Create a Customer entity class.
创建一个Customer实体类。
An Entity class needs a primary key.
Entity类需要一个主键。
Each business entity will become an entity class.
每一个业务实体都将变成一个实体类。
How does this entity class tie in with a database?
这个实体类如何与数据库联系起来？
You can then define that object as a field on an entity class.
然后可以将该对象定义为实体类上的一个字段。
Listing 1 shows a simple EJB3 entity class called GreetingCard.
清单1展示了一个简单的EJB3实体类，称为GreetingCard。
An entity class is created and appears on the design surface.
实体类别随即建立并出现在设计介面上。
As you can see, we simply bind to the User property of the entity class.
正如你所看到的，我们只是绑定到实体类的用户属性。
Figure 1 shows the entire Department table, along with the corresponding entity class.
图1显示出了整个的department表，以及相应的实体类。
A loader bean is added to the objectgrid.xml along with the necessary entity class names.
加载器bean可以与必要的实体类名一起被加入到objectgrid .xml中。
Drag the Customer class to the Entity Classes parameter to update the session bean class.
将Customer类拖至entity Classes参数用以更新session bean类。
The entity class has properties that map to the columns in the selected table or view.
这个实体类别的属性会对应至所选取资料表或检视中的资料行。
The Employee entity class contains the representation of the table and its column as fields.
Employee实体类包含了表格与它包含的列。
Demonstrates how to create an entity class and a simple query to filter the entity class.
演示如何创建一个实体类以及一个用于筛选实体类的简单查询。
Below is an example of how you can define a named query and associate it with an entity class.
下面是如何定义命名查询，并将其与实体类关联的一个示例？
The wizard generates an entity class with the same name as the corresponding database table.
向导生成的实体类名称与对应的数据库表名完全一样。
Your entity class must have matching fields on the class or it can embed the key as an embeddable key
您的实体类必须在类上具有匹配字段，或者它可以作为可嵌入键嵌入该键
For example, an entity class named Department is assumed to map to a database tabled named Department.
例如，假设一个名为Department的实体类，与一个名为Department的数据库表相映射。
In other words, an entity class can have only a 1:1 mapping relationship with a database table or view.
换句话说，实体类与数据库表或视图之间只能具有1：1映射关系。
The following procedure shows how to validate when an attempt is made to update a complete entity class.
下面的过程演示在尝试更新完整实体类时如何进行验证。
The concrete DAO for the Person entity class should add finder methods that are specific to the Person entity.
Person实体类的具体DAO应该增加一个特定于Person实体的finder方法。
Any information exchanged as part of those requests (e.g., parameters) is represented by an instance of an IO Entity class.
任何作为那些请求一部分的交换的信息(例如，参数)都由一个IO实体类的实例表示。
This is done to more accurately represent the fact that the instantiated entity class maps to a single record of data.
这样可以更准确地表示实例化的实体类映射到单个数据记录的事实。
The Entity class is the superclass of many of SketchUp's classes, as shown in Figure 2, which shows most of the Entity subclasses.
Entity类是SketchUp 中很多类的超类，如图2 所示，该图显示了大部分 Entity 子类。
In addition to checking values during changes, you can also validate data when an attempt is made to update a complete entity class.
除了可以检查变更期间的值以外，您还可以在发生整个实体类别的更新时验证资料。
An entity class is a class that represents an entity in a business model. In our model, the entity classes are Customer, Order, and OrderItem.
一个实体类在业务模型中代表着一个实体，在我们的业务模型中，实体类是Customer、Order、和OrderItem。
Instead, you can use the Hibernate Validator annotations to assign validation criteria to the properties of your entity class, as shown in Listing 13.
取而代之，可以使用HibernateValidator注释向实体类属性指派验证标准，如清单13所示。
For better readability, the relationships in our scenario are expressed through object or relational metadata specified directly in the entity class files.
为了提高可读性，通过在实体类文件中直接指定的对象或关系元数据表达场景中的关系。
To add a new row to your table, you simply create an instance of your entity class, set the attributes, and tell the EntityManager to persist the new entity.
为了向您的表格添加一个新行，您只需创建一个实体类的实例，设置其属性，并更新类entitymanager以支持新实体。
To add a new row to your table, you simply create an instance of your entity class, set the attributes, and tell the EntityManager to persist the new entity.
为了向您的表格添加一个新行，您只需创建一个实体类的实例，设置其属性，并更新类entitymanager以支持新实体。
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