Descripción:
Trabajar con software orientado a objetos y bases de datos relacionales puede hacernos invertir mucho tiempo en los entornos actuales. Hibernate es una herramienta que realiza el mapping entre el mundo orientado a objetos de las aplicaciones y el mundo entidad-relación de las bases de datos en entornos Java. El término utilizado es ORM (object/relational mapping) y consiste en la técnica de realizar la transición de una representación de los datos de un modelo relacional a un modelo orientado a objetos y viceversa. Hibernate no solo realiza esta esta transformación sino que nos proporciona capacidades para la obtención y almacenamiento de datos de la base de datos que nos reducen el tiempo de desarrollo.
Objetivo:
El Curso de Hibernate, entre otras cosas el alumno aprenderá a conocer las clases principales para implementar Hibernate y la funciones de cada una. Resolver la diferencia entre el modelo relacional y de objetos. Realizar acciones básicas de insert, delete, update y select con Hibernate. Ejecutar queries HQL y SQL desde Java. Utilizar queries parametrizadas. Aplicar técnicas de paginado con Hibernate. Utilizar queries guardados en archivos de texto desde Hibernate. Utilizar las diferentes soluciones para mapear herencia con Hibernate.
Temario:
Parte 1: Construcción de una aplicación simple
Herramientas | Archivo de configuración | Persistencia múltiple en Objetos | Persistencia en Clases | Mapeo de Objetos | Creación de tablas | Sesiones | DAO’s
Parte 2: Uso de anotaciones con Hibernate
Mapeos con anotaciones en Hibernate | Entidades y llaves primarias | Code Listings
Parte 3: El ciclo de vida de Persistencia
Guardando Objetos | Igualdad e identidad de Objetos | Carga, actualización y eliminación de Objetos | Operaciones en cascada | EJB3/JSR 220 API de persistencia
Parte 4: Creación de mapeos
Hibernate Types | Anatomía de un archivo de mapeo | Mapeo de Clases simples | Mapeo de composiciones y Colecciones | Mapeo de relaciones y herencia
Parte 5: Consulta de Objetos con Criterios
Uso del API de consultas con Criterios | Restricciones | Asociaciones
Parte 6: Consultas con HQL y SQL
Comprendiendo HQL | Clauses y Alias | Uso de parámetros | Ordenando resultados | Asociaciones | Uso nativo de SQL
Parte 7: Uso de Sesión
Sesiones | Transacciones y bloqueo | Cacheo | Hilos
Parte 8: Consideraciones de Diseño en Hibernate 3
Diseño del Modelo de Objetos | Mapeo con Hibernate | Creación de un esquema de Base de Datos | La aplicación Jav
Parte 9: Eventos e Interceptores
Eventos | Interceptores
Parte 10: Filtros Hibernate
Dónde utilizar los Filtros | Definiendo Filtros | Uso de Filtros en tu aplicación
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