package ejava.examples.orm.map.annotated;
   
   import java.util.HashMap;
   import java.util.Map;
   
   import javax.persistence.*;
   
   /**
    * This class represents a parent in One-to-Many, bi-directional relationship.
   * The parent is the inverse side of the relationship and keeps the children 
   * in a Map. The OneManyOwningChild defines the relationship.
   */
  @Entity @Table(name="ORMMAP_ONEMANY_INVPARENT")
  public class OneManyInverseParent {
      @Id
      private String name;
  
      @OneToMany(mappedBy="oneInverseParent")
      @MapKey(name="name")
      private Map<String, OneManyOwningChild> ownedByChildren =
              new HashMap<String, OneManyOwningChild>();
  
      protected OneManyInverseParent() {}
      public OneManyInverseParent(String name) { this.name = name; }
  
      public String getName() { return name; }
      
      public Map<String, OneManyOwningChild> getOwnedByChildren() { return ownedByChildren; }
      public void setOwnedByChildren(
                      Map<String, OneManyOwningChild> ownedByChildren) {
          this.ownedByChildren = ownedByChildren;
      }
  
      public String toString() {
          StringBuilder text = new StringBuilder();
          
          text.append(getClass().getName());
          text.append(", name=" + name);
          if (ownedByChildren != null) {
              text.append(", ownedByChildren=(" + ownedByChildren.size() + ")={");
              for (String key : ownedByChildren.keySet()) {
                      text.append(ownedByChildren.get(key).getName() + ", ");
              }
              text.append("}");
          }
          return text.toString();
      }
  }