fetchtype

 hibernate bidirectional onetoone fetchtype lazy problemCategory: Hibernate2013-06-26 14:54 932 people read comments (2) favorite reports Reproduced in: http://mshijie.javaeye.com/admin/blogs/440057When you use JPA (Hibernate) today to implement

 Hibernate fetchtype UnderstandingCategory: Hibernate2010-09-13 23:07 7476 People read Comments (4) favorite reports Hibernatenulltableclass Database WrapperReproduced in:

JPA defines the relationships between entities in the following ways:@OneToOne@ManyToOne@OneToMany@ManyToManyWhen defining them, you can specify the loading mode by using the Fetch property, which has two values:Fetchtype.lazy: Lazy LoadingFetchtype.

JPA defines the relationships between entities in the following ways:@OneToOne@ManyToOne@OneToMany@ManyToManyWhen defining them, you can specify the loading mode by using the Fetch property, which has two values:Fetchtype.lazy: Lazy LoadingFetchtype.

Annotation configuration of javax. Persistence in JPA User Guide Blog type: Java JPA Configuration Management beanhibernateorm JPA annotation persistence class is very convenient, need jar package: ejb3-persistence.jar. I use the following

Data | database II. Abstract database interfaces (using data manipulation management classes) In the MVC pattern development, the model layer is responsible for all the operations of the database, in order to the operation of the database unified

Learn extjs5 with me (33 -- Design of a single module [1 create a table and bean])Learn extjs5 with me (33 -- Design of a single module [1 create a table and bean])Now the first core part of the system is how to design the functions of the module.

2. Abstract Database interfaces (using data operation management class) During MVC development, the model layer is responsible for all database operations. To manage database operations in a unified manner, we need to define a database operation

Common hibernate annotation labels are as follows: @ Entity-- Annotation declares that the class is a persistent class. Declare a JavaBean class as a database table ing Class of an object, so it is best to implement serialization. by default, all

We will continue to introduce the hibernate annotation content. 1. onetoone lazy loading When using a one-to-one annotation and using a foreign key column for object Association, you need to pay attention to the lazy loading problem. As