GenericService.java

package org.appfuse.gwt.client.service;

import java.io.Serializable;

/**
 * Generic Services to allow easily creating GWT services.
 *
 * @author mraible
 * @param <T> a type variable
 * @param <PK> the primary key for that type
 */
public interface GenericService<T, PK extends Serializable> {

    /**
     * Generic method used to get all objects of a particular type. This
     * is the same as lookup up all rows in a table.
     */
    void getAll();

    /**
     * Generic method to get an object based on identifier. 
     *
     * @param id the identifier (primary key) of the object to get
     */
    void get(PK id);

    /**
     * Generic method to save an object - handles both update and insert.
     * @param object the object to save
     */
    void save(T object);

    /**
     * Generic method to delete an object based on id
     * @param id the identifier (primary key) of the object to delete
     */
    void delete(PK id);
}