Module org.praxislive.core

Package org.praxislive.core

Class Lookup.Empty

java.lang.Object

org.praxislive.core.Lookup.Empty

All Implemented Interfaces:

Lookup

Enclosing interface:

Lookup

public static class Lookup.Empty
extends Object
implements Lookup

Nested Class Summary

Nested classes/interfaces inherited from interface org.praxislive.core.Lookup

Lookup.Empty, Lookup.ObjectLookup, Lookup.Provider

Field Summary

Fields inherited from interface org.praxislive.core.Lookup

EMPTY, SYSTEM

Constructor Summary

Constructors

Constructor	Description
Empty()

Method Summary

Modifier and Type	Method	Description
<T> Optional<T>	find(Class<T> type)	Search for the first implementation of the given type.
<T> Stream<T>	findAll(Class<T> type)	Search for all implementations of the given type.

Methods inherited from class java.lang.Object

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

Constructor Details

Empty

public Empty()

Method Details

find

public <T> Optional<T> find(Class<T> type)

Description copied from interface: Lookup

Search for the first implementation of the given type. Returns an Optional wrapping an instance of the given Class, or Optional.EMPTY if none exists.

Specified by:

find in interface Lookup

Type Parameters:

T - service type to lookup

Parameters:

type - class of service to lookup

Returns:

Optional wrapping first instance of type, or an empty Optional if not found

findAll

public <T> Stream<T> findAll(Class<T> type)

Description copied from interface: Lookup

Search for all implementations of the given type.

Specified by:

findAll in interface Lookup

Type Parameters:

T - service type to lookup

Parameters:

type - class of service to lookup

Returns:

Stream of all implementations of the given type