org.onosproject.store.service

Interface OptionalResult<R,E extends Throwable>

Type Parameters:

R - type of result.

E - exception encountered in generating the result.

public interface OptionalResult<R,E extends Throwable>

A container object which either has a result or an exception.

If a result is present, get() will return it otherwise get() will throw the exception that was encountered in the process of generating the result.

Method Summary

Modifier and Type	Method and Description
R	get() Returns the result or throws an exception if there is no valid result.
boolean	hasValidResult() Returns true if there is a valid result.

Method Detail

get

R get()

Returns the result or throws an exception if there is no valid result.

Returns:

result

hasValidResult

boolean hasValidResult()

Returns true if there is a valid result.

Returns:

true is yes, false otherwise.