ドメイン駆動設計ドメインモデルの継続的なテスト

/*
 * DDBuilderで使える関連タイプと属性型に関する例です。ドメイン駆動設計的な観点の例ではありません。
 */
package jp.co.nextdesign.domain;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.OneToMany;
import javax.persistence.Transient;
import jp.co.nextdesign.domain.ddb.DdBaseEntity;

/**
 * 著者
 */
@Entity
public class Author extends DdBaseEntity {
    private static final long serialVersionUID = 1L;

    /** 名前 */
    private String name;
    
    /** 書籍リスト owning/parent */
    @OneToMany(mappedBy="author", cascade=CascadeType.ALL, orphanRemoval=true)
    private List<Book> bookList;

    /** 書籍リスト owning/parent */
    @OneToMany(mappedBy="author2", cascade=CascadeType.ALL, orphanRemoval=true)
    private List<Book> bookList2;

    /** コンストラクタ */
    public Author(){
        super();
        this.name = "---";
        this.bookList = new ArrayList<Book>();
        this.bookList2 = new ArrayList<Book>();
    }
    
    //OneToManyで双方向関連を維持するためのコードを含むgetBookList(),
    //setBookList(List<Book> bookList)の例
    @Transient
    private ArrayList<Book> latestBookList = new ArrayList<Book>();
    public List<Book> getBookList() {
        return this.bookList;
    }
    public void setBookList(List<Book> bookList) {
        for(Book newBook : bookList){
            if (!latestBookList.contains(newBook)){
                newBook.setAuthor(this);
            }
        }
        for(Book oldBook : latestBookList){
            if (!bookList.contains(oldBook)){
                oldBook.setAuthor(null);
            }
        }
        this.bookList = bookList;
        latestBookList = new ArrayList<Book>(this.bookList);
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public List<Book> getBookList2() {
        return bookList2;
    }
    public void setBookList2(List<Book> bookList2) {
        this.bookList2 = bookList2;
    }
    
    @Override
    public String getDDBEntityTitle(){
        return this.name;
    }
    
    /** debug */
    public String getDebugInfo(){
        String info = "<" + this.getClass().getSimpleName() + ">";
        info += "\nname=" + this.getName();
        info += "\n</" + this.getClass().getSimpleName() + ">";
        return info;
    }
}

package jp.co.nextdesign.domain;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.FetchType;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToMany;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import javax.persistence.Transient;
import jp.co.nextdesign.domain.ddb.DdBaseEntity;
import jp.co.nextdesign.domain.store.Store;

/**
 * 書籍
 */
@Entity
public class Book extends DdBaseEntity {
    private static final long serialVersionUID = 1L;
    
    /** 書名 */
    private String name;

    /** 書名2 */
    private String name2;

    /** 出版日 */
    private Date publishedAt;
    
    /** 出版日2 */
    private Date publishedAt2;
    
    /** 仕入価格 */
    private BigDecimal cost;
    
    /** 仕入価格2 */
    private BigDecimal cost2;
    
    /** キャンペーン1 isなし */
    private Boolean campaign1;
    
    /** キャンペーン12 isなし */
    private Boolean campaign12;
    
    /** キャンペーン2 is付き */
    private Boolean isCampaign2;
    
    /** キャンペーン22 is付き */
    private Boolean isCampaign22;
    
    /** 言語 */
    @Enumerated(EnumType.STRING)
    private EnumLanguage attEnum;
    
    /** 言語2 */
    @Enumerated(EnumType.STRING)
    private EnumLanguage attEnum2;

    /** ISBN one-to-one owning/parent Hibernate ORM 5.2 User Guide2.7と異なる */
    @OneToOne(cascade=CascadeType.ALL)
    @JoinColumn(name="isbn_id") //自分の列
    private Isbn isbn;
    
    /** ISBN2 one-to-one owning/parent Hibernate ORM 5.2 User Guide2.7と異なる */
    @OneToOne(cascade=CascadeType.ALL)
    @JoinColumn(name="isbn_id2") //自分の列
    private Isbn isbn2;
    
    /** 著者 */
    @ManyToOne
    private Author author;

    /** 著者2 */
    @ManyToOne
    private Author author2;

    /** 版 */
    @OneToMany(mappedBy="book", cascade=CascadeType.ALL, orphanRemoval=true)
    private List<Edition> editionList;
    
    /** 版2 */
    @OneToMany(mappedBy="book2", cascade=CascadeType.ALL, orphanRemoval=true)
    private List<Edition> editionList2;
    
    /**
     * 書店
     * Book編集画面で関連付ける書店を選択／解除しても書店側には反映されない。
     * setStoreList, getStoreListを参照。
     * 同期反映させるにはaddStore/removeStoreを使うかまたは、ManyToManyを
     * 2つのOneToManyで定義する。
     * Hibernate ORM 5.2 User Guide2.7.2 Bidirectional ManyToMany参照
     */
    @ManyToMany(cascade={CascadeType.PERSIST, CascadeType.MERGE}, fetch=FetchType.EAGER)
    private List<Store> storeList;
    
    /** 書店2
     * BookとStoreの間に2つのManyToManyを定義すると、
     * 次のようなBook_Storeテーブルが作成される。
     * このテーブルにinsertするためには、4つのxxxx_idが全てnot nullに限られるので、
     * insert時に（常に）例外が発生する。
     * 同じエンティティ間で複数のMantToMany関連を定義したい場合は
     * @JoinTableを使用する必要があると思われる。
     * ここでは未確認。
     * create table Book_Store (
     *   bookList2_id bigint not null,
     *   storeList2_id bigint not null,
     *   bookList_id bigint not null,
     *   storeList_id bigint not null
     * )
     */
//    @ManyToMany(cascade={CascadeType.PERSIST, CascadeType.MERGE})
//    private List<Store> storeList2;
    
    /** Integer型属性名 */
    private Integer integerAttribute;
    
    /** Integer型属性名2 */
    private Integer integerAttribute2;
    
    /** Byte型属性名 */
    private Byte attByte;
    
    /** Byte型属性名2 */
    private Byte attByte2;
    
    /** Short型属性名 */
    private Short attShort;
    
    /** Short型属性名2 */
    private Short attShort2;
    
    /** Long型属性名 */
    private Long attLong;
    
    /** Long型属性名2 */
    private Long attLong2;
    
    /** Float型属性名 */
    private Float attFloat;
    
    /** Float型属性名2 */
    private Float attFloat2;
    
    /** Double型属性名 */
    private Double attDouble;
    
    /** Double型属性名2 */
    private Double attDouble2;
    
    /** Character型属性名 */
    private Character attCharacter;
    
    /** Character型属性名2 */
    private Character attCharacter2;
    
    /** コンストラクタ */
    public Book(){
        super();
        this.name = "";
        this.storeList = new ArrayList<Store>();
//        this.storeList2 = new ArrayList<Store>();
        this.editionList = new ArrayList<Edition>();
        this.editionList2 = new ArrayList<Edition>();
    }
    
    //ManyToManyで双方向関連を維持するためのaddStore,removeStoreを含む。
    //owning側ではなくmappedBy側から使用するが、両側に実装する。
    public List<Store> getStoreList() {
        return storeList;
    }
    public void setStoreList(List<Store> storeList) {
        this.storeList = storeList;
    }
    public void addStore(Store store){
        if (store != null && !this.storeList.contains(store)){
            this.storeList.add(store);
            store.addBook(this);
        }
    }
    public void removeStore(Store store){
        if (store != null && this.storeList.contains(store)){
            this.storeList.remove(store);
            store.removeBook(this);
        }
    }
    
    //OneToManyで双方向関連を維持するためのコードを含むgetEditionList(),
    //setEditionList(List<Edition> editionList)の例
    @Transient
    private ArrayList<Edition> latestEditionList = new ArrayList<Edition>();
    public List<Edition> getEditionList() {
        return this.editionList;
    }
    public void setEditionList(List<Edition> editionList) {
        for(Edition newEdition : editionList){
            if (!latestEditionList.contains(newEdition)){
                newEdition.setBook(this);
            }
        }
        for(Edition oldEdition : latestEditionList){
            if (!editionList.contains(oldEdition)){
                oldEdition.setBook(null);
            }
        }
        this.editionList = editionList;
        latestEditionList = new ArrayList<Edition>(this.editionList);
    }
    
    /** DDBのviewが使用する */
    @Override
    public String getDDBEntityTitle(){
        String result = this.getName();
        result += this.getAuthor() != null ? this.getAuthor().getName() : "";
        return result;
    }
    
//    public List<Store> getStoreList2() {
//        return storeList2;
//    }
//    public void setStoreList2(List<Store> storeList2) {
//        this.storeList2 = storeList2;
//    }
    public Isbn getIsbn() {
        return isbn;
    }
    public void setIsbn(Isbn isbn) {
        this.isbn = isbn;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Author getAuthor() {
        return author;
    }
    public void setAuthor(Author author) {
        this.author = author;
    }
    public Date getPublishedAt() {
        return publishedAt;
    }
    public void setPublishedAt(Date publishedAt) {
        this.publishedAt = publishedAt;
    }
    //Eclipseのgetter/setter自動生成では(booleanではなく
    //Booleanの場合)is名前形式のgetterは生成されない。
    //Wicket はis名前形式のgetter以外にget名前形式でもよい。
    public Boolean getCampaign1() {
        return campaign1;
    }
    public void setCampaign1(Boolean campaign1) {
        this.campaign1 = campaign1;
    }
    public Boolean getIsCampaign2() {
        return isCampaign2;
    }
    public void setIsCampaign2(Boolean isCampaign2) {
        this.isCampaign2 = isCampaign2;
    }
    public Byte getAttByte() {
        return attByte;
    }
    public void setAttByte(Byte attByte) {
        this.attByte = attByte;
    }
    public Short getAttShort() {
        return attShort;
    }
    public void setAttShort(Short attShort) {
        this.attShort = attShort;
    }
    public Integer getIntegerAttribute() {
        return integerAttribute;
    }
    public void setIntegerAttribute(Integer integerAttribute) {
        this.integerAttribute = integerAttribute;
    }
    public Long getAttLong() {
        return attLong;
    }
    public void setAttLong(Long attLong) {
        this.attLong = attLong;
    }
    public Float getAttFloat() {
        return attFloat;
    }
    public void setAttFloat(Float attFloat) {
        this.attFloat = attFloat;
    }
    public Double getAttDouble() {
        return attDouble;
    }
    public void setAttDouble(Double attDouble) {
        this.attDouble = attDouble;
    }
    public Character getAttCharacter() {
        return attCharacter;
    }
    public void setAttCharacter(Character attCharacter) {
        this.attCharacter = attCharacter;
    }
    public EnumLanguage getAttEnum() {
        return attEnum;
    }
    public void setAttEnum(EnumLanguage attEnum) {
        this.attEnum = attEnum;
    }

    /** debug用 */
    public void debugPrint(){
        String info = "<" + this.getClass().getSimpleName() + ">";
        info += "\nname=" + this.getName();
        info += "\npublishedAt=" + this.getPublishedAt();
        if(this.author != null) info += "\n" + this.getAuthor().getDebugInfo();
        if(this.isbn != null) info += "\n" + this.getIsbn().getDebugInfo();
        for(Edition edition : this.getEditionList()){
            info += "\n" + edition.getDebugInfo();
        }
        for(Store bookStore : this.getStoreList()){
            info += "\n" + bookStore.getDebugInfo();
        }
        info += "\n</" + this.getClass().getSimpleName() + ">";
        System.out.println("--------------------------------------");
        System.out.println(info);
        System.out.println("--------------------------------------");
    }

    public String getName2() {
        return name2;
    }
    public void setName2(String name2) {
        this.name2 = name2;
    }
    public Date getPublishedAt2() {
        return publishedAt2;
    }
    public void setPublishedAt2(Date publishedAt2) {
        this.publishedAt2 = publishedAt2;
    }
    public Boolean getCampaign12() {
        return campaign12;
    }
    public void setCampaign12(Boolean campaign12) {
        this.campaign12 = campaign12;
    }
    public Boolean getIsCampaign22() {
        return isCampaign22;
    }
    public void setIsCampaign22(Boolean isCampaign22) {
        this.isCampaign22 = isCampaign22;
    }
    public EnumLanguage getAttEnum2() {
        return attEnum2;
    }
    public void setAttEnum2(EnumLanguage attEnum2) {
        this.attEnum2 = attEnum2;
    }
    public Isbn getIsbn2() {
        return isbn2;
    }
    public void setIsbn2(Isbn isbn2) {
        this.isbn2 = isbn2;
    }
    public Author getAuthor2() {
        return author2;
    }
    public void setAuthor2(Author author2) {
        this.author2 = author2;
    }
    public List<Edition> getEditionList2() {
        return editionList2;
    }
    public void setEditionList2(List<Edition> editionList2) {
        this.editionList2 = editionList2;
    }
//    public List<Store> getStoreList2() {
//        return storeList2;
//    }
//    public void setStoreList2(List<Store> storeList2) {
//        this.storeList2 = storeList2;
//    }
    public Integer getIntegerAttribute2() {
        return integerAttribute2;
    }
    public void setIntegerAttribute2(Integer integerAttribute2) {
        this.integerAttribute2 = integerAttribute2;
    }
    public Byte getAttByte2() {
        return attByte2;
    }
    public void setAttByte2(Byte attByte2) {
        this.attByte2 = attByte2;
    }
    public Short getAttShort2() {
        return attShort2;
    }
    public void setAttShort2(Short attShort2) {
        this.attShort2 = attShort2;
    }
    public Long getAttLong2() {
        return attLong2;
    }
    public void setAttLong2(Long attLong2) {
        this.attLong2 = attLong2;
    }
    public Float getAttFloat2() {
        return attFloat2;
    }
    public void setAttFloat2(Float attFloat2) {
        this.attFloat2 = attFloat2;
    }
    public Double getAttDouble2() {
        return attDouble2;
    }
    public void setAttDouble2(Double attDouble2) {
        this.attDouble2 = attDouble2;
    }
    public Character getAttCharacter2() {
        return attCharacter2;
    }
    public void setAttCharacter2(Character attCharacter2) {
        this.attCharacter2 = attCharacter2;
    }
    public BigDecimal getCost() {
        return cost;
    }
    public void setCost(BigDecimal cost) {
        this.cost = cost;
    }
    public BigDecimal getCost2() {
        return cost2;
    }
    public void setCost2(BigDecimal cost2) {
        this.cost2 = cost2;
    }
    
//setStoreList,getStoreList,setEditionList,getEditionListに
//対策コードを追加したので以下は使用しない。
//    /*
//     * getter/setterに加えて、このメソッドを追加する理由
//     * OneToManyの関連に関連先を追加するためには、
//     * book.getEditionList().add(newEdition)として、persist(book)としても追加されない。
//     * newEdition.setBook(book)としてから、persist(book)しなければならない。
//     * ただ、シーケンスとしてbook側を変更するだけにしたい場合もあるので、
//     * 以下のようなaddEdition(newEdition)を実装した。
//     * ただし、双方向維持のための常套コードのように
//     * edition.setBook(book)からbook.addEdition(edition)とすると、
//     * 復元時に"復元中にコレクションが変更された"という例外が発生するので、
//     * edition.setBook(book)からbook.addEdition(edition)は使用しないようにした。
//     */
//    public void addEdition(Edition edition){
////        if(edition!=null && !this.editionList.contains(edition)){
////            edition.setBook(this);
////            this.editionList.add(edition);
////        }
//        //Hibernate ORM 5.2 User Guide2.7.2 Bidirectional @OneToMany 例を参考
//        this.editionList.add(edition);
//        edition.setBook(this);
//    }
//
//    /**
//     * Hibernate ORM 5.2 User Guide2.7.2 Bidirectionaln@OneToMany 例を参考
//     * @param edition
//     */
//    public void removeEdition(Edition edition){
//        this.editionList.remove(edition);
//        edition.setBook(null);
//    }
//
//    /**
//     * ManyToManyのowning sideなので自分のリストのみ更新する。
//     * Store（mappedBy側）との間でaddBookから折り返すと復元時に
//     * "復元中にコレクションが変更された"例外が発生すると思われる
//     */
//    public void addStore(Store store){
//        //Hibernate ORM 5.2 User Guide2.7.2 Bidirectionaln@ManyToManyでは
//        //Store（mappedBy側）にHelperメソッドは無い。
////        if (store != null && !this.storeList.contains(store)){
////            this.storeList.add(store);
////        }
//        this.storeList.add(store);
//        store.getBookList().add(this);
//    }
//    
//    /**
//     * 双方向関連を整合させるためのアプリケーションコード
//     */
//    public void removeStore(Store store){
//        this.storeList.remove(store);
//        store.getBookList().remove(this);
//    }
}

package jp.co.nextdesign.domain;
import javax.persistence.Entity;
import javax.persistence.ManyToOne;
import jp.co.nextdesign.domain.ddb.DdBaseEntity;

/**
 * 版
 */
@Entity
public class Edition extends DdBaseEntity {
    private static final long serialVersionUID = 1L;

    /** 版番号 */
    private Integer editionNumber;
    
    /** 版名 */
    private String name;
    
    /** 書籍 */
    @ManyToOne
    //@JoinColumn(name="book_id") //省略可
    private Book book;

    /** 書籍 */
    @ManyToOne
    //@JoinColumn(name="book_id") //省略可
    private Book book2;

    public Edition(){
        super();
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getEditionNumber() {
        return editionNumber;
    }

    public void setEditionNumber(Integer editionNumber) {
        this.editionNumber = editionNumber;
    }

    public Book getBook() {
        return book;
    }

    //Book#addEdition,removeEditionから使用する
    public void setBook(Book book) {
        this.book = book;
    }    

    public Book getBook2() {
        return book2;
    }

    public void setBook2(Book book2) {
        this.book2 = book2;
    }

    @Override
    public String getDDBEntityTitle(){
        return this.name;
    }

    /** debug */
    public String getDebugInfo(){
        String info = "<" + this.getClass().getSimpleName() + ">";
        info += "\neditionNumber=" + this.getEditionNumber();
        info += "\n</" + this.getClass().getSimpleName() + ">";
        return info;
    }
}

package jp.co.nextdesign.domain;
public enum EnumLanguage {
    JA("日本語"),
    EN("英語");

    private String fullName;
    private EnumLanguage(String fullName){
        this.fullName = fullName;
    }

    @Override
    public String toString(){
        return this.fullName;
    }
}

package jp.co.nextdesign.domain;
import java.util.Date;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import jp.co.nextdesign.domain.ddb.DdBaseEntity;

/**
 * ISBN
 */
@Entity
public class Isbn extends DdBaseEntity {
    private static final long serialVersionUID = 1L;
    
    /** 書籍 one-to-one non-owning/child Hibernate ORM 5.2 User Guide2.7と異なる */
    @OneToOne(mappedBy="isbn") //相手側(owning)の属性
    private Book book;

    /** 書籍 one-to-one non-owning/child Hibernate ORM 5.2 User Guide2.7と異なる */
    @OneToOne(mappedBy="isbn2") //相手側(owning)の属性
    private Book book2;

    /** グループ記号 */
    private String groupCode;
    
    /** 出版社記号 */
    private Integer publisherCode;
    
    /** 書名記号 */
    private String itemCode;
    
    /** チェックディジット */
    private String checkDigit;
    
    /** 決定日 */
    private Date determinatedAt;
    
    /** 旧ISBN */
    private Boolean isOldIsbn;
    
    /** コンストラクタ */
    public Isbn(){
        super();
    }

    public Book getBook() {
        return book;
    }

    public void setBook(Book book) {
        this.book = book;
    }
    
    public Book getBook2() {
        return book2;
    }

    public void setBook2(Book book2) {
        this.book2 = book2;
    }

    public String getGroupCode() {
        return groupCode;
    }

    public void setGroupCode(String groupCode) {
        this.groupCode = groupCode;
    }

    public Integer getPublisherCode() {
        return publisherCode;
    }

    public void setPublisherCode(Integer publisherCode) {
        this.publisherCode = publisherCode;
    }

    public String getItemCode() {
        return itemCode;
    }

    public void setItemCode(String itemCode) {
        this.itemCode = itemCode;
    }

    public String getCheckDigit() {
        return checkDigit;
    }

    public void setCheckDigit(String checkDigit) {
        this.checkDigit = checkDigit;
    }
    
    public Date getDeterminatedAt() {
        return determinatedAt;
    }

    public void setDeterminatedAt(Date determinatedAt) {
        this.determinatedAt = determinatedAt;
    }

    public Boolean getIsOldIsbn() {
        return isOldIsbn;
    }

    public void setIsOldIsbn(Boolean isOldIsbn) {
        this.isOldIsbn = isOldIsbn;
    }

    @Override
    public String getDDBEntityTitle(){
        return "ISBN" + this.getGroupCode() + "-" 
        + this.getPublisherCode() + "-" + this.getItemCode();
    }
    
    /** debug */
    public String getDebugInfo(){
        String info = "<" + this.getClass().getSimpleName() + ">";
        info += "\ngroupCode=" + this.getGroupCode();
        info += "\npublisherCode=" + this.getPublisherCode();
        info += "\nitemNumber=" + this.getItemCode();
        info += "\n</" + this.getClass().getSimpleName() + ">";
        return info;
    }
}

package jp.co.nextdesign.domain.store;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.ManyToMany;
import jp.co.nextdesign.domain.Book;
import jp.co.nextdesign.domain.ddb.DdBaseEntity;

/**
 * 書店
 */
@Entity
public class Store extends DdBaseEntity {
    private static final long serialVersionUID = 1L;
    
    /** 書店名 */
    private String name;
    
    /** 書籍リスト */
    @ManyToMany(mappedBy="storeList", fetch=FetchType.EAGER)
    private List<Book> bookList;

//    /** 書籍リスト Book側のコメントを参照 */
//    @ManyToMany(mappedBy="storeList2")
//    private List<Book> bookList2;

    /** コンストラクタ */
    public Store(){
        super();
        this.name = "";
        this.bookList = new ArrayList<Book>();
//        this.bookList2 = new ArrayList<Book>();
    }

    /** DDBのviewが使用する */
    @Override
    public String getDDBEntityTitle(){
        return this.name;
    }
    
    //ManyToManyで双方向関連を維持するためのaddStore,removeStoreを含む。
    //owning側ではなくmappedBy側から使用するが、両側に実装する。
    public List<Book> getBookList() {
        return bookList;
    }
    public void setBookList(List<Book> bookList) {
        this.bookList = bookList;
    }
    public void addBook(Book book){
        if (book != null && !this.bookList.contains(book)){
            this.bookList.add(book);
            book.addStore(this);
        }
    }
    public void removeBook(Book book){
        if (book != null && this.bookList.contains(book)){
            this.bookList.remove(book);
            book.removeStore(this);
        }
    }secti

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }

    /** debug */
    public String getDebugInfo(){
        String info = "<" + this.getClass().getSimpleName() + ">";
        info += "\nname=" + this.getName();
        info += "\n</" + this.getClass().getSimpleName() + ">";
        return info;
    }
}

package jp.co.nextdesign.domain;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.OneToMany;
import javax.persistence.Transient;
import jp.co.nextdesign.domain.ddb.DdBaseEntity;
/**
 * 製品
 */
@Entity
public class Product extends DdBaseEntity {
    private static final long serialVersionUID = 1L;

    /** 製品名 */
    private String name;
    
    /** 在庫 */
    @OneToMany(mappedBy="product", cascade=CascadeType.ALL, orphanRemoval=true)
    private List<Stock> stockList = new ArrayList<Stock>();
    
    /** コンストラクタ */
    public Product(){
        super();
        this.name = "";
    }

    //OneToManyで双方向関連を維持するためのコードを
//含むgetStockList(),setStockList(List<Stock> stockList)の例
    @Transient
    private ArrayList<Stock> latestStockList = new ArrayList<Stock>();
    public List<Stock> getStockList() {
        return this.stockList;
    }
    public void setStockList(List<Stock> stockList) {
        for(Stock newStock : stockList){
            if (!latestStockList.contains(newStock)){
newStock.setProduct(this);
            }
        }
        for(Stock oldStock : latestStockList){
            if (!stockList.contains(oldStock)){
                oldStock.setProduct(null);
            }
        }
        this.stockList = stockList;
        latestStockList = new ArrayList<Stock>(this.stockList);
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    
    /** DDB一覧表示用タイトル */
    @Override
    public String getDDBEntityTitle(){
        return "製品名：" + this.getName();
    }
}

package jp.co.nextdesign.domain;
import java.util.Calendar;
import java.util.Date;
import javax.persistence.Entity;
import javax.persistence.ManyToOne;
import jp.co.nextdesign.domain.ddb.DdBaseEntity;
/**
 * 在庫
 */
@Entity
public class Stock extends DdBaseEntity {
    private static final long serialVersionUID = 1L;
        
    /** 数量 */
    private Integer quantity;
        
    /** 製品 */
    @ManyToOne
    private Product product;
        
    /** 倉庫  */
    @ManyToOne
    private Warehouse warehouse;
        
    /** コンストラクタ */
    public Stock(){
        super();
        this.quantity = 0;
    }
        
    /**
     * 次月の入庫予定日を応答する
     * @return 次月の入庫予定日
     */
    public Date getNextMonthWarehousingDate(){
        Date result = Calendar.getInstance().getTime();
        //何らかの実装
        return result;
    }
        
    /** DDB一覧表示用タイトル */
    @Override
    public String getDDBEntityTitle(){
        String result = "製品名=";
        result += this.getProduct() != null ? this.getProduct().getName() : "";
        result += " 倉庫名=";
        result += this.getWarehouse() != null ? this.getWarehouse().getName() : "";
        result += " 数量=" + this.getQuantity();
        return result;
    }
    public Integer getQuantity() {
        return quantity;
    }
    public void setQuantity(Integer quantity) {
        this.quantity = quantity;
    }
    public Product getProduct() {
        return product;
    }
    public void setProduct(Product product) {
        this.product = product;
    }
    public Warehouse getWarehouse() {
        return warehouse;
    }
    public void setWarehouse(Warehouse warehouse) {
        this.warehouse = warehouse;
    }       
}

package jp.co.nextdesign.domain;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.OneToMany;
import javax.persistence.Transient;
import jp.co.nextdesign.domain.ddb.DdBaseEntity;
/**
 * 倉庫
 */
@Entity
public class Warehouse extends DdBaseEntity {
    private static final long serialVersionUID = 1L;

    /** 倉庫名 */
    private String name;
    
    /** 在庫リスト */
    @OneToMany(mappedBy="warehouse", cascade=CascadeType.ALL, orphanRemoval=true)
    private List<Stock> stockList = new ArrayList<Stock>();

    /** コンストラクタ */
    public Warehouse(){
        super();
        this.name = "";
    }
    
    /** 製品在庫を追加する */
    public boolean addStock(Product product, int quantity){
        //処理（この例では省略）
        return true;
    }

    /** 製品在庫を削減する */
    public boolean removeStock(Product product, int quantity){
        //処理（この例では省略）
        return true;
    }

    //OneToManyで双方向関連を維持するためのコードを
//含むgetStockList(),setStockList(List<Stock> stockList)の例
    @Transient
    private ArrayList<Stock> latestStockList = new ArrayList<Stock>();
    public List<Stock> getStockList() {
        return this.stockList;
    }
    public void setStockList(List<Stock> stockList) {
        for(Stock newStock : stockList){
            if (!latestStockList.contains(newStock)){
                newStock.setWarehouse(this);
            }
        }
        for(Stock oldStock : latestStockList){
            if (!stockList.contains(oldStock)){
                oldStock.setWarehouse(null);
            }
        }
        this.stockList = stockList;
        latestStockList = new ArrayList<Stock>(this.stockList);
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    
    /** DDB一覧表示用タイトル */
    @Override
    public String getDDBEntityTitle(){
        return "倉庫名：" + this.getName();
    }
}

package jp.co.nextdesign.service;
import jp.co.nextdesign.domain.Product;
import jp.co.nextdesign.domain.Warehouse;
import jp.co.nextdesign.service.ddb.DdBaseService;
/**
 * 在庫管理サービス
 */
public class StockService extends DdBaseService {

    /**
     * 倉庫間移動
     * @param from　移動元倉庫
     * @param to　移動先倉庫
     * @param product 移動する商品
     * @param quantity 移動する数量
     * @return
     */
    public Boolean transferStock(Warehouse from, Warehouse to, Product product, Integer quantity) {
        boolean result = false;
        try {
            startService(); //サービス初期化処理
            begin(); //トランザクション開始
            
            // 倉庫間移動処理
            if (from.removeStock(product, quantity)){
                if (to.addStock(product, quantity)){
                    result = true;
                }
            }
            if (result){
                commit(); //トランザクションcommit
            } else {
                rollback(); //トランザクションrollback
            }
        } catch (Exception e) {
            rollback();
        } finally {
            endService(); //サービス終了処理
        }
        return result;
    }
}