Module com.aoapps.collections.transformers

Package com.aoapps.collections.transformers

Class MapEntryTransformer<K,V,KW,VW>

java.lang.Object

com.aoapps.collections.transformers.MapEntryTransformer<K,V,KW,VW>

All Implemented Interfaces:

Transformer<Map.Entry<K,V>,Map.Entry<KW,VW>>

public class MapEntryTransformer<K,V,KW,VW>
extends Object
implements Transformer<Map.Entry<K,V>,Map.Entry<KW,VW>>

Transforms map entries.

Author:

AO Industries, Inc.

Field Summary

Fields

Modifier and Type	Field	Description
protected MapEntryTransformer<KW,VW,K,V>	inverted
protected final Transformer<K,KW>	keyTransformer
protected final Transformer<V,VW>	valueTransformer

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MapEntryTransformer(Transformer<K,KW> keyTransformer, Transformer<V,VW> valueTransformer)

Method Summary

Modifier and Type	Method	Description
TransformMap.TransformEntry<K,V,KW,VW>	fromWrapped(Map.Entry<KW,VW> entry)
MapEntryTransformer<KW,VW,K,V>	invert()
static <K, V, KW, VW> Transformer<Map.Entry<K,V>,Map.Entry<KW,VW>>	of(Transformer<K,KW> keyTransformer, Transformer<V,VW> valueTransformer)	Gets a map entry transformer.
TransformMap.TransformEntry<KW,VW,K,V>	toWrapped(Map.Entry<K,V> entry)
Transformer<Object,Object>	unbounded()	Gets a transformer that wraps and unwraps only when elements are of the wrapper or wrapped types, respectively.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

keyTransformer

protected final Transformer<K,KW> keyTransformer

valueTransformer

protected final Transformer<V,VW> valueTransformer

inverted

protected volatile MapEntryTransformer<KW,VW,K,V> inverted

Constructor Details

MapEntryTransformer

protected MapEntryTransformer(Transformer<K,KW> keyTransformer,
 Transformer<V,VW> valueTransformer)

Method Details

of

public static <K,
V,
KW,
VW>
Transformer<Map.Entry<K,V>,Map.Entry<KW,VW>> of(Transformer<K,KW> keyTransformer,
 Transformer<V,VW> valueTransformer)

Gets a map entry transformer.

toWrapped

public TransformMap.TransformEntry<KW,VW,K,V> toWrapped(Map.Entry<K,V> entry)

Specified by:

toWrapped in interface Transformer<K,V>

fromWrapped

public TransformMap.TransformEntry<K,V,KW,VW> fromWrapped(Map.Entry<KW,VW> entry)

Specified by:

fromWrapped in interface Transformer<K,V>

unbounded

public Transformer<Object,Object> unbounded()

Description copied from interface: Transformer

Gets a transformer that wraps and unwraps only when elements are of the wrapper or wrapped types, respectively. This is useful for legacy APIs that use Object or unbounded generics, such as:

• Collection.contains(java.lang.Object)
• Collection.containsAll(java.util.Collection)
• Map.get(java.lang.Object)

Specified by:

unbounded in interface Transformer<K,V>

invert

public MapEntryTransformer<KW,VW,K,V> invert()

Specified by:

invert in interface Transformer<K,V>