Module io.helidon.faulttolerance

Package io.helidon.faulttolerance

Class FtSupport.AsyncMethod

java.lang.Object

io.helidon.faulttolerance.FtSupport.AsyncMethod

All Implemented Interfaces:

Interception.ElementInterceptor, Interception.Interceptor

Enclosing class:

FtSupport

public abstract static class FtSupport.AsyncMethod
extends Object
implements Interception.ElementInterceptor

A base interceptor service implementation to support Async.

Nested Class Summary

Nested classes/interfaces inherited from interface io.helidon.service.registry.Interception.Interceptor

Interception.Interceptor.Chain<V>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AsyncMethod()	Constructor with no side effects.

Method Summary

Modifier and Type	Method	Description
protected abstract Async	async()	Provide an async instance that should be used with this method.
<V> V	proceed(InterceptionContext ctx, Interception.Interceptor.Chain<V> chain, Object... args)	Called during interception of the target V.

Methods inherited from class java.lang.Object

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

Constructor Details

AsyncMethod

protected AsyncMethod()

Constructor with no side effects.

Method Details

proceed

public <V> V proceed(InterceptionContext ctx,
 Interception.Interceptor.Chain<V> chain,
 Object... args)
              throws Exception

Description copied from interface: Interception.Interceptor

Called during interception of the target V. The implementation typically should finish with the call to Interception.Interceptor.Chain.proceed(java.lang.Object[]).

Specified by:

proceed in interface Interception.Interceptor

Type Parameters:

V - the return value type (or Void for void method elements)

Parameters:

ctx - the invocation context

chain - the chain to call proceed on

args - the arguments to the call

Returns:

the return value to the caller

Throws:

Exception - if there are any checked exceptions thrown by the underlying method, or any runtime exception thrown

async

protected abstract Async async()

Provide an async instance that should be used with this method. If the Ft.Async annotation contains a name, we will attempt to obtain the named instance from registry. If such a named instance does not exist a new instance would be created from the annotation.

Returns:

async instance