mapear registros de tabla de base de datos java

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So, every time we need a Restaurant object even for a few fields, all the others are retrieved.

So how the same can be done using annotations for entites Do we need to create an extra class RestaurantLite If then, how the above criteria returns Restaurant objects.

To what degree Have you measured As the Hibernate docs note: optimizing row reads is much more important than optimization of column reads.

However, only loading some properties of a class could be useful in extreme cases.

For example, when legacy tables have hundreds of columns and the data model cannot be improved.

The class mentioned above is needed for most of the operations.

So, retrieving all properties for each restaurant every time definitely impacts performance.

As the Hibernate docs point out column optimizations are rarely worthwhile.

A ver, uso NetBeans 8.2, Glassfish 5 y Java DB (Derby) includa en NetBeans.

Responder Ricardo Arratia dice: 23 diciembre, 2020 a las 12:20 pm Estimado Oscar: Tengo una consulta.

Mapear Registros De Tabla De Base De Datos Java