Little training is needed to learn JDO.
学习JDO只需很少的培训。
Jdo2-api-2.3-SNAPSHOT.jar: For using the jdo API.
jdo2-api - 2.3 -SNAPSHOT . jar：用于使用jdo api。
Querying db4o using SQL via JDO or JPA, using sql4o.
借助于J DO或者JPA使用sql、sql4o查询db4o。
JDO objects cannot be accessed directly by a J2EE client.
J2EE客户机不能直接访问jdo对象。
Entity beans and JDO share the following characteristics.
实体bean和JDO都有以下特征。
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。
What JDO lacks in best practices it makes up for in simplicity.
对于在最佳实践方面的不足，JDO用简单性来弥补。
Support for basic JDOQL querying of objects stored in LDAP via JDO.
支持通过JDO对存储在LDAP中的对象进行基本JDOQL查询。
JDO does not require the application to provide any explicit mappings.
JDO并不需要程序去提供任何显式的映射。
JDO has also adopted much of the high-level architecture used by JDBC.
JDO还采用了很多JDBC使用的高级体系结构。
The JDO examples provide a one-to-one representation of tables to objects.
JDO示例提供了表到对象的一对一表示。
JDO reduces release cycles and increases software quality for persistence code.
JDO可以缩短发布周期，并提高持久性代码的软件质量。
Org.acme.membership.domain, which holds the JDO enhanced business domain classes.
它含有JDO增强的业务域类。
Support for basic JDOQL querying of objects stored in LDAP via JDO, utilizing JAXB.
支持通过JDO对存储在LDAP中的对象进行基本JDOQL查询，这利用了JAXB。
JDO programmers are able to operate entirely within an object-oriented paradigm.
JD o程序员能完全在面向对象的范例内操作。
Essentially, PersistenceManager is the main interface to the JDO persistence system.
基本上，PersistenceManager是JDO持久性系统的主接口。
Few companies have yet been willing to try using JDO in business-class implementations.
几乎没有几家公司愿意尝试在业务级实现中使用JDO。
This is true of EJB components using JDBC and it also true of EJB components using JDO.
使用JDBC的EJB组件是这样做的，使用JDO的EJ b组件也是这样做的。
With a simple triathlon JDO POJO defined and a PersistenceMgr object handy, I'm good to go.
利用定义好的简单triathlonJDOPOJO和方便的persistencemgr对象，我已经有了很好的起点。
JDO isn't quite as popular as it was a few years ago, but it's still a nice feature to have.
尽管不再像前几年那么流行，JDO仍然是一个不错的功能。
JPOX has been chosen by Sun to be the reference implementation for the JDO 2.0 specification.
JPOX已经被Sun选作JDO 2.0规范的参考实现。
Castor JDO is just one of many data-binding solutions available in the open source world today.
Castorjdo只不过是当今开放源码世界中许多可用数据绑定解决方案中的一种。
You can set up relationships in JPA and JDO, but they can only be used for persisting relationships.
您可以在JPA和JD o间设置关系，但它们只能用来持久化关系。
An application written using the Google Eclipse Plugin already has all the libraries it needs to use JDO.
使用GoogleEclipsePlugin编写的应用程序已经拥有了使用JDO所需的所有库。
This is where you can start to see how JDO allows you to handle persistence in an object-oriented fashion.
从这里开始可以看到JDO如何允许您以面向对象的方式来处理持久性。
When deciding between entity beans and JDO, consider the following pros and cons for each technology.
在确定采用实体bean还是采用JDO时，请考虑这两种技术的以下优缺点。
This introductory article should be enough to get you started with the JPOX implementation of JDO 2.0.
这篇介绍性的文章应该足以让您初识J DO 2.0的JPOX实现。
While these numbers don't suggest that JDO is a bad technology, they do suggest it's still on the cutting edge.
尽管这些数据并不表示JDO是一种差劲的技术，但它们确实表明它还处于前沿。
It also includes a jdoconfig.xml file, so once you annotate the Contact class, you'll be ready to start using jdo.
它还包含了一个jdoconfig . xml文件，因此，一旦对contact类进行了注释，您就已经准备好开始使用jdo。
Initially released in December 1999, Castor JDO was one of the first open source data binding frameworks available.
CastorJDO最早发布于1999年12月，它是第一批可用的开放源码数据绑定框架之一。
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