Class MapTransformer<T,R> 
java.lang.Object
org.apache.commons.collections4.functors.MapTransformer<T,R> 
- Type Parameters:
- T- the type of the input to the function.
- R- the type of the result of the function.
- All Implemented Interfaces:
- Serializable,- Function<T,,- R> - Transformer<T,- R> 
Transformer implementation that returns the value held in a specified map
 using the input parameter as a key.
- Since:
- 3.0
- See Also:
- 
Method SummaryModifier and TypeMethodDescriptiongetMap()Gets the map to lookup in.static <I,O> Transformer <I, O> mapTransformer(Map<? super I, ? extends O> map) Creates the transformer.Transforms the input to result by looking it up in aMap.Methods inherited from class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.apache.commons.collections4.Transformerapply
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Method Details- 
mapTransformerCreates the transformer.If the map is null, a transformer that always returns null is returned. - Type Parameters:
- I- the input type
- O- the output type
- Parameters:
- map- the map, not cloned
- Returns:
- the transformer
 
- 
getMap
- 
transform
 
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