JPA Map mapping

Question

How can I map a Map in JPA without using Hibernate\'s classes?

Answer 1

Although answer given by Subhendu Mahanta is correct. But @CollectionOfElements is deprecated. You can use @ElementCollection instead:

@ElementCollection
@JoinTable(name="ATTRIBUTE_VALUE_RANGE", joinColumns=@JoinColumn(name="ID"))
@MapKeyColumn (name="RANGE_ID")
@Column(name="VALUE")
private Map attributeValueRange = new HashMap();

There is no need to create a separate Entity class for the Map field. It will be done automatically.