K - the type of the keys in this mapV - the type of the values in this mappublic class TransformedMultiValuedMap<K,V> extends AbstractMultiValuedMapDecorator<K,V>
MultiValuedMap to transform objects that are added.
This class affects the MultiValuedMap put methods. Thus objects must be removed or searched for using their transformed form. For example, if the transformation converts Strings to Integers, you must use the Integer form to remove objects.
Note that TransformedMultiValuedMap is not synchronized and is not thread-safe.
| Modifier | Constructor and Description |
|---|---|
protected |
TransformedMultiValuedMap(MultiValuedMap<K,V> map,
Transformer<? super K,? extends K> keyTransformer,
Transformer<? super V,? extends V> valueTransformer)
Constructor that wraps (not copies).
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
put(K key,
V value)
Adds a key-value mapping to this multi-valued map.
|
boolean |
putAll(K key,
Iterable<? extends V> values)
Adds a mapping to the specified key for all values contained in the given Iterable.
|
boolean |
putAll(Map<? extends K,? extends V> map)
Copies all mappings from the specified map to this multi-valued map
(optional operation).
|
boolean |
putAll(MultiValuedMap<? extends K,? extends V> map)
Copies all mappings from the specified map to this multi-valued map
(optional operation).
|
static <K,V> TransformedMultiValuedMap<K,V> |
transformedMap(MultiValuedMap<K,V> map,
Transformer<? super K,? extends K> keyTransformer,
Transformer<? super V,? extends V> valueTransformer)
Factory method to create a transforming MultiValuedMap that will
transform existing contents of the specified map.
|
static <K,V> TransformedMultiValuedMap<K,V> |
transformingMap(MultiValuedMap<K,V> map,
Transformer<? super K,? extends K> keyTransformer,
Transformer<? super V,? extends V> valueTransformer)
Factory method to create a transforming MultiValuedMap.
|
protected K |
transformKey(K object)
Transforms a key.
|
protected V |
transformValue(V object)
Transforms a value.
|
asMap, clear, containsKey, containsMapping, containsValue, decorated, entries, equals, get, hashCode, isEmpty, keys, keySet, mapIterator, remove, removeMapping, size, toString, valuesprotected TransformedMultiValuedMap(MultiValuedMap<K,V> map, Transformer<? super K,? extends K> keyTransformer, Transformer<? super V,? extends V> valueTransformer)
If there are any elements already in the collection being decorated, they are NOT transformed.
map - the MultiValuedMap to decorate, may not be nullkeyTransformer - the transformer to use for key conversion, null means no conversionvalueTransformer - the transformer to use for value conversion, null means no conversionNullPointerException - if map is nullpublic static <K,V> TransformedMultiValuedMap<K,V> transformingMap(MultiValuedMap<K,V> map, Transformer<? super K,? extends K> keyTransformer, Transformer<? super V,? extends V> valueTransformer)
If there are any elements already in the map being decorated, they are
NOT transformed. Contrast this with
transformedMap(MultiValuedMap, Transformer, Transformer).
K - the key typeV - the value typemap - the MultiValuedMap to decorate, may not be nullkeyTransformer - the transformer to use for key conversion, null means no conversionvalueTransformer - the transformer to use for value conversion, null means no conversionNullPointerException - if map is nullpublic static <K,V> TransformedMultiValuedMap<K,V> transformedMap(MultiValuedMap<K,V> map, Transformer<? super K,? extends K> keyTransformer, Transformer<? super V,? extends V> valueTransformer)
If there are any elements already in the map being decorated, they will
be transformed by this method. Contrast this with
transformingMap(MultiValuedMap, Transformer, Transformer).
K - the key typeV - the value typemap - the MultiValuedMap to decorate, may not be nullkeyTransformer - the transformer to use for key conversion, null means no conversionvalueTransformer - the transformer to use for value conversion, null means no conversionNullPointerException - if map is nullprotected K transformKey(K object)
The transformer itself may throw an exception if necessary.
object - the object to transformprotected V transformValue(V object)
The transformer itself may throw an exception if necessary.
object - the object to transformpublic boolean put(K key, V value)
MultiValuedMap
Unlike a normal Map the previous value is not replaced.
Instead the new value is added to the collection stored against the key.
Depending on the collection type used, duplicate key-value mappings may
be allowed.
The method will return true if the size of the multi-valued map
has been increased because of this operation.
put in interface MultiValuedMap<K,V>put in class AbstractMultiValuedMapDecorator<K,V>key - the key to store againstvalue - the value to add to the collection at the keypublic boolean putAll(K key, Iterable<? extends V> values)
MultiValuedMapputAll in interface MultiValuedMap<K,V>putAll in class AbstractMultiValuedMapDecorator<K,V>key - the key to store againstvalues - the values to add to the collection at the key, may not be nullpublic boolean putAll(Map<? extends K,? extends V> map)
MultiValuedMap
The effect of this call is equivalent to that of calling
put(k, v) on this map once for each mapping
from key k to value v in the specified map.
The behavior of this operation is undefined if the specified map is modified while the operation is in progress.
putAll in interface MultiValuedMap<K,V>putAll in class AbstractMultiValuedMapDecorator<K,V>map - mappings to be stored in this map, may not be nullpublic boolean putAll(MultiValuedMap<? extends K,? extends V> map)
MultiValuedMap
The effect of this call is equivalent to that of calling
put(k, v) on this map once for each
mapping from key k to value v in the specified map.
The behavior of this operation is undefined if the specified map is modified while the operation is in progress.
putAll in interface MultiValuedMap<K,V>putAll in class AbstractMultiValuedMapDecorator<K,V>map - mappings to be stored in this map, may not be nullCopyright © 2001–2018 The Apache Software Foundation. All rights reserved.