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)。
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。
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 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。
The key reason why we decided to have a utility class for data access was to ensure that the same classes could be used to connect to any type of Domino database.
决定实现一个实用程序类来进行数据访问的关键原因是，希望确保可以使用相同的类来连接任何类型的Domino数据库。
Class that is empty, has the specified initial capacity, and USES the default equality comparer for the key type.
类的新实例，该实例为空且具有指定的初始容量，并为键类型使用默认的相等比较器。
The <many-to-many> tag's column attribute specifies the foreign key column in the link table that relates the link table to the mapping table for the target class.
<many-to-many>标签中的column属性用来指定连接表与目标类的映射表链接的外键。
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)。
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。
The key to Joda's internals — and at the heart of its design — is the chronology (the notion of which is captured by an abstract class of the same name).
Joda 本质 —以及其设计核心 —的关键就是年表（它的含义由一个同名抽象类捕捉）。
The key to the dependency-injection approach is that you query data by injecting the Class of the entity that the DAO will be querying, along with defining the generic type.
依赖项注入方式的关键是，在查询数据时，要注入DAO将查询的实体的Class并定义泛型类型。
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。
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。
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。
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 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 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。
Whatever value you specify here can be overridden by an entry in the device's hardware key or class key. If both keys have an override, the hardware key has precedence.
这个值可以被设备的硬件键值或类键值的条目替代，如果这两个键值都被替代了，那么硬件键值将具有更高的优先权。
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。
The key factor in selecting the testing strategy for the bean implementation class is the fact that the class fully relies on its collaborators to provide its services.
选择bean实现类的测试策略的主要因素是类完全依赖协作者来提供服务。
Normally, to associate that class to another class, you would use a has_one relationship and a simple foreign key.
通常，为了将该类关联到另一个类，可以使用 has_one关系和一个简单的外键。
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
I used a hash map as a class attribute, but had to construct a key that included the country, the region, and the page start, as shown in the LoadCities method.
我使用一个散列映射作为类属性，但是必须构造一个包含国家、地区和页面起点的键，见LoadCities方法。
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 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。
The modified AnyAction class in Listing 10 demonstrates how to retrieve the request scope key from the RequestContext object and pass the RequestContext object to EJB components.
修改后的anyaction类(清单10)演示如何从RequestContext对象获取请求范围键并把RequestContext对象传递给EJB组件。
This class takes a (key,value) pair as an input and maps that input to a new (key,value) pair.
这个类接受一个 (key,value)对作为输入，然后将该输入映射到一个新的 (key,value) 对。
However, in this class 'pkey' is a primary key of the event EJB, and the method returns an Enumeration of clients attending a particular event.
然而在该类中，' pkey '是EventEJB的主键，该方法返回参加特定活动的客户的枚举列表。
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。
Joined table: (Optional) the child class is mapped to a table that has a foreign key relationship to the table to which the parent is mapped.
联合表：(可选)将子类映射到与父类映射到的表具有外键关系的表。
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