Package org.glassfish.jersey.internal.inject

Class Injections

java.lang.Object

org.glassfish.jersey.internal.inject.Injections

public class Injections
extends java.lang.Object

Injection binding utility methods.

Constructor Summary

Constructors

Constructor	Description
Injections()

Method Summary

Modifier and Type	Method	Description
static InjectionManager	createInjectionManager()	Creates a InjectionManager without parent and initial binder.
static InjectionManager	createInjectionManager(java.lang.Object parent)	Creates an unnamed, parented InjectionManager.
static InjectionManager	createInjectionManager(Binder binder)	Creates a InjectionManager with initial binder that is immediately registered.
static <T> T	getOrCreate(InjectionManager injectionManager, java.lang.Class<T> clazz)	Get the class by contract or create and inject a new instance.
private static InjectionManagerFactory	lookupInjectionManagerFactory()
private static <T> java.util.Optional<T>	lookupService(java.lang.Class<T> clazz)	Look for a service of given type.

Methods inherited from class java.lang.Object

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

Constructor Detail

Injections

public Injections()

Method Detail

createInjectionManager

public static InjectionManager createInjectionManager()

Creates a InjectionManager without parent and initial binder.

Returns:

a injection manager with all the bindings.

createInjectionManager

public static InjectionManager createInjectionManager(Binder binder)

Creates a InjectionManager with initial binder that is immediately registered.

Parameters:

binder - custom the binder.

Returns:

a injection manager with all the bindings.

createInjectionManager

public static InjectionManager createInjectionManager(java.lang.Object parent)

Creates an unnamed, parented InjectionManager. In case the parent injection manager is not specified, the locator will not be parented.

Parameters:

parent - The parent of this injection manager. Services can be found in the parent (and all grand-parents). May be null. An underlying DI provider checks whether the parent is in a proper type.

Returns:

an injection manager with all the bindings.

lookupInjectionManagerFactory

private static InjectionManagerFactory lookupInjectionManagerFactory()

lookupService

private static <T> java.util.Optional<T> lookupService(java.lang.Class<T> clazz)

Look for a service of given type. If more then one service is found the method sorts them are returns the one with highest priority.

Type Parameters:

T - type of service to look for.

Parameters:

clazz - type of service to look for.

Returns:

instance of service with highest priority or null if service of given type cannot be found.

See Also:

Priority

getOrCreate

public static <T> T getOrCreate(InjectionManager injectionManager,
                                java.lang.Class<T> clazz)

Get the class by contract or create and inject a new instance.

Type Parameters:

T - instance type.

Parameters:

injectionManager - DI injection manager.

clazz - class of the instance to be provider.

Returns:

instance of the class either provided as a service or created and injected by HK2.