Interface Callable<V>

Type Parameters:: V - the result type of method call

All Known Subinterfaces:: DocumentationTool.DocumentationTask, JavaCompiler.CompilationTask

All Known Implementing Classes:: JavacTask

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 Callable<V>

A task that returns a result and may throw an exception. Implementors define a single method with no arguments called call.

The Callable interface is similar to Runnable, in that both are designed for classes whose instances are potentially executed by another thread. A Runnable, however, does not return a result and cannot throw a checked exception.

The Executors class contains utility methods to convert from other common forms to Callable classes.

Since:: 1.5
See Also:: Executor

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`V`	`call()`	Computes a result, or throws an exception if unable to do so.

Method Detail

call

V call()
throws Exception

Computes a result, or throws an exception if unable to do so.

Returns:: computed result
Throws:: Exception - if unable to compute a result