package ejava.examples.orm.map.annotated;
   
   import java.util.HashMap;
   import java.util.Map;
   
   import javax.persistence.*;
   
   /**
    * This class represents a the inverse side of a Many-to-Many bi-directional 
   * relationship stored as a Map. The ManyManyOwningEntity owns the
   * relationship. 
   */
  @Entity @Table(name="ORMMAP_MANYMANY_INVENTITY")
  public class ManyManyInverseEntity {
      @Id
      private String name;
  
      @ManyToMany(mappedBy="ownedInverseEntities")
      @MapKey(name="name")
      private Map<String, ManyManyOwningEntity> ownedByEntities = new HashMap<String, ManyManyOwningEntity>();
      
      
      protected ManyManyInverseEntity() {}
      public ManyManyInverseEntity(String name) { this.name = name; }
  
      public String getName() { return name; }
  
      public Map<String, ManyManyOwningEntity> getOwnedByEntities() { return ownedByEntities; }
      public void setOwnedByEntities(Map<String, ManyManyOwningEntity> ownedByEntities) {
          this.ownedByEntities = ownedByEntities;
      }
      
      public String toString() {
          StringBuilder text = new StringBuilder();
          
          text.append(getClass().getName());
          text.append(", name=" + name);
          if (ownedByEntities != null) {
              text.append(", ownedByEntities=(" + ownedByEntities.size() + ")={");
              for (String key : ownedByEntities.keySet()) {
                  text.append(ownedByEntities.get(key).getName() + ", ");
              }
              text.append("}");
          }
          return text.toString();
      }
  }