https://javamoney.github.io/: JSR 354 provides an API for representing, transporting, and performing comprehensive calculations with Money and Currency. (JSR 354 - Expert Group)
  • Anatole Tresch (Trivadis AG)
  • Werner Keil
  • Thomas Hüsler (Espalier Technologies)
  • Otávio Santana
  • Simon Martinelli
  • Christopher Pheby
  • Jefferson Prestes
  • Jeremy Davies
  • Manuela Grindei
  • Benjamin Cotton
  • Stephen Colebourne
  • Greg Bakos
  • Tony Jewell
  • Rajmahendra Hegde (JUG Chennai)
  • Scott James
  • Matthias Buecker
  • Sanjay Nagpal
  • Mohamed Taman
  • Bob Lee
  • Arumugam Swaminathan 
/*
 * Copyright 2012-2016 Credit Suisse
 * Copyright 2018-2020 Werner Keil, Otavio Santana, Trivadis AG
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package javax.money;



 
 Represents a supplier of NumberValue-valued results. This is the NumberValue-producing specialization of Supplier (as in Java 8). 

There is no requirement that a distinct result be returned each time the
supplier is invoked.


This is a functional interface whose functional method is getNumber(). This class does not extend Supplier since MonetaryAmount implements both supplier interfaces, NumberSupplier and CurrencySupplier, which will lead to method name conflicts. 


Author:Werner Keil, Anatole Tresch
See Also:
Version:1.0
Since:0.8
/**
 *  <p>
 * Represents a supplier of {@link NumberValue}-valued results. This is the
 * {@link NumberValue}-producing specialization of {@code Supplier} (as in Java 8).
 *
 * <p>
 * There is no requirement that a distinct result be returned each time the
 * supplier is invoked.
 *
 * <p>
 * This is a <b>functional interface</b> whose
 * functional method is {@link #getNumber()}.
 * This class does not extend {@link java.util.function.Supplier} since {@link javax.money.MonetaryAmount} implements
 * both supplier interfaces, {@link javax.money.NumberSupplier} and {@link javax.money.CurrencySupplier},
 * which will lead
 * to method name conflicts.
 * </p>
 *
 * @author Werner Keil
 * @author Anatole Tresch
 * @version 1.0
 * @see java.util.function.Supplier
 * @since 0.8
 */
@FunctionalInterface
public interface NumberSupplier{

    
Gets the corresponding NumberValue. 
Returns:the corresponding NumberValue, not null.
/**
     * Gets the corresponding {@link javax.money.NumberValue}.
     *
     * @return the corresponding {@link javax.money.NumberValue}, not null.
     */
    NumberValue getNumber();
}