org.openimaj.util.function.context

Class ContextListTransform<T>

java.lang.Object

org.openimaj.util.function.context.ContextListTransform<T>

Type Parameters:

T - Type of elements in the Context being extracted

All Implemented Interfaces:

Function<List<Context>,List<T>>

public class ContextListTransform<T>
extends Object
implements Function<List<Context>,List<T>>

Transform a List of Context instances to a stream of List of T. The extraction strategy is used on each item in the list.

Author:

Sina Samangooei (ss@ecs.soton.ac.uk)

Constructor Summary

Constructors

Constructor and Description
ContextListTransform(ContextExtractor<T> extract) Construct with the given extractor.
ContextListTransform(String key) Construct using a KeyContextExtractor with the given key.

Method Summary

Modifier and Type	Method and Description
List<T>	apply(List<Context> in) Apply the function to the input argument and return the result.

Methods inherited from class java.lang.Object

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

Constructor Detail

ContextListTransform

public ContextListTransform(ContextExtractor<T> extract)

Construct with the given extractor.

Parameters:

extract - the extractor

ContextListTransform

public ContextListTransform(String key)

Construct using a KeyContextExtractor with the given key.

Parameters:

key - the key to extract

Method Detail

apply

public List<T> apply(List<Context> in)

Description copied from interface: Function

Apply the function to the input argument and return the result.

Specified by:

apply in interface Function<List<Context>,List<T>>

Parameters:

in - the input object

Returns:

the result of the function