basic_mapping.po

hibernate 开源框架的代码 jar包希望大家能喜欢

msgid ""
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"POT-Creation-Date: 2007-10-25 01:01+0000\n"
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"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
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"Content-Transfer-Encoding: 8bit\n"

#. Tag: title
#: basic_mapping.xml:5
#, no-c-format
msgid "Basic O/R Mapping"
msgstr "对象/关系数据库映射基础(Basic O/R Mapping)"

#. Tag: title
#: basic_mapping.xml:8
#, no-c-format
msgid "Mapping declaration"
msgstr "映射定义（Mapping declaration）"

#. Tag: para
#: basic_mapping.xml:10
#, no-c-format
msgid ""
"Object/relational mappings are usually defined in an XML document. The "
"mapping document is designed to be readable and hand-editable. The mapping "
"language is Java-centric, meaning that mappings are constructed around "
"persistent class declarations, not table declarations."
msgstr ""
"对象和关系数据库之间的映射通常是用一个XML文档(XML document)来定义的。这个映射"
"文档被设计为易读的， 并且可以手工修改。映射语言是以Java为中心，这意味着映射文"
"档是按照持久化类的定义来创建的， 而非表的定义。"

#. Tag: para
#: basic_mapping.xml:17
#, no-c-format
msgid ""
"Note that, even though many Hibernate users choose to write the XML by hand, "
"a number of tools exist to generate the mapping document, including XDoclet, "
"Middlegen and AndroMDA."
msgstr ""
"请注意，虽然很多Hibernate用户选择手写XML映射文档，但也有一些工具可以用来生成"
"映射文档， 包括XDoclet,Middlegen和AndroMDA。"

#. Tag: para
#: basic_mapping.xml:23
#, no-c-format
msgid "Lets kick off with an example mapping:"
msgstr "让我们从一个映射的例子开始："

#. Tag: programlisting
#: basic_mapping.xml:27
#, no-c-format
msgid ""
"<![CDATA[<?xml version=\"1.0\"?>\n"
"<!DOCTYPE hibernate-mapping PUBLIC\n"
"      \"-//Hibernate/Hibernate Mapping DTD 3.0//EN\"\n"
"          \"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd\">\n"
"\n"
"<hibernate-mapping package=\"eg\">\n"
"\n"
"        <class name=\"Cat\"\n"
"            table=\"cats\"\n"
"            discriminator-value=\"C\">\n"
"\n"
"                <id name=\"id\">\n"
"                        <generator class=\"native\"/>\n"
"                </id>\n"
"\n"
"                <discriminator column=\"subclass\"\n"
"                     type=\"character\"/>\n"
"\n"
"                <property name=\"weight\"/>\n"
"\n"
"                <property name=\"birthdate\"\n"
"                    type=\"date\"\n"
"                    not-null=\"true\"\n"
"                    update=\"false\"/>\n"
"\n"
"                <property name=\"color\"\n"
"                    type=\"eg.types.ColorUserType\"\n"
"                    not-null=\"true\"\n"
"                    update=\"false\"/>\n"
"\n"
"                <property name=\"sex\"\n"
"                    not-null=\"true\"\n"
"                    update=\"false\"/>\n"
"\n"
"                <property name=\"litterId\"\n"
"                    column=\"litterId\"\n"
"                    update=\"false\"/>\n"
"\n"
"                <many-to-one name=\"mother\"\n"
"                    column=\"mother_id\"\n"
"                    update=\"false\"/>\n"
"\n"
"                <set name=\"kittens\"\n"
"                    inverse=\"true\"\n"
"                    order-by=\"litter_id\">\n"
"                        <key column=\"mother_id\"/>\n"
"                        <one-to-many class=\"Cat\"/>\n"
"                </set>\n"
"\n"
"                <subclass name=\"DomesticCat\"\n"
"                    discriminator-value=\"D\">\n"
"\n"
"                        <property name=\"name\"\n"
"                            type=\"string\"/>\n"
"\n"
"                </subclass>\n"
"\n"
"        </class>\n"
"\n"
"        <class name=\"Dog\">\n"
"                <!-- mapping for Dog could go here -->\n"
"        </class>\n"
"\n"
"</hibernate-mapping>]]>"
msgstr ""

#. Tag: para
#: basic_mapping.xml:29
#, no-c-format
msgid ""
"We will now discuss the content of the mapping document. We will only "
"describe the document elements and attributes that are used by Hibernate at "
"runtime. The mapping document also contains some extra optional attributes "
"and elements that affect the database schemas exported by the schema export "
"tool. (For example the <literal> not-null</literal> attribute.)"
msgstr ""
"我们现在开始讨论映射文档的内容。我们只描述Hibernate在运行时用到的文档元素和属"
"性。 映射文档还包括一些额外的可选属性和元素，它们在使用schema导出工具的时候会"
"影响导出的数据库schema结果。 （比如，<literal> not-null</literal> 属性。）"

#. Tag: title
#: basic_mapping.xml:40
#, no-c-format
msgid "Doctype"
msgstr "Doctype"

#. Tag: para
#: basic_mapping.xml:42
#, no-c-format
msgid ""
"All XML mappings should declare the doctype shown. The actual DTD may be "
"found at the URL above, in the directory <literal>hibernate-x.x.x/src/org/"
"hibernate </literal> or in <literal>hibernate3.jar</literal>. Hibernate will "
"always look for the DTD in its classpath first. If you experience lookups of "
"the DTD using an Internet connection, check your DTD declaration against the "
"contents of your claspath."
msgstr ""
"所有的XML映射都需要定义如上所示的doctype。DTD可以从上述URL中获取， 也可以从"
"<literal>hibernate-x.x.x/src/net/sf/hibernate</literal>目录中、 或"
"<literal>hibernate.jar</literal>文件中找到。Hibernate总是会首先在它的"
"classptah中搜索DTD文件。 如果你发现它是通过连接Internet查找DTD文件，就对照你"
"的classpath目录检查XML文件里的DTD声明。"

#. Tag: title
#: basic_mapping.xml:52
#, no-c-format
msgid "EntityResolver"
msgstr "EntityResolver"

#. Tag: para
#: basic_mapping.xml:53
#, no-c-format
msgid ""
"As mentioned previously, Hibernate will first attempt to resolve DTDs in its "
"classpath. The manner in which it does this is by registering a custom "
"<literal>org.xml.sax.EntityResolver</literal> implementation with the "
"SAXReader it uses to read in the xml files. This custom "
"<literal>EntityResolver</literal> recognizes two different systemId "
"namespaces."
msgstr ""
"As mentioned previously, Hibernate will first attempt to resolve DTDs in its "
"classpath. The manner in which it does this is by registering a custom "
"<literal>org.xml.sax.EntityResolver</literal> implementation with the "
"SAXReader it uses to read in the xml files. This custom "
"<literal>EntityResolver</literal> recognizes two different systemId "
"namespaces. 如前所述,Hibernate首先在其classpath中查找DTD。其行为是依靠在系统"
"中注册的<literal>org.xml.sax.EntityResolver</literal>的一个具体实现，"
"SAXReader依靠它来读取xml文件。这一 <literal>EntityResolver</literal> 实现能辨"
"认两种不同的 systenId命名空间。"

#. Tag: para
#: basic_mapping.xml:61
#, no-c-format
msgid ""
"a <literal>hibernate namespace</literal> is recognized whenever the resolver "
"encounteres a systemId starting with <literal>http://hibernate.sourceforge."
"net/</literal>; the resolver attempts to resolve these entities via the "
"classlaoder which loaded the Hibernate classes."
msgstr ""
"若resolver遇到了一个以<literal>http://hibernate.sourceforge.net/</literal>为"
"开头的systemId，它会辨认出是<literal>hibernate namespace</literal>，resolver"
"就试图通过加载Hibernate类的classloader来查找这些实体。"

#. Tag: para
#: basic_mapping.xml:70
#, no-c-format
msgid ""
"a <literal>user namespace</literal> is recognized whenever the resolver "
"encounteres a systemId using a <literal>classpath://</literal> URL protocol; "
"the resolver will attempt to resolve these entities via (1) the current "
"thread context classloader and (2) the classloader which loaded the "
"Hibernate classes."
msgstr ""
"若resolver遇到了一个使用<literal>classpath://</literal>URL协议的systemId，它"
"会辨认出这是<literal>user namespace</literal>,resolver试图通过(1)当前线程上下"
"文的classloader和(2)加载Hibernate class的classloader来查找这些实体。"

#. Tag: para
#: basic_mapping.xml:79
#, no-c-format
msgid "An example of utilizing user namespacing:"
msgstr "使用user namespace(用户命名空间)的例子："

#. Tag: programlisting
#: basic_mapping.xml:82
#, no-c-format
msgid ""
"<![CDATA[<?xml version=\"1.0\"?>\n"
"<!DOCTYPE hibernate-mapping PUBLIC\n"
"        \"-//Hibernate/Hibernate Mapping DTD 3.0//EN\"\n"
"        \"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd\" [\n"
"    <!ENTITY types SYSTEM \"classpath://your/domain/types.xml\">\n"
"]>\n"
"\n"
"<hibernate-mapping package=\"your.domain\">\n"
"    <class name=\"MyEntity\">\n"
"        <id name=\"id\" type=\"my-custom-id-type\">\n"
"            ...\n"
"        </id>\n"
"    <class>\n"
"    &types;\n"
"</hibernate-mapping>]]>"
msgstr ""

#. Tag: para
#: basic_mapping.xml:83
#, fuzzy, no-c-format
msgid ""
"Where <literal>types.xml</literal> is a resource in the <literal>your."
"domain</literal> package and contains a custom <xref linkend=\"mapping-types-"
"custom\"/>typedef."
msgstr ""
"<literal>types.xml</literal>是<literal>your.domain</literal>包中的一个资源，"
"它包含了一个定制的<xref linkend=\"mapping-types-custom\">typedef</xref>。"

#. Tag: title
#: basic_mapping.xml:91
#, no-c-format
msgid "hibernate-mapping"
msgstr "hibernate-mapping"

#. Tag: para
#: basic_mapping.xml:93
#, no-c-format
msgid ""
"This element has several optional attributes. The <literal>schema</literal> "
"and <literal>catalog</literal> attributes specify that tables referred to in "
"this mapping belong to the named schema and/or catalog. If specified, "
"tablenames will be qualified by the given schema and catalog names. If "
"missing, tablenames will be unqualified. The <literal>default-cascade</"
"literal> attribute specifies what cascade style should be assumed for "
"properties and collections which do not specify a <literal>cascade</literal> "
"attribute. The <literal>auto-import</literal> attribute lets us use "
"unqualified class names in the query language, by default."
msgstr ""
"这个元素包括一些可选的属性。<literal>schema</literal>和<literal>catalog</"
"literal>属性， 指明了这个映射所连接（refer）的表所在的schema和/或catalog名"
"称。 假若指定了这个属性，表名会加上所指定的schema和catalog的名字扩展为全限定"
"名。假若没有指定，表名就不会使用全限定名。 <literal>default-cascade</literal>"
"指定了未明确注明<literal>cascade</literal>属性的Java属性和 集合类Hibernate会"
"采取什么样的默认级联风格。<literal>auto-import</literal>属性默认让我们在查询"
"语言中可以使用 非全限定名的类名。"

#. Tag: programlisting
#: basic_mapping.xml:114
#, no-c-format
msgid ""
"<![CDATA[<hibernate-mapping\n"
"         schema=\"schemaName\"\n"
"         catalog=\"catalogName\"\n"
"         default-cascade=\"cascade_style\"\n"
"         default-access=\"field|property|ClassName\"\n"
"         default-lazy=\"true|false\"\n"
"         auto-import=\"true|false\"\n"
"         package=\"package.name\"\n"
" />]]>"
msgstr ""

#. Tag: para
#: basic_mapping.xml:117
#, no-c-format
msgid "<literal>schema</literal> (optional): The name of a database schema."
msgstr "<literal>schema</literal> (可选): 数据库schema的名称。"

#. Tag: para
#: basic_mapping.xml:122
#, no-c-format
msgid "<literal>catalog</literal> (optional): The name of a database catalog."
msgstr "<literal>catalog</literal> (可选): 数据库catalog的名称。"

#. Tag: para
#: basic_mapping.xml:127
#, no-c-format
msgid ""
"<literal>default-cascade</literal> (optional - defaults to <literal>none</"
"literal>): A default cascade style."
msgstr ""
"<literal>default-cascade</literal> (可选 - 默认为 <literal>none</literal>): "
"默认的级联风格。"

#. Tag: para
#: basic_mapping.xml:133
#, no-c-format