Package com.comphenix.protocol.utility

Class Optionals

java.lang.Object

com.comphenix.protocol.utility.Optionals

public final class Optionals
extends Object

Utility methods for operating with Optionals

Constructor Summary

Constructors

Constructor	Description
Optionals()

Method Summary

Modifier and Type	Method	Description
static <T> boolean	Equals(Optional<T> optional, Class<?> contents)	Check if the optional has a value and its value equals the provided value
static <T> Optional<T>	or(Optional<T> primary, Supplier<Optional<T>> secondary)	Chains two optionals together by returning the secondary optional if the primary does not contain a value
static <T> boolean	TestIfPresent(Optional<T> optional, Predicate<T> predicate)	Evaluates the provided predicate against the optional only if it is present

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Optionals

public Optionals()

Method Details

or

public static <T> Optional<T> or(Optional<T> primary,
 Supplier<Optional<T>> secondary)

Chains two optionals together by returning the secondary optional if the primary does not contain a value

Type Parameters:

T - Type

Parameters:

primary - Primary optional

secondary - Supplier of secondary optional

Returns:

The resulting optional

TestIfPresent

public static <T> boolean TestIfPresent(Optional<T> optional,
 Predicate<T> predicate)

Evaluates the provided predicate against the optional only if it is present

Type Parameters:

T - Type

Parameters:

optional - Optional

predicate - Test to run against potential value

Returns:

True if the optional is present and the predicate passes

Equals

public static <T> boolean Equals(Optional<T> optional,
 Class<?> contents)

Check if the optional has a value and its value equals the provided value

Type Parameters:

T - Type

Parameters:

optional - Optional

contents - Contents to test for

Returns:

True if the optional has a value and that value equals the parameter