Package com.leakyabstractions.result.core

package com.leakyabstractions.result.core

A Java library to handle success and failure without exceptions

Result Library for Java

Creating Results

There are several ways to create result objects.

Successful Results

A successful result contains a non-null value produced by an operation when everything works as intended.

• Results.success(S)

Failed Results

On the other hand, a failed result holds a value representing the problem that prevented the operation from completing.

• Results.failure(S)

Results Based on Nullable Values

When we need to create results that depend on a possibly null value. If the first argument is null, then the second one will be used to create a failed result. The second argument can be either a failure value or a function that produces a failure value.

• Results.ofNullable(S, F)
• Results.ofNullable(S, Supplier<F>)

Results Based on Optionals

We can also create results that depend on an Optional value. If the first argument is an empty optional, then the second one will be used to create a failed result. The second argument can be a Supplier too.

• Results.ofOptional(Optional<S>, F)
• Results.ofNullable(Optional<S>, Supplier<F>)

Results Based on Callables

Finally, if we have a task that may either return a success value or throw an exception, we can encapsulate it as a result so we don't need to use a try-catch block.

• Results.ofCallable(Callable<S>).

Author:

Guillermo Calvo

See Also:

• Quick guide
• Free book
• Source code
• Results
• Result

Classes

Class	Description
Results	This class consists exclusively of static methods that return Result instances.