Interface TaskCallback<V extends @Nullable Object, E extends Exception>

Type Parameters:

V - the returned value type, if any

E - the exception propagated, if any

All Superinterfaces:

Callable<V>

All Known Implementing Classes:

RetryTask

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface TaskCallback<V extends @Nullable Object, E extends Exception>
extends Callable<V>

Variant of Callable with a flexible exception signature that can be adapted in the SyncTaskExecutor.execute(TaskCallback) method signature for propagating specific exception types only.

An implementation of this interface can also be passed into any Callback-based method such as AsyncTaskExecutor.submit(Callable) or AsyncTaskExecutor.submitCompletable(Callable). It is just capable of adapting to flexible exception propagation in caller signatures as well.

Since:

7.0

Author:

Juergen Hoeller

See Also:

• SyncTaskExecutor.execute(TaskCallback)

Method Summary

Modifier and Type	Method	Description
V	call()
static TaskCallback<@Nullable Void, RuntimeException>	from(Runnable task)	Derive a TaskCallback from the given Runnable.
static <V> TaskCallback<V, Exception>	from(Callable<V> task)	Derive a TaskCallback from the given Callable.

Method Details

call

V call()
throws E

Specified by:

call in interface Callable<V extends @Nullable Object>

Throws:

E

from

static <V> TaskCallback<V, Exception> from(Callable<V> task)

Derive a TaskCallback from the given Callable.

Since:

7.0.4

from

static TaskCallback<@Nullable Void, RuntimeException> from(Runnable task)

Derive a TaskCallback from the given Runnable.

Since:

7.0.4