util.Collection coll)
boolean
retainAll(java.util.Collection coll)
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Methods inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
contains, containsAll, equals, getCollection, hashCode, isEmpty, size, toArray, toArray, toString
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Field Detail
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serialVersionUID
private static final long serialVersionUID
Serialization version- See Also:
- Constant Field Values
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Method Detail
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decorate
public static java.util.Collection decorate(java.util.Collection coll)
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:
java.lang.IllegalArgumentException
- if collection is null
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iterator
public java.util.Iterator iterator()
- Specified by:
iterator
in interfacejava.util.Collection
- Specified by:
iterator
in interfacejava.lang.Iterable
- Overrides:
iterator
in classAbstractCollectionDecorator
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add
public boolean add(java.lang.Object object)
- Specified by:
add
in interfacejava.util.Collection
- Overrides:
add
in classAbstractCollectionDecorator
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addAll
public boolean addAll(java.util.Collection coll)
- Specified by:
addAll
in interfacejava.util.Collection
- Overrides:
addAll
in classAbstractCollectionDecorator
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clear
public void clear()
- Specified by:
clear
in interfacejava.util.Collection
- Overrides:
clear
in classAbstractCollectionDecorator
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remove
public boolean remove(java.lang.Object object)
- Specified by:
remove
in interfacejava.util.Collection
- Overrides:
remove
in classAbstractCollectionDecorator
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removeAll
public boolean removeAll(java.util.Collection coll)
- Specified by:
removeAll
in interfacejava.util.Collection
- Overrides:
removeAll
in classAbstractCollectionDecorator
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retainAll
public boolean retainAll(java.util.Collection coll)
- Specified by:
retainAll
in interfacejava.util.Collection
- Overrides:
retainAll
in classAbstractCollectionDecorator
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