com.atlassian.jira.servermetrics

Class ServletSafeComponentReference<T>

java.lang.Object

com.atlassian.jira.servermetrics.ServletSafeComponentReference<T>

Type Parameters:

T -

All Implemented Interfaces:

Supplier<Optional<T>>

@ParametersAreNonnullByDefault
public class ServletSafeComponentReference<T>
extends Object
implements Supplier<Optional<T>>

Component reference that is safe to use from servlets, filters, etc... It doesn't hold reference but retrieves it every time.
It uses ComponentAccessor.getComponentSafely(Class) to access component.

Constructor Summary

Constructors

Constructor and Description
ServletSafeComponentReference(Class<T> componentClass)

Method Summary

Modifier and Type	Method and Description
static <X> ServletSafeComponentReference<X>	build(Class<X> componentClass)
Optional<T>	get() Produce an object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ServletSafeComponentReference

public ServletSafeComponentReference(@Nonnull
                                     Class<T> componentClass)

Method Detail

get

public Optional<T> get()

Description copied from interface: Supplier

Produce an object. Retrieve an instance of the appropriate type. The returned object may or may not be a new instance, depending on the implementation.

Specified by:

get in interface Supplier<Optional<T>>

Returns:

the product, may be null if there are no objects available.

build

public static <X> ServletSafeComponentReference<X> build(Class<X> componentClass)