org.springsource.restbucks.payment.Payment.java Source code

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Here is the source code for org.springsource.restbucks.payment.Payment.java

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/*
 * Copyright 2012-2015 the original author or authors.
 *
 * 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 org.springsource.restbucks.payment;

import java.time.LocalDateTime;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;

import lombok.Getter;
import lombok.ToString;
import lombok.Value;

import org.springframework.util.Assert;
import org.springsource.restbucks.core.AbstractEntity;
import org.springsource.restbucks.order.Order;

/**
 * Baseclass for payment implementations.
 * 
 * @author Oliver Gierke
 */
@Entity
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@Getter
@ToString(callSuper = true)
public abstract class Payment extends AbstractEntity {

    @JoinColumn(name = "rborder") //
    @OneToOne(cascade = CascadeType.MERGE) //
    private final Order order;
    private final LocalDateTime paymentDate;

    protected Payment() {

        this.order = null;
        this.paymentDate = null;
    }

    /**
     * Creates a new {@link Payment} referring to the given {@link Order}.
     * 
     * @param order must not be {@literal null}.
     */
    public Payment(Order order) {

        Assert.notNull(order);
        this.order = order;
        this.paymentDate = LocalDateTime.now();
    }

    /**
     * Returns a receipt for the {@link Payment}.
     * 
     * @return
     */
    public Receipt getReceipt() {
        return new Receipt(paymentDate, order);
    }

    /**
     * A receipt for an {@link Order} and a payment date.
     * 
     * @author Oliver Gierke
     */
    @Value
    public static class Receipt {

        private final LocalDateTime date;
        private final Order order;
    }
}