java-design-patterns/service-layer/src/main/java/com/iluwatar/BaseEntity.java

package com.iluwatar;

import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.MappedSuperclass;
import javax.persistence.Version;

@MappedSuperclass
@Inheritance(strategy=InheritanceType.TABLE_PER_CLASS)
public class BaseEntity {
	
	@Version
	private Long version;
}