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A set of components that help developers building their own domain object classes.

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package com.github.jhonyscamacho.persistence.generic;

import com.github.jhonyscamacho.domain.DomainObject;

/**
 * 
 * @author Jhonathan Camacho
 *
 * @param 
 *            any object that extends {@link DomainObject}
 * 
 * @see DomainObject
 */
public interface GenericDAO {
	/**
	 * Persist the object in the database.
	 * 
	 * @param object
	 *            the object to be persisted.
	 * @return true if the object was persisted. Return false otherwise.
	 */
	public boolean persist(T object);

	/**
	 * Update the object in the database.
	 * 
	 * @param object
	 *            the object to be updated.
	 * @return the updated object.
	 */
	public T update(T object);

	/**
	 * Remove the object from the database.
	 * 
	 * @param object
	 *            the object to be removed from the databse.
	 * @return true if the object was removed. Return false otherwise.
	 */
	public boolean remove(T object);

	/**
	 * Find an object by object's id.
	 * 
	 * @param id
	 *            the object's id.
	 * @return the object that have the informed id. Return null if there is no
	 *         object with the informed id.
	 */
	public T findById(long id);
}