org.apache.commons.collections.functors
Class MapTransformer
- Serializable, Transformer
public final class MapTransformer
Transformer implementation that returns the value held in a specified map
using the input parameter as a key.
Version:
- Stephen Colebourne
- Commons Collections 3.0
static Transformer | getInstance(Map map) - Factory to create the transformer.
|
Map | getMap() - Gets the map to lookup in.
|
Object | transform(Object input) - Transforms the input to result by looking it up in a
Map .
|
getInstance
public static Transformer getInstance(Map map)
Factory to create the transformer.
If the map is null, a transformer that always returns null is returned.
map
- the map, not cloned
- the transformer
getMap
public Map getMap()
Gets the map to lookup in.
- the map
- Commons Collections 3.1
transform
public Object transform(Object input)
Transforms the input to result by looking it up in a Map
.
- transform in interface Transformer
input
- the input object to transform
- the transformed result
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