AsyncResult

Encapsulates the result of an asynchronous operation. Many operations in Vert.x APIs provide results back by passing an instance of this in a {@link hunt.net.Handler}. The result can either have failed or succeeded. If it failed then the cause of the failure is available with {@link #cause}. If it succeeded then the actual result is available with {@link #result}

@author <a href="http://tfox.org">Tim Fox</a>

interface AsyncResult (

) {

AsyncResult!(U) map(Function!(T, U) mapper);

AsyncResult!(V) map(V value);

AsyncResult!(V) mapEmpty();

AsyncResult!(T) otherwise(Function!(Throwable, T) mapper);

AsyncResult!(T) otherwise(T value);

AsyncResult!(T) otherwiseEmpty();

}

Members

Functions

cause Throwable cause(): A Throwable describing failure. This will be null if the operation succeeded.
failed bool failed(): Did it fail?
map AsyncResult!(U) map(Function!(T, U) mapper): Apply a {@code mapper} function on this async result.
map AsyncResult!(V) map(V value): Map the result of this async result to a specific {@code value}.
mapEmpty AsyncResult!(V) mapEmpty(): Map the result of this async result to {@code null}.
otherwise AsyncResult!(T) otherwise(Function!(Throwable, T) mapper): Apply a {@code mapper} function on this async result.
otherwise AsyncResult!(T) otherwise(T value): Map the failure of this async result to a specific {@code value}.
otherwiseEmpty AsyncResult!(T) otherwiseEmpty(): Map the failure of this async result to {@code null}.
result T result(): The result of the operation. This will be null if the operation failed.
succeeded bool succeeded(): Did it succeed?

AsyncResult

Members

Functions

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