org.eclipse.osbp.dsl.examples.entity/models/Example04-entities.entitymodel

/**
 * Entities and their modifications
 * 
 * Entities can be declared within a package. There are the following modificators:
 * 
 * - abstract: generates an abstract Java class
 * - cacheable: marks the entity as cacheable for the persistence provider
 * - historized: adds fields for object ID and object version and a flag to
 *   mark the current version. One way to deal with multiple database entries
 *   for a single object (e.g. keeping track of old values when updating)
 * - timedependent: adds fields for object ID as well as starting and ending
 *   point of the validity of the database entry. Another way to deal with 
 *   multiple database entries for a single object; the valid entry is determined
 *   based on the "valid from" and "valid until" fields; can handle future dates
 *   (e.g. varying price of a product).
 * 
 * - extends: Entities can extend other entities, inheriting their properties and
 *   persistence settings.
 */

package org.eclipse.osbp.entitydsl.samples.example04 {

	entity NormalEntity { 
		uuid String id ;
	}

	entity ExtendedEntity extends NormalEntity {
		
	}

	abstract entity AbstractEntity {
		uuid String id;
	}

	cacheable entity CacheableEntity {
		uuid String id ;
	}

	historized entity HistorizedEntity {
		uuid String id ;
	}
}