public class FixedSizeSortedMap extends AbstractSortedMapDecorator implements java.util.SortedMap, BoundedMap, java.io.Serializable
SortedMap
to fix the size blocking add/remove.
Any action that would change the size of the map is disallowed. The put method is allowed to change the value associated with an existing key however.
If trying to remove or clear the map, an UnsupportedOperationException is thrown. If trying to put a new mapping into the map, an IllegalArgumentException is thrown. This is because the put method can succeed if the mapping's key already exists in the map, so the put method is not always unsupported.
Note that FixedSizeSortedMap is not synchronized and is not thread-safe.
If you wish to use this map from multiple threads concurrently, you must use
appropriate synchronization. The simplest approach is to wrap this map
using Collections.synchronizedSortedMap(java.util.SortedMap<K, V>)
. This class may throw
exceptions when accessed by concurrent threads without synchronization.
This class is Serializable from Commons Collections 3.1.
Modifier and Type | Method and Description |
---|---|
void |
clear() |
static java.util.SortedMap |
decorate(java.util.SortedMap map)
Factory method to create a fixed size sorted map.
|
java.util.Set |
entrySet() |
java.util.SortedMap |
headMap(java.lang.Object toKey) |
boolean |
isFull()
Returns true if this map is full and no new elements can be added.
|
java.util.Set |
keySet() |
int |
maxSize()
Gets the maximum size of the map (the bound).
|
java.lang.Object |
put(java.lang.Object key,
java.lang.Object value) |
void |
putAll(java.util.Map mapToCopy) |
java.lang.Object |
remove(java.lang.Object key) |
java.util.SortedMap |
subMap(java.lang.Object fromKey,
java.lang.Object toKey) |
java.util.SortedMap |
tailMap(java.lang.Object fromKey) |
java.util.Collection |
values() |
comparator, firstKey, lastKey
containsKey, containsValue, equals, get, hashCode, isEmpty, size, toString
public static java.util.SortedMap decorate(java.util.SortedMap map)
map
- the map to decorate, must not be nulljava.lang.IllegalArgumentException
- if map is nullpublic java.lang.Object put(java.lang.Object key, java.lang.Object value)
put
in interface java.util.Map
put
in class AbstractMapDecorator
public void putAll(java.util.Map mapToCopy)
putAll
in interface java.util.Map
putAll
in class AbstractMapDecorator
public void clear()
clear
in interface java.util.Map
clear
in class AbstractMapDecorator
public java.lang.Object remove(java.lang.Object key)
remove
in interface java.util.Map
remove
in class AbstractMapDecorator
public java.util.Set entrySet()
entrySet
in interface java.util.Map
entrySet
in interface java.util.SortedMap
entrySet
in class AbstractMapDecorator
public java.util.Set keySet()
keySet
in interface java.util.Map
keySet
in interface java.util.SortedMap
keySet
in class AbstractMapDecorator
public java.util.Collection values()
values
in interface java.util.Map
values
in interface java.util.SortedMap
values
in class AbstractMapDecorator
public java.util.SortedMap subMap(java.lang.Object fromKey, java.lang.Object toKey)
subMap
in interface java.util.SortedMap
subMap
in class AbstractSortedMapDecorator
public java.util.SortedMap headMap(java.lang.Object toKey)
headMap
in interface java.util.SortedMap
headMap
in class AbstractSortedMapDecorator
public java.util.SortedMap tailMap(java.lang.Object fromKey)
tailMap
in interface java.util.SortedMap
tailMap
in class AbstractSortedMapDecorator
public boolean isFull()
BoundedMap
isFull
in interface BoundedMap
true
if the map is fullpublic int maxSize()
BoundedMap
maxSize
in interface BoundedMap
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