public final class UnmodifiableMap extends AbstractMapDecorator implements IterableMap, Unmodifiable, Serializable
Map to ensure it can't be altered.
This class is Serializable from Commons Collections 3.1.
map| Modifier and Type | Method and Description |
|---|---|
void |
clear() |
static Map |
decorate(Map map)
Factory method to create an unmodifiable map.
|
Set |
entrySet() |
Set |
keySet() |
MapIterator |
mapIterator()
Obtains a
MapIterator over the map. |
Object |
put(Object key,
Object value) |
void |
putAll(Map mapToCopy) |
Object |
remove(Object key) |
Collection |
values() |
containsKey, containsValue, equals, get, getMap, hashCode, isEmpty, size, toStringclone, finalize, getClass, notify, notifyAll, wait, wait, waitcontainsKey, containsValue, equals, get, hashCode, isEmpty, sizepublic static Map decorate(Map map)
map - the map to decorate, must not be nullIllegalArgumentException - if map is nullpublic void clear()
clear in interface Mapclear in class AbstractMapDecoratorpublic Object put(Object key, Object value)
put in interface Mapput in class AbstractMapDecoratorpublic void putAll(Map mapToCopy)
putAll in interface MapputAll in class AbstractMapDecoratorpublic Object remove(Object key)
remove in interface Mapremove in class AbstractMapDecoratorpublic MapIterator mapIterator()
IterableMapMapIterator 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");
}
mapIterator in interface IterableMappublic Set entrySet()
entrySet in interface MapentrySet in class AbstractMapDecoratorpublic Set keySet()
keySet in interface MapkeySet in class AbstractMapDecoratorpublic Collection values()
values in interface Mapvalues in class AbstractMapDecoratorCopyright © 2001–2015 The Apache Software Foundation. All rights reserved.