com.tavianator.sangria.lazy

Class Lazy<T>

java.lang.Object

com.tavianator.sangria.lazy.Lazy<T>

public final class Lazy<T>
extends Object

A lazily-loaded dependency. Like a Provider, calling get() will produce an instance of T. Unlike a Provider, the same instance will be returned for every future call to get(). Different Lazy instances are independent and will return different instances from get().

Lazy works automatically for unqualified bindings, as long as just-in-time bindings are enabled. For qualified bindings, or if explicit bindings are requred, use LazyBinder:

 // Either separately...
 bind(Dependency.class)
         .annotatedWith(Names.named("name"))
         .to(RealDependency.class);

 LazyBinder.create(binder())
         .bind(Dependency.class)
         .annotatedWith(Names.named("name"));

 // ... or in one go
 LazyBinder.create(binder())
         .bind(Dependency.class)
         .annotatedWith(Names.named("name"))
         .to(RealDependency.class);

 ...

  @Inject  @Named("name") Lazy<Dependency> lazy;
 

Since:

1.2

Version:

1.2

Author:

Tavian Barnes (tavianator@tavianator.com)

Method Summary

Modifier and Type	Method and Description
T	get()

Methods inherited from class java.lang.Object

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

Method Detail

get

public T get()

Returns:

A lazily-produced value of type T.