org.apache.hadoop.hbase.util
Class SoftValueSortedMap<K,V>
java.lang.Object
org.apache.hadoop.hbase.util.SoftValueSortedMap<K,V>
- Type Parameters:
K - key classV - value class
- All Implemented Interfaces:
- Map<K,V>, SortedMap<K,V>
@InterfaceAudience.Public
@InterfaceStability.Stable
public class SoftValueSortedMap<K,V>
- extends Object
- implements SortedMap<K,V>
A SortedMap implementation that uses Soft Reference values
internally to make it play well with the GC when in a low-memory
situation. Use as a cache where you also need SortedMap functionality.
| Nested classes/interfaces inherited from interface java.util.Map |
Map.Entry<K,V> |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
SoftValueSortedMap
public SoftValueSortedMap()
- Constructor
SoftValueSortedMap
public SoftValueSortedMap(Comparator<K> c)
- Constructor
- Parameters:
c - comparator
put
public V put(K key,
V value)
- Specified by:
put in interface Map<K,V>
putAll
public void putAll(Map<? extends K,? extends V> m)
- Specified by:
putAll in interface Map<K,V>
get
public V get(Object key)
- Specified by:
get in interface Map<K,V>
remove
public V remove(Object key)
- Specified by:
remove in interface Map<K,V>
containsKey
public boolean containsKey(Object key)
- Specified by:
containsKey in interface Map<K,V>
containsValue
public boolean containsValue(Object value)
- Specified by:
containsValue in interface Map<K,V>
firstKey
public K firstKey()
- Specified by:
firstKey in interface SortedMap<K,V>
lastKey
public K lastKey()
- Specified by:
lastKey in interface SortedMap<K,V>
headMap
public SoftValueSortedMap<K,V> headMap(K key)
- Specified by:
headMap in interface SortedMap<K,V>
tailMap
public SoftValueSortedMap<K,V> tailMap(K key)
- Specified by:
tailMap in interface SortedMap<K,V>
subMap
public SoftValueSortedMap<K,V> subMap(K fromKey,
K toKey)
- Specified by:
subMap in interface SortedMap<K,V>
lowerValueByKey
public V lowerValueByKey(K key)
isEmpty
public boolean isEmpty()
- Specified by:
isEmpty in interface Map<K,V>
size
public int size()
- Specified by:
size in interface Map<K,V>
clear
public void clear()
- Specified by:
clear in interface Map<K,V>
keySet
public Set<K> keySet()
- Specified by:
keySet in interface Map<K,V>- Specified by:
keySet in interface SortedMap<K,V>
comparator
public Comparator<? super K> comparator()
- Specified by:
comparator in interface SortedMap<K,V>
entrySet
public Set<Map.Entry<K,V>> entrySet()
- Specified by:
entrySet in interface Map<K,V>- Specified by:
entrySet in interface SortedMap<K,V>
values
public Collection<V> values()
- Specified by:
values in interface Map<K,V>- Specified by:
values in interface SortedMap<K,V>
Copyright © 2013 The Apache Software Foundation. All Rights Reserved.