Package org.mapfish.print

Class OptionalUtils

java.lang.Object

org.mapfish.print.OptionalUtils

public final class OptionalUtils
extends Object

Utilities for Java's Optional class.

Method Summary

Modifier and Type	Method	Description
static <T> Optional<T>	or(Supplier<Optional<? extends T>>... optionals)	Return the first optional to be defined.
static <T> Optional<T>	or(Optional<T> a, Optional<? extends T> b)	Return the first optional to be defined.

Methods inherited from class java.lang.Object

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

Method Details

or

public static <T> Optional<T> or(Optional<T> a,
 Optional<? extends T> b)

Return the first optional to be defined.

Type Parameters:

T - The type

Parameters:

a - The first

b - The second

Returns:

a or b or empty

or

@SafeVarargs
public static <T> Optional<T> or(Supplier<Optional<? extends T>>... optionals)

Return the first optional to be defined.

Type Parameters:

T - The type

Parameters:

optionals - the lambdas returning the optionals

Returns:

the first non-empty or empty