com.asakusafw.runtime.flow.join

Interface LookUpTable<T>

Type Parameters:

T - the element type

All Known Implementing Classes:

VolatileLookUpTable

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface LookUpTable<T>

An abstract super interface of looking up a list of objects.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	LookUpTable.Builder<T> A builder for building LookUpTable.

Method Summary

Modifier and Type	Method and Description
List<T>	get(LookUpKey key) Returns a list of objects for the corresponding key.

Method Detail

get

List<T> get(LookUpKey key)
     throws IOException

Returns a list of objects for the corresponding key.

Parameters:

key - the lookup key

Returns:

the related list of objects, or an empty list if there are no corresponding objects

Throws:

IOException - if error occurred while looking up objects

IllegalArgumentException - if the parameter is null