In the application project, derive an entity class from com.haulmont.cuba.security.entity.User and add the required attribute with the corresponding access methods:
@Entity(name = "sales$User")
@Extends(User.class)
public class ExtUser extends User {
@Column(name = "ADDRESS", length = 100)
private String address;
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}The new name of the entity should be specified in the @Entity annotation. Since the parent entity does not declare the inheritance strategy, it is assumed to be SINGLE_TABLE by default. It means that the child entity will be stored in the same table as the parent one, and the @Table annotation is not required. Other parent entity annotations ( @NamePattern, @Listeners, etc.) are automatically applied to the child entity, but can be overridden in its class.
An important element of the new entity class is the @Extends annotation, which takes the parent class as a parameter. It enables creating a registry of child entities and forces the
platform mechanisms to use them everywhere instead of the parent ones. The registry is implemented by the ExtendedEntities class, which is a Spring bean named cuba_ExtendedEntities, and is also accessible via the Metadata interface.
Add a localized name of the new attribute to the com.sample.sales.entity package:
messages.properties
ExtUser.address=Address
messages_ru.properties
ExtUser.address=Адрес
Register the new entity in the persistence.xml file of the project:
<class>com.sample.sales.entity.ExtUser</class>
Add the update script for the corresponding table to the database create and update scripts:
alter table SEC_USER add ADDRESS varchar(100)
