Next up in Listing 2 is the @IdClass annotation, which defines the composite key class reference.
清单2中的下一个注释是 @IdClass，它定义组合键类引用。
Version 2.0 of the EJB specification defines a primary key class as any class that is a legal value type in RMI-IIOP.
EJB规范的 2.0版将主键类定义成任何是 RMI-IIOP中合法值类型的类。
And we design real estate transaction subsystem from the use case view, logical view, dynamic view, key class diagrams, deployment view in detail.
并且针对房产交易登记子系统，对该子系统从用例视图、逻辑视图、动态视图、关键类图、部署视图等方面进行详细设计。
We also use a primary key class, constructed from the values comprising the EJB primary key, to make it easy to specify the primary key as a single entity.
我们还使用由组成ejb主键的值构建的主键类使得把主键指定为一个单独的实体很容易。
The actor still remembers the excitement in his class when a female classmate was chosen for a key role in a Zhang Yimou film.
这名演员还记得他班上的一位女同学被选中在张艺谋的电影中担当主角时的激动情形。
Taking notes in class is not writing down everything the teacher has said, but recording the key points of the teacher's words after comprehension.
上课做笔记并不是把老师说的话全都记下来，而是在理解后记下老师所说的要点。
To convert an existing column into a primary key, click on the column (property in the class) in the diagram.
要转换一个已有的列成为一个主键，在图中点击这个列(类中的属性)。
This is yet another class that supports sorted collection of objects where each sort key must be unique.
这是另外一个可以支持排序的对象集合的类，其中每个排序键必须是唯一的。
The methods of this class manage (key, value) pairs and multivalue fields.
该类的方法将管理（关键字，值）对和多值字段。
The use of the class as the primary means of abstraction is key to object-oriented framework design.
作为抽象的主要方法，类的使用在面向对象框架设计中是很关键的。
Using these segregations of data, you can focus on key elements of basic data analysis for each data class.
通过使用这些被分类的数据，对于每种数据类别，都可以将数据分析集中于关键的元素。
The management of trust stores and key stores is now handled as a first class construct.
信任存储区和密钥存储区的管理现在作为第一类构造进行处理。
For a good object-oriented approach, you will create a specific class to manage all the necessary status key values.
对于一个良好的面向对象的方法来说，您将创建一个特定的类来管理所有必要的状态键值。
They can be embedded within a request or response class, and serve as the key data that the client USES.
基类可以被嵌入在请求或响应类中，还可以用作客户机使用的关键数据。
The constructor of the class extracts the JNDI name and the unique key, and then checks the Distributed Map for the data.
这个类的构造函数提取JNDI名和唯一密钥，并检查分布式映射缓存中的数据。
Also, notice how the primary key and foreign key properties represent the relationships on the Deals on Wheels class diagram.
此外，注意主键和外来键属性是怎样表达车辆调度类图的关系的。
Each one-to-many association is buried as a foreign key in the table of the many class.
每个一对多的关联在表中多个类中充当外键。
The key is for the activity to be new for each of you, like a salsa dancing class.
重点是，这项活动对于你们两个来说都是陌生的，比如萨尔萨舞。
Four baby monkeys created in a laboratory in the United States could hold the key to the eradication of a class of incurable genetic diseases, scientists revealed today.
科学家今天透露，美国某实验室里诞生的四只猴宝宝可能持有根治某种无法治愈的遗传病的关键。
This table will be used by the key manager class to generate the new key values.
键管理器类将使用该表生成新键值。
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
To illustrate this, let's first define a simple RectangularObject class, which exposes three key properties to the configuration API: the length, width, and height.
作为一个例子，首先定义简单的rectangularobject类，它向配置API公开了三个主要属性：长、宽和高。
To find an individual entity by its key, you simply invoke the get method, which takes a class type and the key.
为根据键找到个别实体，您仅需调用get方法，该方法接受一个类类型和键。
Once you generate the key, you can use the AbderaSecurity class to get an Encryption object and feed it the key you just created.
生成密钥之后，便可以使用AbderaSecurity类获得一个Encryption对象并把刚创建的密钥提供给它。
The KeyedFile class represents a system file that has access by key while the SequentialFile class represents a system file that has access by record number.
Keyed file类表示一个通过密钥访问的系统文件，而sequentialfile类表示一个通过记录编号访问的系统文件。
The table must match the definition of your attributes; for example, the primary database key for the equations table must be the primary key of the Persistent class as well.
表必需与属性定义匹配，例如，等式表的主数据库键必须也是 Persistent类的主键。
The find method requires you to know the primary key as well as the actual class type.
find方法要求您知道主键和实际类的类型。
Add an attribute called id of type Key (see the import list for the fully qualified class name).
添加一个类型为Key的id属性(见于完全合格类名的导入列表)。
This statement creates an instance of the IndexWriter class, which is a key component in the indexing process.
这条语句创建了类IndexWriter的一个实例，该类也是Lucene索引机制里面的一个关键类。
The column attribute specifies the column in the mapping table for the owning class that is used as the foreign key to the target class.
colum n属性指定当前类的映射表与目标类用作外键的列。
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