/*
* CREDIT SUISSE IS WILLING TO LICENSE THIS SPECIFICATION TO YOU ONLY UPON THE CONDITION THAT YOU
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* AGREEMENT CAREFULLY. BY DOWNLOADING THIS SPECIFICATION, YOU ACCEPT THE TERMS AND CONDITIONS OF
* THE AGREEMENT. IF YOU ARE NOT WILLING TO BE BOUND BY IT, SELECT THE "DECLINE" BUTTON AT THE
* BOTTOM OF THIS PAGE. Specification: JSR-354 Money and Currency API ("Specification") Copyright
* (c) 2012-2013, Credit Suisse All rights reserved.
*/
package javax.money.spi;
import javax.money.
MonetaryAmount;
import javax.money.
MonetaryAmountFactory;
import javax.money.
MonetaryException;
import java.util.
ArrayList;
import java.util.
Collection;
import java.util.
List;
import java.util.
Set;
/**
* SPI (core) for the backing implementation of the {@link javax.money.Monetary} singleton. It
* should load and manage (including contextual behavior), if needed) the different registered
* {@link javax.money.MonetaryAmountFactory} instances.
*
* @author Anatole Tresch
*/
public interface
MonetaryAmountsSingletonSpi{
/**
* Access the {@link javax.money.MonetaryAmountFactory} for the given {@code amountType} .
*
* @param amountType the {@link MonetaryAmount} implementation type, targeted by the factory.
* @return the {@link javax.money.MonetaryAmountFactory}, or {@code null}, if no such
* {@link javax.money.MonetaryAmountFactory} is available in the current context.
*/
<T extends
MonetaryAmount>
MonetaryAmountFactory<T>
getAmountFactory(
Class<T>
amountType);
/**
* Access the default {@link MonetaryAmount} implementation type.
*
* @return a the default {@link MonetaryAmount} type corresponding, never {@code null}.
* @throws MonetaryException if no {@link MonetaryAmountFactoryProviderSpi} is available, or no
* {@link MonetaryAmountFactoryProviderSpi} targeting the configured default
* {@link MonetaryAmount} type.
* @see javax.money.Monetary#getDefaultAmountType()
*/
Class<? extends
MonetaryAmount>
getDefaultAmountType();
/**
* Get the currently registered {@link MonetaryAmount} implementation types.
*
* @return the {@link Set} if registered {@link MonetaryAmount} implementations, never
* {@code null}.
*/
Collection<
Class<? extends
MonetaryAmount>>
getAmountTypes();
/**
* Access the default {@link javax.money.MonetaryAmountFactory}.
*
* @return a the default {@link MonetaryAmount} type corresponding, never {@code null}.
* @throws MonetaryException if no {@link MonetaryAmountFactoryProviderSpi} is available, or no
* {@link MonetaryAmountFactoryProviderSpi} targeting the configured default
* {@link MonetaryAmount} type.
* @see javax.money.Monetary#getDefaultAmountType()
*/
default
MonetaryAmountFactory<?>
getDefaultAmountFactory(){
return
getAmountFactory(
getDefaultAmountType());
}
/**
* Get the currently registered {@link MonetaryAmount} implementation classes.
*
* @return the {@link Set} if registered {@link MonetaryAmount} implementations, never
* {@code null}.
*/
default
Collection<
MonetaryAmountFactory<?>>
getAmountFactories(){
List<
MonetaryAmountFactory<?>>
factories = new
ArrayList<>();
for(
Class<? extends
MonetaryAmount>
type :
getAmountTypes()){
factories.
add(
getAmountFactory(
type));
}
return
factories;
}
}