Although answer given by Subhendu Mahanta is correct. But
@CollectionOfElements is deprecated. You can use
@ElementCollection @JoinTable(name="ATTRIBUTE_VALUE_RANGE", joinColumns=@JoinColumn(name="ID")) @MapKeyColumn (name="RANGE_ID") @Column(name="VALUE") private Map<String, String> attributeValueRange = new HashMap<String, String>();
There is no need to create a separate Entity class for the
Map field. It will be done automatically.
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