Class UnmodifiableOrderedMap
- java.lang.Object
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- org.apache.commons.collections.map.AbstractMapDecorator
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- org.apache.commons.collections.map.AbstractOrderedMapDecorator
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- org.apache.commons.collections.map.UnmodifiableOrderedMap
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- All Implemented Interfaces:
Serializable
,Map
,IterableMap
,OrderedMap
,Unmodifiable
public final class UnmodifiableOrderedMap extends AbstractOrderedMapDecorator implements Unmodifiable, Serializable
Decorates anotherOrderedMap
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) $
- Author:
- Stephen Colebourne
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class org.apache.commons.collections.map.AbstractMapDecorator
map
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clear()
static OrderedMap
decorate(OrderedMap map)
Factory method to create an unmodifiable sorted map.Set
entrySet()
Set
keySet()
MapIterator
mapIterator()
Obtains aMapIterator
over the map.OrderedMapIterator
orderedMapIterator()
Obtains anOrderedMapIterator
over the map.Object
put(Object key, Object value)
void
putAll(Map mapToCopy)
Object
remove(Object key)
Collection
values()
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Methods inherited from class org.apache.commons.collections.map.AbstractOrderedMapDecorator
firstKey, getOrderedMap, lastKey, nextKey, previousKey
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Methods inherited from class org.apache.commons.collections.map.AbstractMapDecorator
containsKey, containsValue, equals, get, getMap, hashCode, isEmpty, size, toString
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, equals, forEach, get, getOrDefault, hashCode, isEmpty, merge, putIfAbsent, remove, replace, replace, replaceAll, size
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Method Detail
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decorate
public static OrderedMap decorate(OrderedMap map)
Factory method to create an unmodifiable sorted map.- Parameters:
map
- the map to decorate, must not be null- Throws:
IllegalArgumentException
- if map is null
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mapIterator
public MapIterator mapIterator()
Description copied from interface:IterableMap
Obtains aMapIterator
over the map.A map iterator is an efficient way of iterating over maps. There is no need to access the entry set or cast to Map Entry objects.
IterableMap map = new HashedMap(); MapIterator it = map.mapIterator(); while (it.hasNext()) { Object key = it.next(); Object value = it.getValue(); it.setValue("newValue"); }
- Specified by:
mapIterator
in interfaceIterableMap
- Overrides:
mapIterator
in classAbstractOrderedMapDecorator
- Returns:
- a map iterator
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orderedMapIterator
public OrderedMapIterator orderedMapIterator()
Description copied from interface:OrderedMap
Obtains anOrderedMapIterator
over the map.A ordered map iterator is an efficient way of iterating over maps in both directions.
BidiMap map = new TreeBidiMap(); MapIterator it = map.mapIterator(); while (it.hasNext()) { Object key = it.next(); Object value = it.getValue(); it.setValue("newValue"); Object previousKey = it.previous(); }
- Specified by:
orderedMapIterator
in interfaceOrderedMap
- Overrides:
orderedMapIterator
in classAbstractOrderedMapDecorator
- Returns:
- a map iterator
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clear
public void clear()
- Specified by:
clear
in interfaceMap
- Overrides:
clear
in classAbstractMapDecorator
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put
public Object put(Object key, Object value)
- Specified by:
put
in interfaceMap
- Overrides:
put
in classAbstractMapDecorator
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putAll
public void putAll(Map mapToCopy)
- Specified by:
putAll
in interfaceMap
- Overrides:
putAll
in classAbstractMapDecorator
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remove
public Object remove(Object key)
- Specified by:
remove
in interfaceMap
- Overrides:
remove
in classAbstractMapDecorator
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entrySet
public Set entrySet()
- Specified by:
entrySet
in interfaceMap
- Overrides:
entrySet
in classAbstractMapDecorator
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keySet
public Set keySet()
- Specified by:
keySet
in interfaceMap
- Overrides:
keySet
in classAbstractMapDecorator
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values
public Collection values()
- Specified by:
values
in interfaceMap
- Overrides:
values
in classAbstractMapDecorator
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