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   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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.apache.causeway.testdomain.jpa.entities;
  
  import java.util.concurrent.atomic.LongAdder;
  
  import jakarta.inject.Inject;
  import jakarta.inject.Named;
  import jakarta.persistence.Column;
  import jakarta.persistence.DiscriminatorValue;
  import jakarta.persistence.Entity;
  import jakarta.persistence.EntityListeners;
  import jakarta.persistence.Transient;
  import jakarta.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
  
  import org.apache.causeway.applib.annotation.DomainObject;
  import org.apache.causeway.applib.annotation.DomainObjectLayout;
  import org.apache.causeway.applib.annotation.Editing;
  import org.apache.causeway.applib.annotation.Programmatic;
  import org.apache.causeway.applib.annotation.Property;
  import org.apache.causeway.applib.annotation.Publishing;
  import org.apache.causeway.applib.jaxb.PersistentEntityAdapter;
  import org.apache.causeway.persistence.jpa.applib.integration.CausewayEntityListener;
  import org.apache.causeway.testdomain.model.stereotypes.MyService;
  import org.apache.causeway.testdomain.util.dto.BookDto;
  import org.apache.causeway.testdomain.util.dto.IBook;
  import org.apache.causeway.testdomain.util.kv.KVStoreForTesting;
  
  import lombok.AccessLevel;
  import lombok.Getter;
  import lombok.NoArgsConstructor;
  import lombok.Setter;
  import lombok.ToString;
  import lombok.extern.log4j.Log4j2;
  
  @Entity
  @EntityListeners(CausewayEntityListener.class)
  @DiscriminatorValue("Book")
  @Named("testdomain.jpa.Book")
  @DomainObject(
          entityChangePublishing = Publishing.ENABLED
  
          , actionDomainEvent = JpaBook.ActionDomainEvent.class
          , propertyDomainEvent = JpaBook.PropertyDomainEvent.class
          , collectionDomainEvent = JpaBook.CollectionDomainEvent.class
  
          , createdLifecycleEvent = JpaBook.CreatedLifecycleEvent.class
          , persistingLifecycleEvent = JpaBook.PersistingLifecycleEvent.class
          , persistedLifecycleEvent = JpaBook.PersistedLifecycleEvent.class
          , loadedLifecycleEvent = JpaBook.LoadedLifecycleEvent.class
          , updatingLifecycleEvent = JpaBook.UpdatingLifecycleEvent.class
          , updatedLifecycleEvent = JpaBook.UpdatedLifecycleEvent.class
          , removingLifecycleEvent = JpaBook.RemovingLifecycleEvent.class)
  @DomainObjectLayout(cssClassFa = "book")
  @XmlJavaTypeAdapter(PersistentEntityAdapter.class)
  @NoArgsConstructor(access = AccessLevel.PUBLIC)
  @ToString(callSuper = true)
  @Log4j2
  public class JpaBook
  extends JpaProduct
  implements IBook {
  
      @Inject @Transient private KVStoreForTesting kvStore;
  
      // -- ENTITY SERVICE INJECTION TEST
      @Transient private MyService myService;
      @Inject
      public void setMyService(final MyService myService) {
          var count = kvStore.incrementCounter(JpaBook.class, "injection-count");
          log.debug("INJECTION " + count);
          this.myService = myService;
      }
      @Programmatic
      public boolean hasInjectionPointsResolved() {
          getAuthor(); // seems to have the required side-effect to actually trigger injection
          return myService != null;
      }
      // --
  
      public static JpaBook of(
              final String name,
              final String description,
              final double price,
              final String author,
              final String isbn,
              final String publisher) {
  
          return new JpaBook(name, description, price, author, isbn, publisher);
      }
  
      public static JpaBook fromDto(final BookDto dto) {
          return JpaBook.of(dto.getName(), dto.getDescription(), dto.getPrice(),
                  dto.getAuthor(), dto.getIsbn(), dto.getPublisher());
      }
  
      @Override
      public String title() {
          return IBook.super.title();
      }
  
      @Property
      @Getter @Setter @Column(nullable = true)
      private String author;
  
      @Property(editing = Editing.ENABLED)
      @Column(nullable = false, unique = true)
      private String isbn;
      @Override
      public String getIsbn() {
          System.err.printf("[%d]getIsbn()->%s%n", this.hashCode(), isbn);
          if("ISBN-XXXX".equals(isbn)) {
              System.err.printf("%s%n", "bingo");
          }
          return isbn;
      }
      public void setIsbn(final String isbn) {
          System.err.printf("[%d]setIsbn():%s->%s%n", this.hashCode(), this.isbn, isbn);
          this.isbn = isbn;
      }
  
      private static final LongAdder idGen = new LongAdder();
      private int oid=-1;
  
      @Override
      public int hashCode() {
          synchronized(idGen) {
              if(oid==-1) {
                  idGen.increment();
                  oid = idGen.intValue();
              }
          }
          return oid;
      }
  
      @Property
      @Getter @Setter @Column(nullable = true)
      private String publisher;
  
      // -- CONSTRUCTOR
  
      private JpaBook(
              final String name,
              final String description,
              final double price,
              final String author,
              final String isbn,
              final String publisher) {
  
          super(/*id*/ null, name, description, price, /*comments*/null);
          this.author = author;
          System.err.printf("[%d]con Isbn():%s%n", this.hashCode(), isbn);
          this.isbn = isbn;
          this.publisher = publisher;
      }
  
  }
  