org.mapdb

Interface MapExtra<K,V>

All Known Subinterfaces:

ConcurrentNavigableMapExtra<K,V>

All Known Implementing Classes:

BTreeMap, HTreeMap, SortedTableMap

public MapExtra<K,V>

Extra methods for Map interface

Method Summary

Modifier and Type	Method and Description
void	forEach(java.util.function.BiConsumer<? super K,? super V> action)
void	forEachKey(Function1<? super K,Unit> procedure)
void	forEachValue(Function1<? super V,Unit> procedure)
Serializer<K>	getKeySerializer()
Serializer<V>	getValueSerializer()
boolean	isClosed()
boolean	putIfAbsentBoolean(K key, V value) Atomically associates the specified key with the given value if it is not already associated with a value.
long	sizeLong() map size as long number

Method Detail

sizeLong

long sizeLong()

map size as long number

putIfAbsentBoolean

boolean putIfAbsentBoolean(K key,
                           V value)

Atomically associates the specified key with the given value if it is not already associated with a value.

This is equivalent to: if(cache.containsKey(key)){}cache.put(key,value);return true;}else{return false;} * except that the action is performed atomically.

Throws:

isClosed

boolean isClosed()

forEachKey

void forEachKey(Function1<? super K,Unit> procedure)

forEachValue

void forEachValue(Function1<? super V,Unit> procedure)

forEach

void forEach(java.util.function.BiConsumer<? super K,? super V> action)

getKeySerializer

Serializer<K> getKeySerializer()

getValueSerializer

Serializer<V> getValueSerializer()