Hibernate Annotations Sample

				//$Id: AddressBook.java 14736 2008-06-04 14:23:42Z hardy.ferentschik $				package org.hibernate.test.annotations.indexcoll;								import java.util.HashMap;				import java.util.Map;				import javax.persistence.CascadeType;				import javax.persistence.Entity;				import javax.persistence.GeneratedValue;				import javax.persistence.Id;				import javax.persistence.MapKey;				import javax.persistence.OneToMany;				import javax.persistence.JoinTable;								/**				 * @author Emmanuel Bernard				 */				@Entity				public class AddressBook {					private Integer id;					private String owner;					private Map entries = new HashMap();					private Map lastNameEntries = new HashMap();					private Map directoryEntries = new HashMap();									@Id					@GeneratedValue					public Integer getId() {						return id;					}									public void setId(Integer id) {						this.id = id;					}									public String getOwner() {						return owner;					}									public void setOwner(String owner) {						this.owner = owner;					}									@MapKey					@OneToMany(mappedBy = "book", cascade = {CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REMOVE})					@JoinTable(name="AddRegEntry")					public Map getEntries() {						return entries;					}									public void setEntries(Map entries) {						this.entries = entries;					}									@MapKey(name = "person.lastname")					@OneToMany(mappedBy = "book")					public Map getLastNameEntries() {						return lastNameEntries;					}									public void setLastNameEntries(Map lastNameEntries) {						this.lastNameEntries = lastNameEntries;					}									@MapKey(name = "directory")					@OneToMany(mappedBy = "book")					@JoinTable(name="Dir_Entry")					public Map getDirectoryEntries() {						return directoryEntries;					}									public void setDirectoryEntries(Map directoryEntries) {						this.directoryEntries = directoryEntries;					}								}