Example usage for com.google.common.base Optional interface-usage

Introduction

In this page you can find the example usage for com.google.common.base Optional interface-usage.

Usage

From source file de.kuschku.util.backports.Absent.java

public class Absent<T> implements Optional<T> {
    Absent() {

    }

    @NonNull

From source file de.kuschku.util.backports.Present.java

public class Present<T> implements Optional<T> {
    private final T value;

    Present(T value) {
        this.value = value;
    }

From source file com.hartveld.queryable.optional.None.java

public class None<T> implements Optional<T> {

    private static final None<?> SINGLETON = new None();

    static <T> None<T> instance() {
        return (None<T>) SINGLETON;