CMP entity beans are J2EE server dependent.
CMP实体bean依赖于J2EE服务器。
Access session and entity beans asynchronously.
异步地访问会话bean和实体bean。
The following two tables support our entity beans.
以下是支持我们实体Bean的两张表。
Invoking entity beans from portlet code is similar.
从portlet代码调用实体bean是类似的。
First, create a JPA project to host your JPA entity beans.
首先，您要创建一个JPA项目以放置您的JPA实体beans。
We didn't change a single line in our existing entity beans.
我们没有改变现有实体Bean中的任何一行。
Session beans typically operate on one or more entity beans.
会话bean通常会操作一个或多个实体bean。
So, let's define the constraints for each of our entity beans.
那么，让我们为每个实体Bean来定义约束吧。
Two types of EJB technology are entity beans and session beans.
EJB技术的两种类型是实体bean和会话bean。
JDO and entity beans are both based on a vendor-neutral standard.
JDO和实体bean都基于与供应商无关的标准。
ReadOnly concurrency strategy is used for read-only entity beans.
ReadOnly并发策略用于只读的实体bean。
They can also support entity beans, JSPs (JSP Model II), or servlets.
他们也能够支持实体bean、JSP (JSPModelII)或者servlet。
For example, entity beans made you code up to seven files for each entity.
例如，实体bean会让您为每个实体编写7个文件。
This lookup code is similar to code that's in the session or entity beans.
这段查找代码类似于会话或实体 bean中的代码。
Each time a servlet accessed the entity beans, a network call was required.
每次servlet访问实体bean时，都需要一个网络调用。
If you use entity beans in this context, avoid giving them a remote interface.
如果在此环境中使用实体Bean，请避免给予其远程接口。
The JPA specification in its current form does not define read-only entity beans.
当前形式的JPA规范没有定义只读实体bean。
On the other side of the coin, entity beans suffer from four basic disadvantages.
另一方面，实体bean也有四个主要缺点。
So, let's see what it takes to build a Grails application backed by EJB3 entity beans.
那么，让我们看看基于EJB3实体Bean构建Grails应用要做哪些工作。
Despite the many advantages of using entity beans, they're not always the best solution.
尽管使用实体bean有许多好处，但它们并不总是最佳解决方案。
Figure 2 shows you the relationship diagram for CMP entity beans used in our application.
图2显示了我们的应用程序中所使用的CMP实体Bean之间的关系图。
The new session bean makes calls to the entity beans on the server on behalf of a client.
新的会话bean代表客户机对服务器上的实体bean进行调用。
Like BMP entity beans, this solution requires the developer to write the persistence code.
象BMP实体bean一样，该解决方案要求开发人员编写持久性代码。
The persistence.xml file configures the backend database source for the EJB3 entity beans.
xml文档为ejb3实体bean配置了后台数据源。
Types for JPA are entities (no longer called entity beans), which can be mapped to tables.
JPA 的类型是实体（不再称为实体Bean），这些实体可以映射到表。
Session beans are typically used to implement business logic and encapsulate entity beans.
典型情况下，会话bean用于实现业务逻辑和封装实体bean。
Make sure that you create a local database and tables for entity beans before invoking them.
在调用实体bean之前，一定要为它们创建一个本地数据库和表。
When we talk about persistence in the J2EE environment, we likely refer to the entity beans.
在谈论J2EE环境中的持久性时，我们很可能要涉及实体bean。
Session beans and entity beans can send JMS messages, but can only receive them synchronously.
会话bean和实体bean可以发送JMS消息，但只能同步接收这些JMS消息。
When it comes to enterprise-level data persistence, entity beans offer the following advantages.
谈到企业级数据持久性时，实体bean有下列优点。
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