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Hibernate example source code file (query_sql.po)
This example Hibernate source code file (query_sql.po) is included in the DevDaily.com
"Java Source Code
Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.
The Hibernate query_sql.po source code
# translation of Collection_Mapping.po to
# Xi Huang <xhuang@redhat.com>, 2006.
# Xi HUANG <xhuang@redhat.com>, 2007.
msgid ""
msgstr ""
"Project-Id-Version: Collection_Mapping\n"
"Report-Msgid-Bugs-To: http://bugs.kde.org\n"
"POT-Creation-Date: 2010-07-20 21:02+0000\n"
"PO-Revision-Date: 2010-03-16 10:16+1000\n"
"Last-Translator: Xi HUANG <xhuang@redhat.com>\n"
"Language-Team: <en@li.org>\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"X-Generator: KBabel 1.11.4\n"
#. Tag: title
#: query_sql.xml:31
#, no-c-format
msgid "Native SQL"
msgstr "Native SQL 查询"
#. Tag: para
#: query_sql.xml:33
#, no-c-format
msgid ""
"You can also express queries in the native SQL dialect of your database. "
"This is useful if you want to utilize database-specific features such as "
"query hints or the <literal>CONNECT keyword in Oracle. It also "
"provides a clean migration path from a direct SQL/JDBC based application to "
"Hibernate."
msgstr ""
"你也可以使用你的数据库的 Native SQL 语言来查询数据。这对你在要使用数据库的某"
"些特性的时候（比如说在查询提示或者 Oracle 中的 <literal>CONNECT 关"
"键字），这是非常有用的。这就能够扫清你把原来直接使用 SQL/JDBC 的程序迁移到基"
"于 Hibernate 应用的道路上的障碍。 "
#. Tag: para
#: query_sql.xml:39
#, no-c-format
msgid ""
"Hibernate3 allows you to specify handwritten SQL, including stored "
"procedures, for all create, update, delete, and load operations."
msgstr ""
"Hibernate3 允许你使用手写的 sql 来完成所有的 create、update、delete 和 load "
"操作（包括存储过程） "
#. Tag: title
#: query_sql.xml:43
#, no-c-format
msgid "Using a <literal>SQLQuery"
msgstr "使用 <literal>SQLQuery"
#. Tag: para
#: query_sql.xml:45
#, no-c-format
msgid ""
"Execution of native SQL queries is controlled via the <literal>SQLQuerySession."
"createSQLQuery()</literal>. The following sections describe how to use this "
"API for querying."
msgstr ""
"对原生 SQL 查询执行的控制是通过 <literal>SQLQuery 接口进行的，通过"
"执行<literal>Session.createSQLQuery()获取这个接口。下面来描述如何使"
"用这个 API 进行查询。 "
#. Tag: title
#: query_sql.xml:51
#, no-c-format
msgid "Scalar queries"
msgstr "标量查询（Scalar queries）"
#. Tag: para
#: query_sql.xml:53
#, no-c-format
msgid "The most basic SQL query is to get a list of scalars (values)."
msgstr "最基本的 SQL 查询就是获得一个标量（数值）的列表。"
#. Tag: programlisting
#: query_sql.xml:56
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT * FROM CATS\").list();\n"
"sess.createSQLQuery(\"SELECT ID, NAME, BIRTHDATE FROM CATS\").list();"
msgstr ""
"sess.createSQLQuery(\"SELECT * FROM CATS\").list();\n"
"sess.createSQLQuery(\"SELECT ID, NAME, BIRTHDATE FROM CATS\").list();"
#. Tag: para
#: query_sql.xml:58
#, no-c-format
msgid ""
"These will return a List of Object arrays (Object[]) with scalar values for "
"each column in the CATS table. Hibernate will use ResultSetMetadata to "
"deduce the actual order and types of the returned scalar values."
msgstr ""
"它们都将返回一个 Object 数组（Object[]）组成的 List，数组每个元素都是 CATS 表"
"的一个字段值。Hibernate 会使用 ResultSetMetadata 来判定返回的标量值的实际顺序"
"和类型。 "
#. Tag: para
#: query_sql.xml:63
#, no-c-format
msgid ""
"To avoid the overhead of using <literal>ResultSetMetadata, or "
"simply to be more explicit in what is returned, one can use "
"<literal>addScalar():"
msgstr ""
"如果要避免过多的使用 <literal>ResultSetMetadata，或者只是为了更加明"
"确的指名返回值，可以使用 <literal>addScalar()： "
#. Tag: programlisting
#: query_sql.xml:67
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT * FROM CATS\")\n"
" .addScalar(\"ID\", Hibernate.LONG)\n"
" .addScalar(\"NAME\", Hibernate.STRING)\n"
" .addScalar(\"BIRTHDATE\", Hibernate.DATE)"
msgstr ""
"sess.createSQLQuery(\"SELECT * FROM CATS\")\n"
" .addScalar(\"ID\", Hibernate.LONG)\n"
" .addScalar(\"NAME\", Hibernate.STRING)\n"
" .addScalar(\"BIRTHDATE\", Hibernate.DATE)"
#. Tag: para
#: query_sql.xml:69 query_sql.xml:116 query_sql.xml:197 query_sql.xml:349
#, no-c-format
msgid "This query specified:"
msgstr "这个查询指定："
#. Tag: para
#: query_sql.xml:73 query_sql.xml:120 query_sql.xml:353
#, no-c-format
msgid "the SQL query string"
msgstr "SQL 查询字符串"
#. Tag: para
#: query_sql.xml:77
#, no-c-format
msgid "the columns and types to return"
msgstr "要返回的字段和类型"
#. Tag: para
#: query_sql.xml:81
#, no-c-format
msgid ""
"This will return Object arrays, but now it will not use "
"<literal>ResultSetMetadata but will instead explicitly get the ID, "
"NAME and BIRTHDATE column as respectively a Long, String and a Short from "
"the underlying resultset. This also means that only these three columns will "
"be returned, even though the query is using <literal>* and could "
"return more than the three listed columns."
msgstr ""
"它仍然会返回 Object 数组,但是此时不再使用 <literal>ResultSetMetdata 来"
"查询的，可能获得超过列出的这三个字段，也仅仅会返回这三个字段。 "
#. Tag: para
#: query_sql.xml:89
#, no-c-format
msgid ""
"It is possible to leave out the type information for all or some of the "
"scalars."
msgstr "对全部或者部分的标量值不设置类型信息也是可以的。"
#. Tag: programlisting
#: query_sql.xml:92
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT * FROM CATS\")\n"
" .addScalar(\"ID\", Hibernate.LONG)\n"
" .addScalar(\"NAME\")\n"
" .addScalar(\"BIRTHDATE\")"
msgstr ""
"sess.createSQLQuery(\"SELECT * FROM CATS\")\n"
" .addScalar(\"ID\", Hibernate.LONG)\n"
" .addScalar(\"NAME\")\n"
" .addScalar(\"BIRTHDATE\")"
#. Tag: para
#: query_sql.xml:94
#, no-c-format
msgid ""
"This is essentially the same query as before, but now "
"<literal>ResultSetMetaData is used to determine the type of NAME "
"and BIRTHDATE, where as the type of ID is explicitly specified."
msgstr ""
"基本上这和前面一个查询相同,只是此时使用 <literal>ResultSetMetaData "
"来决定 NAME 和 BIRTHDATE 的类型，而 ID 的类型是明确指出的。 "
#. Tag: para
#: query_sql.xml:99
#, no-c-format
msgid ""
"How the java.sql.Types returned from ResultSetMetaData is mapped to "
"Hibernate types is controlled by the Dialect. If a specific type is not "
"mapped, or does not result in the expected type, it is possible to customize "
"it via calls to <literal>registerHibernateType in the Dialect."
msgstr ""
"关于从 ResultSetMetaData 返回的 java.sql.Types 是如何映射到 Hibernate 类型，"
"是由方言（Dialect）控制的。假若某个指定的类型没有被映射，或者不是你所预期的类"
"型，你可以通过 Dialet 的 <literal>registerHibernateType 调用自行定"
"义。 "
#. Tag: title
#: query_sql.xml:107
#, no-c-format
msgid "Entity queries"
msgstr "实体查询（Entity queries）"
#. Tag: para
#: query_sql.xml:109
#, no-c-format
msgid ""
"The above queries were all about returning scalar values, basically "
"returning the \"raw\" values from the resultset. The following shows how to "
"get entity objects from a native sql query via <literal>addEntity() 让原生查询返回实体对象。"
#. Tag: programlisting
#: query_sql.xml:114
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT * FROM CATS\").addEntity(Cat.class);\n"
"sess.createSQLQuery(\"SELECT ID, NAME, BIRTHDATE FROM CATS\").addEntity(Cat."
"class);"
msgstr ""
"sess.createSQLQuery(\"SELECT * FROM CATS\").addEntity(Cat.class);\n"
"sess.createSQLQuery(\"SELECT ID, NAME, BIRTHDATE FROM CATS\").addEntity(Cat."
"class);"
#. Tag: para
#: query_sql.xml:124
#, no-c-format
msgid "the entity returned by the query"
msgstr "要返回的实体"
#. Tag: para
#: query_sql.xml:128
#, no-c-format
msgid ""
"Assuming that Cat is mapped as a class with the columns ID, NAME and "
"BIRTHDATE the above queries will both return a List where each element is a "
"Cat entity."
msgstr ""
"假设 Cat 被映射为拥有 ID，NAME 和 BIRTHDATE 三个字段的类，以上的两个查询都返"
"回一个 List，每个元素都是一个 Cat 实体。"
#. Tag: para
#: query_sql.xml:132
#, no-c-format
msgid ""
"If the entity is mapped with a <literal>many-to-one to another "
"entity it is required to also return this when performing the native query, "
"otherwise a database specific \"column not found\" error will occur. The "
"additional columns will automatically be returned when using the * notation, "
"but we prefer to be explicit as in the following example for a <literal>many-"
"to-one</literal> to a Dog:"
msgstr ""
"假若实体在映射时有一个 <literal>many-to-one 的关联指向另外一个实"
"体，在查询时必须也返回那个实体，否则会导致发生一个 \"column not found\" 的数"
"据库错误。这些附加的字段可以使用 * 标注来自动返回，但我们希望还是明确指明，看"
"下面这个具有指向 <literal>Dog 的 many-to-one 的"
"例子："
#. Tag: programlisting
#: query_sql.xml:140
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT ID, NAME, BIRTHDATE, DOG_ID FROM CATS\")."
"addEntity(Cat.class);"
msgstr ""
"sess.createSQLQuery(\"SELECT ID, NAME, BIRTHDATE, DOG_ID FROM CATS\")."
"addEntity(Cat.class);"
#. Tag: para
#: query_sql.xml:142
#, no-c-format
msgid "This will allow cat.getDog() to function properly."
msgstr "这样 cat.getDog() 就能正常运作。"
#. Tag: title
#: query_sql.xml:146
#, no-c-format
msgid "Handling associations and collections"
msgstr "处理关联和集合类（Handling associations and collections）"
#. Tag: para
#: query_sql.xml:148
#, no-c-format
msgid ""
"It is possible to eagerly join in the <literal>Dog to avoid the "
"possible extra roundtrip for initializing the proxy. This is done via the "
"<literal>addJoin() method, which allows you to join in an "
"association or collection."
msgstr ""
"通过提前抓取将 <literal>Dog 连接获得，而避免初始化 proxy 带来的额外"
"开销也是可能的。这是通过 <literal>addJoin() 方法进行的，这个方法可"
"以让你将关联或集合连接进来。"
#. Tag: programlisting
#: query_sql.xml:153
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT c.ID, NAME, BIRTHDATE, DOG_ID, D_ID, D_NAME "
"FROM CATS c, DOGS d WHERE c.DOG_ID = d.D_ID\")\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addJoin(\"cat.dog\");"
msgstr ""
"sess.createSQLQuery(\"SELECT c.ID, NAME, BIRTHDATE, DOG_ID, D_ID, D_NAME "
"FROM CATS c, DOGS d \n"
" WHERE c.DOG_ID = d.D_ID\")\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addJoin(\"cat.dog\");"
#. Tag: para
#: query_sql.xml:155
#, no-c-format
msgid ""
"In this example, the returned <literal>Cat's will have their "
"<literal>dog property fully initialized without any extra "
"roundtrip to the database. Notice that you added an alias name (\"cat\") to "
"be able to specify the target property path of the join. It is possible to "
"do the same eager joining for collections, e.g. if the <literal>CatDog instead."
msgstr ""
"上面这个例子中，返回的 <literal>Cat 对象，其 dog 有一个指向 Dog 的一"
"对多关联。 "
#. Tag: programlisting
#: query_sql.xml:163
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT ID, NAME, BIRTHDATE, D_ID, D_NAME, CAT_ID FROM "
"CATS c, DOGS d WHERE c.ID = d.CAT_ID\")\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addJoin(\"cat.dogs\");"
msgstr ""
"sess.createSQLQuery(\"SELECT ID, NAME, BIRTHDATE, D_ID, D_NAME, CAT_ID FROM "
"CATS c, DOGS d\n"
" WHERE c.ID = d.CAT_ID\")\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addJoin(\"cat.dogs\");"
#. Tag: para
#: query_sql.xml:165
#, no-c-format
msgid ""
"At this stage you are reaching the limits of what is possible with native "
"queries, without starting to enhance the sql queries to make them usable in "
"Hibernate. Problems can arise when returning multiple entities of the same "
"type or when the default alias/column names are not enough."
msgstr ""
"到此为止，我们碰到了天花板：若不对 SQL 查询进行增强，这些已经是在 Hibernate "
"中使用原生 SQL 查询所能做到的最大可能了。下面的问题即将出现：返回多个同样类型"
"的实体怎么办？或者默认的别名／字段不够又怎么办？ "
#. Tag: title
#: query_sql.xml:173
#, no-c-format
msgid "Returning multiple entities"
msgstr "返回多个实体（Returning multiple entities）"
#. Tag: para
#: query_sql.xml:175
#, no-c-format
msgid ""
"Until now, the result set column names are assumed to be the same as the "
"column names specified in the mapping document. This can be problematic for "
"SQL queries that join multiple tables, since the same column names can "
"appear in more than one table."
msgstr ""
"到目前为止,结果集字段名被假定为和映射文件中指定的的字段名是一致的。假若 SQL "
"查询连接了多个表，同一个字段名可能在多个表中出现多次，这就会造成问题。 "
#. Tag: para
#: query_sql.xml:180
#, no-c-format
msgid ""
"Column alias injection is needed in the following query (which most likely "
"will fail):"
msgstr "下面的查询中需要使用字段别名注射（这个例子本身会失败）："
#. Tag: programlisting
#: query_sql.xml:183
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT c.*, m.* FROM CATS c, CATS m WHERE c.MOTHER_ID "
"= c.ID\")\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addEntity(\"mother\", Cat.class)"
msgstr ""
"sess.createSQLQuery(\"SELECT c.*, m.* FROM CATS c, CATS m WHERE c.MOTHER_ID "
"= c.ID\")\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addEntity(\"mother\", Cat.class)"
#. Tag: para
#: query_sql.xml:185
#, no-c-format
msgid ""
"The query was intended to return two Cat instances per row: a cat and its "
"mother. The query will, however, fail because there is a conflict of names; "
"the instances are mapped to the same column names. Also, on some databases "
"the returned column aliases will most likely be on the form \"c.ID\", \"c."
"NAME\", etc. which are not equal to the columns specified in the mappings "
"(\"ID\" and \"NAME\")."
msgstr ""
"这个查询的本意是希望每行返回两个 Cat 实例，一个是 cat,另一个是它的妈妈。但是"
"因为它们的字段名被映射为相同的，而且在某些数据库中，返回的字段别名是“c.ID”，"
"\"c.NAME\" 这样的形式，而它们和在映射文件中的名字（\"ID\" 和 \"NAME\"）不匹"
"配，这就会造成失败。 "
#. Tag: para
#: query_sql.xml:192
#, no-c-format
msgid "The following form is not vulnerable to column name duplication:"
msgstr "下面的形式可以解决字段名重复："
#. Tag: programlisting
#: query_sql.xml:195
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT {cat.*}, {mother.*} FROM CATS c, CATS m WHERE "
"c.MOTHER_ID = c.ID\")\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addEntity(\"mother\", Cat.class)"
msgstr ""
"sess.createSQLQuery(\"SELECT {cat.*}, {mother.*} FROM CATS c, CATS m WHERE "
"c.MOTHER_ID = c.ID\")\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addEntity(\"mother\", Cat.class)"
#. Tag: para
#: query_sql.xml:201
#, no-c-format
msgid ""
"the SQL query string, with placeholders for Hibernate to inject column "
"aliases"
msgstr "SQL 查询语句，其中包含占位附来让 Hibernate 注射字段别名"
#. Tag: para
#: query_sql.xml:206
#, no-c-format
msgid "the entities returned by the query"
msgstr "查询返回的实体"
#. Tag: para
#: query_sql.xml:210
#, no-c-format
msgid ""
"The {cat.*} and {mother.*} notation used above is a shorthand for \"all "
"properties\". Alternatively, you can list the columns explicitly, but even "
"in this case Hibernate injects the SQL column aliases for each property. The "
"placeholder for a column alias is just the property name qualified by the "
"table alias. In the following example, you retrieve Cats and their mothers "
"from a different table (cat_log) to the one declared in the mapping "
"metadata. You can even use the property aliases in the where clause."
msgstr ""
"上面使用的 {cat.*} 和 {mother.*} 标记是作为“所有属性”的简写形式出现的。当然你"
"也可以明确地罗列出字段名，但在这个例子里面我们让 Hibernate 来为每个属性注射 "
"SQL 字段别名。字段别名的占位符是属性名加上表别名的前缀。在下面的例子中，我们"
"从另外一个表（cat_log）中通过映射元数据中的指定获取 Cat 和它的妈妈。注意，要"
"是我们愿意，我们甚至可以在 where 子句中使用属性别名。 "
#. Tag: programlisting
#: query_sql.xml:219
#, fuzzy, no-c-format
msgid ""
"String sql = \"SELECT ID as {c.id}, NAME as {c.name}, \" +\n"
" \"BIRTHDATE as {c.birthDate}, MOTHER_ID as {c.mother}, {mother.*} "
"\" +\n"
" \"FROM CAT_LOG c, CAT_LOG m WHERE {c.mother} = c.ID\";\n"
"\n"
"List loggedCats = sess.createSQLQuery(sql)\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addEntity(\"mother\", Cat.class).list()"
msgstr ""
"String sql = \"SELECT ID as {c.id}, NAME as {c.name}, \" + \n"
" \"BIRTHDATE as {c.birthDate}, MOTHER_ID as {c.mother}, {mother.*} "
"\" +\n"
" \"FROM CAT_LOG c, CAT_LOG m WHERE {c.mother} = c.ID\";\n"
"\n"
"List loggedCats = sess.createSQLQuery(sql)\n"
" .addEntity(\"cat\", Cat.class)\n"
" .addEntity(\"mother\", Cat.class).list()"
#. Tag: title
#: query_sql.xml:222
#, no-c-format
msgid "Alias and property references"
msgstr "别名和属性引用（Alias and property references）"
#. Tag: para
#: query_sql.xml:224
#, no-c-format
msgid ""
"In most cases the above alias injection is needed. For queries relating to "
"more complex mappings, like composite properties, inheritance "
"discriminators, collections etc., you can use specific aliases that allow "
"Hibernate to inject the proper aliases."
msgstr ""
"大多数情况下，都需要上面的属性注射，但在使用更加复杂的映射，比如复合属性、通"
"过标识符构造继承树，以及集合类等等情况下，也有一些特别的别名，来允许 "
"Hibernate 注入合适的别名。 "
#. Tag: para
#: query_sql.xml:229
#, no-c-format
msgid ""
"The following table shows the different ways you can use the alias "
"injection. Please note that the alias names in the result are simply "
"examples; each alias will have a unique and probably different name when "
"used."
msgstr ""
"下表列出了使用别名注射参数的不同可能性。注意：下面结果中的别名只是示例，实用"
"时每个别名需要唯一并且不同的名字。 "
#. Tag: title
#: query_sql.xml:235
#, no-c-format
msgid "Alias injection names"
msgstr "别名注射（alias injection names）"
#. Tag: entry
#: query_sql.xml:246
#, no-c-format
msgid "Description"
msgstr "描述"
#. Tag: entry
#: query_sql.xml:248
#, no-c-format
msgid "Syntax"
msgstr "语法"
#. Tag: entry
#: query_sql.xml:250
#, no-c-format
msgid "Example"
msgstr "示例"
#. Tag: entry
#: query_sql.xml:256
#, no-c-format
msgid "A simple property"
msgstr "简单属性"
#. Tag: literal
#: query_sql.xml:258
#, fuzzy, no-c-format
msgid "{[aliasname].[propertyname]"
msgstr "<literal>{[aliasname].[propertyname] "
#. Tag: literal
#: query_sql.xml:260
#, fuzzy, no-c-format
msgid "A_NAME as {item.name}"
msgstr "<literal>A_NAME as {item.name}"
#. Tag: entry
#: query_sql.xml:264
#, no-c-format
msgid "A composite property"
msgstr "复合属性"
#. Tag: literal
#: query_sql.xml:266
#, fuzzy, no-c-format
msgid "{[aliasname].[componentname].[propertyname]}"
msgstr "<literal>{[aliasname].[componentname].[propertyname]} "
#. Tag: literal
#: query_sql.xml:268
#, fuzzy, no-c-format
msgid "CURRENCY as {item.amount.currency}, VALUE as {item.amount.value}"
msgstr ""
"<literal>CURRENCY as {item.amount.currency}, VALUE as {item.amount.value}"
#. Tag: literal
#: query_sql.xml:277
#, fuzzy, no-c-format
msgid "DISC as {item.class}"
msgstr "<literal>DISC as {item.class}"
#. Tag: entry
#: query_sql.xml:281
#, no-c-format
msgid "All properties of an entity"
msgstr "实体的所有属性"
#. Tag: literal
#: query_sql.xml:283 query_sql.xml:331
#, fuzzy, no-c-format
msgid "{[aliasname].*}"
msgstr "<literal>{[aliasname].*}"
#. Tag: literal
#: query_sql.xml:285
#, no-c-format
msgid "{item.*}"
msgstr "{item.*}"
#. Tag: entry
#: query_sql.xml:289
#, no-c-format
msgid "A collection key"
msgstr "集合键（collection key）"
#. Tag: literal
#: query_sql.xml:291
#, fuzzy, no-c-format
msgid "{[aliasname].key}"
msgstr "<literal>{[aliasname].key}"
#. Tag: literal
#: query_sql.xml:293
#, fuzzy, no-c-format
msgid "ORGID as {coll.key}"
msgstr "<literal>ORGID as {coll.key}"
#. Tag: entry
#: query_sql.xml:297
#, no-c-format
msgid "The id of an collection"
msgstr "集合 id"
#. Tag: literal
#: query_sql.xml:299
#, fuzzy, no-c-format
msgid "{[aliasname].id}"
msgstr "<literal>{[aliasname].id}"
#. Tag: literal
#: query_sql.xml:301
#, fuzzy, no-c-format
msgid "EMPID as {coll.id}"
msgstr "<literal>EMPID as {coll.id}"
#. Tag: entry
#: query_sql.xml:305
#, no-c-format
msgid "The element of an collection"
msgstr "集合元素"
#. Tag: literal
#: query_sql.xml:307
#, fuzzy, no-c-format
msgid "{[aliasname].element}"
msgstr "<literal>{[aliasname].element}"
#. Tag: literal
#: query_sql.xml:309
#, fuzzy, no-c-format
msgid "XID as {coll.element}"
msgstr "<literal>XID as {coll.element}"
#. Tag: entry
#: query_sql.xml:313
#, no-c-format
msgid "property of the element in the collection"
msgstr "集合元素的属性 "
#. Tag: literal
#: query_sql.xml:315
#, fuzzy, no-c-format
msgid "{[aliasname].element.[propertyname]}"
msgstr "<literal>{[aliasname].element.[propertyname]} "
#. Tag: literal
#: query_sql.xml:317
#, fuzzy, no-c-format
msgid "NAME as {coll.element.name}"
msgstr "<literal>NAME as {coll.element.name}"
#. Tag: entry
#: query_sql.xml:321
#, no-c-format
msgid "All properties of the element in the collection"
msgstr "集合元素的所有属性"
#. Tag: literal
#: query_sql.xml:323
#, fuzzy, no-c-format
msgid "{[aliasname].element.*}"
msgstr "<literal>{[aliasname].element.*}"
#. Tag: literal
#: query_sql.xml:325
#, fuzzy, no-c-format
msgid "{coll.element.*}"
msgstr "{coll.*}"
#. Tag: entry
#: query_sql.xml:329
#, no-c-format
msgid "All properties of the collection"
msgstr "集合的所有属性 "
#. Tag: literal
#: query_sql.xml:333
#, no-c-format
msgid "{coll.*}"
msgstr "{coll.*}"
#. Tag: title
#: query_sql.xml:342
#, no-c-format
msgid "Returning non-managed entities"
msgstr "返回非受管实体（Returning non-managed entities）"
#. Tag: para
#: query_sql.xml:344
#, no-c-format
msgid ""
"It is possible to apply a ResultTransformer to native SQL queries, allowing "
"it to return non-managed entities."
msgstr ""
"可以对原生 sql 查询使用 ResultTransformer。这会返回不受 Hibernate 管理的实"
"体。 "
#. Tag: programlisting
#: query_sql.xml:347
#, fuzzy, no-c-format
msgid ""
"sess.createSQLQuery(\"SELECT NAME, BIRTHDATE FROM CATS\")\n"
" .setResultTransformer(Transformers.aliasToBean(CatDTO.class))"
msgstr ""
"sess.createSQLQuery(\"SELECT NAME, BIRTHDATE FROM CATS\")\n"
" .setResultTransformer(Transformers.aliasToBean(CatDTO.class))"
#. Tag: para
#: query_sql.xml:357
#, no-c-format
msgid "a result transformer"
msgstr "结果转换器（result transformer）"
#. Tag: para
#: query_sql.xml:361
#, no-c-format
msgid ""
"The above query will return a list of <literal>CatDTO which has "
"been instantiated and injected the values of NAME and BIRTHNAME into its "
"corresponding properties or fields."
msgstr ""
"上面的查询将会返回 <literal>CatDTO 的列表,它将被实例化并且将 NAME "
"和 BIRTHDAY 的值注射入对应的属性或者字段。"
#. Tag: title
#: query_sql.xml:367
#, no-c-format
msgid "Handling inheritance"
msgstr "处理继承（Handling inheritance）"
#. Tag: para
#: query_sql.xml:369
#, no-c-format
msgid ""
"Native SQL queries which query for entities that are mapped as part of an "
"inheritance must include all properties for the baseclass and all its "
"subclasses."
msgstr ""
"原生 SQL 查询假若其查询结果实体是继承树中的一部分，它必须包含基类和所有子类的"
"所有属性。 "
#. Tag: title
#: query_sql.xml:375
#, no-c-format
msgid "Parameters"
msgstr "参数（Parameters）"
#. Tag: para
#: query_sql.xml:377
#, no-c-format
msgid "Native SQL queries support positional as well as named parameters:"
msgstr "原生查询支持位置参数和命名参数： "
#. Tag: programlisting
#: query_sql.xml:380
#, fuzzy, no-c-format
msgid ""
"Query query = sess.createSQLQuery(\"SELECT * FROM CATS WHERE NAME like ?\")."
"addEntity(Cat.class);\n"
"List pusList = query.setString(0, \"Pus%\").list();\n"
" \n"
"query = sess.createSQLQuery(\"SELECT * FROM CATS WHERE NAME like :name\")."
"addEntity(Cat.class);\n"
"List pusList = query.setString(\"name\", \"Pus%\").list();"
msgstr ""
"Query query = sess.createSQLQuery(\"SELECT * FROM CATS WHERE NAME like ?\")."
"addEntity(Cat.class);\n"
"List pusList = query.setString(0, \"Pus%\").list();\n"
" \n"
"query = sess.createSQLQuery(\"SELECT * FROM CATS WHERE NAME like :name\")."
"addEntity(Cat.class);\n"
"List pusList = query.setString(\"name\", \"Pus%\").list();"
#. Tag: title
#: query_sql.xml:385
#, no-c-format
msgid "Named SQL queries"
msgstr "命名 SQL 查询"
#. Tag: para
#: query_sql.xml:387
#, fuzzy, no-c-format
msgid ""
"Named SQL queries can also be defined in the mapping document and called in "
"exactly the same way as a named HQL query (see <xref linkend=\"objectstate-"
"querying-executing-named\"/>). In this case, you do <emphasis>not "
"need to call <literal>addEntity()."
msgstr ""
"可以在映射文档中定义查询的名字,然后就可以象调用一个命名的 HQL 查询一样直接调"
"用命名 SQL 查询.在这种情况下，我们<emphasis>不 需要调用 "
"<literal>addEntity() 方法。 "
#. Tag: title
#: query_sql.xml:394
#, no-c-format
msgid "Named sql query using the <sql-query> maping element"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:397
#, fuzzy, no-c-format
msgid ""
"<sql-query name=\"persons\">\n"
" <return alias=\"person\" class=\"eg.Person\"/>\n"
" SELECT person.NAME AS {person.name},\n"
" person.AGE AS {person.age},\n"
" person.SEX AS {person.sex}\n"
" FROM PERSON person\n"
" WHERE person.NAME LIKE :namePattern\n"
"</sql-query>"
msgstr ""
"<sql-query name=\"persons\">\n"
" <return alias=\"person\" class=\"eg.Person\"/>\n"
" SELECT person.NAME AS {person.name},\n"
" person.AGE AS {person.age},\n"
" person.SEX AS {person.sex}\n"
" FROM PERSON person\n"
" WHERE person.NAME LIKE :namePattern\n"
"</sql-query>"
#. Tag: title
#: query_sql.xml:401
#, no-c-format
msgid "Execution of a named query"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:403
#, fuzzy, no-c-format
msgid ""
"List people = sess.getNamedQuery(\"persons\")\n"
" .setString(\"namePattern\", namePattern)\n"
" .setMaxResults(50)\n"
" .list();"
msgstr ""
"List people = sess.getNamedQuery(\"persons\")\n"
" .setString(\"namePattern\", namePattern)\n"
" .setMaxResults(50)\n"
" .list();"
#. Tag: para
#: query_sql.xml:406
#, no-c-format
msgid ""
"The <literal><return-join> element is use to join "
"associations and the <literal><load-collection> element is "
"used to define queries which initialize collections,"
msgstr ""
"<literal><return-join> 和 <load-collection> "
"element:"
msgstr ""
"一个命名查询可能会返回一个标量值。你必须使用 <literal><return-scalar> 元素"
"中，这样就可以在多个命名查询间，或者通过 <literal>setResultSetMapping()@NamedNativeQueries) in conjunction with "
"<literal>@SqlResultSetMapping (@SqlResultSetMappings@NamedQuery, "
"<classname>@NamedNativeQuery and @SqlResultSetMapping parameter is defined in "
"<literal>@NamedNativeQuery. It represents the name of a defined "
"<literal>@SqlResultSetMapping. The resultset mapping declares the "
"entities retrieved by this native query. Each field of the entity is bound "
"to an SQL alias (or column name). All fields of the entity including the "
"ones of subclasses and the foreign key columns of related entities have to "
"be present in the SQL query. Field definitions are optional provided that "
"they map to the same column name as the one declared on the class property. "
"In the example 2 entities, <literal>Night and Area element should be used for each "
"foreign key column. The <literal>@FieldResult name is composed of "
"the property name for the relationship, followed by a dot (\".\"), followed "
"by the name or the field or property of the primary key. This can be seen in "
"<xref linkend=\"example-field-result-annotation-with-associations\"/>."
msgstr ""
#. Tag: title
#: query_sql.xml:490
#, no-c-format
msgid ""
"Named SQL query using <classname>@NamedNativeQuery together with "
"<classname>@SqlResultSetMapping"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:493
#, no-c-format
msgid ""
"@NamedNativeQuery(name=\"night&area\", query=\"select night.id nid, "
"night.night_duration, \"\n"
" + \" night.night_date, area.id aid, night.area_id, area.name \"\n"
" + \"from Night night, Area area where night.area_id = area.id\", \n"
" resultSetMapping=\"joinMapping\")\n"
"@SqlResultSetMapping(name=\"joinMapping\", entities={\n"
" @EntityResult(entityClass=Night.class, fields = {\n"
" @FieldResult(name=\"id\", column=\"nid\"),\n"
" @FieldResult(name=\"duration\", column=\"night_duration\"),\n"
" @FieldResult(name=\"date\", column=\"night_date\"),\n"
" @FieldResult(name=\"area\", column=\"area_id\"),\n"
" discriminatorColumn=\"disc\"\n"
" }),\n"
" @EntityResult(entityClass=org.hibernate.test.annotations.query.Area."
"class, fields = {\n"
" @FieldResult(name=\"id\", column=\"aid\"),\n"
" @FieldResult(name=\"name\", column=\"name\")\n"
" })\n"
" }\n"
")"
msgstr ""
#. Tag: title
#: query_sql.xml:497
#, no-c-format
msgid "Implicit result set mapping"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:499
#, no-c-format
msgid ""
"@Entity\n"
"@SqlResultSetMapping(name=\"implicit\",\n"
" entities=@EntityResult(entityClass=SpaceShip.class))\n"
"@NamedNativeQuery(name=\"implicitSample\", \n"
" query=\"select * from SpaceShip\", \n"
" resultSetMapping=\"implicit\")\n"
"public class SpaceShip {\n"
" private String name;\n"
" private String model;\n"
" private double speed;\n"
"\n"
" @Id\n"
" public String getName() {\n"
" return name;\n"
" }\n"
"\n"
" public void setName(String name) {\n"
" this.name = name;\n"
" }\n"
"\n"
" @Column(name=\"model_txt\")\n"
" public String getModel() {\n"
" return model;\n"
" }\n"
"\n"
" public void setModel(String model) {\n"
" this.model = model;\n"
" }\n"
"\n"
" public double getSpeed() {\n"
" return speed;\n"
" }\n"
"\n"
" public void setSpeed(double speed) {\n"
" this.speed = speed;\n"
" }\n"
"}"
msgstr ""
#. Tag: title
#: query_sql.xml:503
#, no-c-format
msgid "Using dot notation in @FieldResult for specifying associations"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:506
#, no-c-format
msgid ""
"@Entity\n"
"@SqlResultSetMapping(name=\"compositekey\",\n"
" entities=@EntityResult(entityClass=SpaceShip.class,\n"
" fields = {\n"
" @FieldResult(name=\"name\", column = \"name\"),\n"
" @FieldResult(name=\"model\", column = \"model\"),\n"
" @FieldResult(name=\"speed\", column = \"speed\"),\n"
" @FieldResult(name=\"captain.firstname\", column = "
"\"firstn\"),\n"
" @FieldResult(name=\"captain.lastname\", column = \"lastn"
"\"),\n"
" @FieldResult(name=\"dimensions.length\", column = "
"\"length\"),\n"
" @FieldResult(name=\"dimensions.width\", column = \"width"
"\")\n"
" }),\n"
" columns = { @ColumnResult(name = \"surface\"),\n"
" @ColumnResult(name = \"volume\") } )\n"
"\n"
"@NamedNativeQuery(name=\"compositekey\",\n"
" query=\"select name, model, speed, lname as lastn, fname as firstn, "
"length, width, length * width as surface from SpaceShip\", \n"
" resultSetMapping=\"compositekey\")\n"
"} )\n"
"public class SpaceShip {\n"
" private String name;\n"
" private String model;\n"
" private double speed;\n"
" private Captain captain;\n"
" private Dimensions dimensions;\n"
"\n"
" @Id\n"
" public String getName() {\n"
" return name;\n"
" }\n"
"\n"
" public void setName(String name) {\n"
" this.name = name;\n"
" }\n"
"\n"
" @ManyToOne(fetch= FetchType.LAZY)\n"
" @JoinColumns( {\n"
" @JoinColumn(name=\"fname\", referencedColumnName = \"firstname"
"\"),\n"
" @JoinColumn(name=\"lname\", referencedColumnName = \"lastname"
"\")\n"
" } )\n"
" public Captain getCaptain() {\n"
" return captain;\n"
" }\n"
"\n"
" public void setCaptain(Captain captain) {\n"
" this.captain = captain;\n"
" }\n"
"\n"
" public String getModel() {\n"
" return model;\n"
" }\n"
"\n"
" public void setModel(String model) {\n"
" this.model = model;\n"
" }\n"
"\n"
" public double getSpeed() {\n"
" return speed;\n"
" }\n"
"\n"
" public void setSpeed(double speed) {\n"
" this.speed = speed;\n"
" }\n"
"\n"
" public Dimensions getDimensions() {\n"
" return dimensions;\n"
" }\n"
"\n"
" public void setDimensions(Dimensions dimensions) {\n"
" this.dimensions = dimensions;\n"
" }\n"
"}\n"
"\n"
"@Entity\n"
"@IdClass(Identity.class)\n"
"public class Captain implements Serializable {\n"
" private String firstname;\n"
" private String lastname;\n"
"\n"
" @Id\n"
" public String getFirstname() {\n"
" return firstname;\n"
" }\n"
"\n"
" public void setFirstname(String firstname) {\n"
" this.firstname = firstname;\n"
" }\n"
"\n"
" @Id\n"
" public String getLastname() {\n"
" return lastname;\n"
" }\n"
"\n"
" public void setLastname(String lastname) {\n"
" this.lastname = lastname;\n"
" }\n"
"}"
msgstr ""
#. Tag: para
#: query_sql.xml:510
#, no-c-format
msgid ""
"If you retrieve a single entity using the default mapping, you can specify "
"the <literal>resultClass attribute instead of "
"<literal>resultSetMapping:"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:514
#, no-c-format
msgid ""
"@NamedNativeQuery(name=\"implicitSample\", query=\"select * from SpaceShip"
"\", resultClass=SpaceShip.class)\n"
"public class SpaceShip {"
msgstr ""
#. Tag: para
#: query_sql.xml:517
#, no-c-format
msgid ""
"In some of your native queries, you'll have to return scalar values, for "
"example when building report queries. You can map them in the "
"<literal>@SqlResultsetMapping through @ColumnResult"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:527
#, no-c-format
msgid ""
"@SqlResultSetMapping(name=\"scalar\", columns=@ColumnResult(name=\"dimension"
"\"))\n"
"@NamedNativeQuery(name=\"scalar\", query=\"select length*width as dimension "
"from SpaceShip\", resultSetMapping=\"scalar\")"
msgstr ""
#. Tag: para
#: query_sql.xml:530
#, no-c-format
msgid ""
"An other query hint specific to native queries has been introduced: "
"<literal>org.hibernate.callable which can be true or false "
"depending on whether the query is a stored procedure or not."
msgstr ""
#. Tag: title
#: query_sql.xml:535
#, no-c-format
msgid "Using return-property to explicitly specify column/alias names"
msgstr "使用 return-property 来明确地指定字段／别名"
#. Tag: para
#: query_sql.xml:538
#, no-c-format
msgid ""
"You can explicitly tell Hibernate what column aliases to use with "
"<literal><return-property>, instead of using the {}"
"</literal>-syntax to let Hibernate inject its own aliases.For example:"
msgstr ""
"使用 <literal><return-property> 你可以明确的告诉 Hibernate 使"
"用哪些字段别名，这取代了使用 <literal>{}-语法 来让 Hibernate 注入它"
"自己的别名。例如："
#. Tag: programlisting
#: query_sql.xml:543
#, fuzzy, no-c-format
msgid ""
"<sql-query name=\"mySqlQuery\">\n"
" <return alias=\"person\" class=\"eg.Person\">\n"
" <return-property name=\"name\" column=\"myName\"/>\n"
" <return-property name=\"age\" column=\"myAge\"/>\n"
" <return-property name=\"sex\" column=\"mySex\"/>\n"
" </return>\n"
" SELECT person.NAME AS myName,\n"
" person.AGE AS myAge,\n"
" person.SEX AS mySex,\n"
" FROM PERSON person WHERE person.NAME LIKE :name\n"
"</sql-query>"
msgstr ""
"<sql-query name=\"mySqlQuery\">\n"
" <return alias=\"person\" class=\"eg.Person\">\n"
" <return-property name=\"name\" column=\"myName\"/>\n"
" <return-property name=\"age\" column=\"myAge\"/>\n"
" <return-property name=\"sex\" column=\"mySex\"/>\n"
" </return>\n"
" SELECT person.NAME AS myName,\n"
" person.AGE AS myAge,\n"
" person.SEX AS mySex,\n"
" FROM PERSON person WHERE person.NAME LIKE :name\n"
"</sql-query>"
#. Tag: para
#: query_sql.xml:545
#, no-c-format
msgid ""
"<literal><return-property> also works with multiple columns. "
"This solves a limitation with the <literal>{}-syntax which cannot "
"allow fine grained control of multi-column properties."
msgstr ""
"<literal><return-property> 也可用于多个字段，它解决了使用 "
"<literal>{}-语法不能细粒度控制多个字段的限制。 "
#. Tag: programlisting
#: query_sql.xml:550
#, fuzzy, no-c-format
msgid ""
"<sql-query name=\"organizationCurrentEmployments\">\n"
" <return alias=\"emp\" class=\"Employment\">\n"
" <return-property name=\"salary\">\n"
" <return-column name=\"VALUE\"/>\n"
" <return-column name=\"CURRENCY\"/>\n"
" </return-property>\n"
" <return-property name=\"endDate\" column=\"myEndDate\"/>\n"
" </return>\n"
" SELECT EMPLOYEE AS {emp.employee}, EMPLOYER AS {emp.employer},\n"
" STARTDATE AS {emp.startDate}, ENDDATE AS {emp.endDate},\n"
" REGIONCODE as {emp.regionCode}, EID AS {emp.id}, VALUE, CURRENCY\n"
" FROM EMPLOYMENT\n"
" WHERE EMPLOYER = :id AND ENDDATE IS NULL\n"
" ORDER BY STARTDATE ASC\n"
"</sql-query>"
msgstr ""
"<sql-query name=\"organizationCurrentEmployments\">\n"
" <return alias=\"emp\" class=\"Employment\">\n"
" <return-property name=\"salary\">\n"
" <return-column name=\"VALUE\"/>\n"
" <return-column name=\"CURRENCY\"/>\n"
" </return-property>\n"
" <return-property name=\"endDate\" column=\"myEndDate\"/>\n"
" </return>\n"
" SELECT EMPLOYEE AS {emp.employee}, EMPLOYER AS {emp.employer},\n"
" STARTDATE AS {emp.startDate}, ENDDATE AS {emp.endDate},\n"
" REGIONCODE as {emp.regionCode}, EID AS {emp.id}, VALUE, CURRENCY\n"
" FROM EMPLOYMENT\n"
" WHERE EMPLOYER = :id AND ENDDATE IS NULL\n"
" ORDER BY STARTDATE ASC\n"
"</sql-query>"
#. Tag: para
#: query_sql.xml:552
#, no-c-format
msgid ""
"In this example <literal><return-property> was used in "
"combination with the <literal>{}-syntax for injection. This allows "
"users to choose how they want to refer column and properties."
msgstr ""
"注意在这个例子中，我们使用了 <literal><return-property> 结合 "
"<literal>{} 的注入语法。允许用户来选择如何引用字段以及属性。 "
#. Tag: para
#: query_sql.xml:557
#, no-c-format
msgid ""
"If your mapping has a discriminator you must use <literal><return-"
"discriminator></literal> to specify the discriminator column."
msgstr ""
"如果你映射一个识别器（discriminator），你必须使用 <literal><return-"
"discriminator></literal> 来指定识别器字段。"
#. Tag: title
#: query_sql.xml:563
#, no-c-format
msgid "Using stored procedures for querying"
msgstr "使用存储过程来查询"
#. Tag: para
#: query_sql.xml:565
#, no-c-format
msgid ""
"Hibernate3 provides support for queries via stored procedures and functions. "
"Most of the following documentation is equivalent for both. The stored "
"procedure/function must return a resultset as the first out-parameter to be "
"able to work with Hibernate. An example of such a stored function in Oracle "
"9 and higher is as follows:"
msgstr ""
"Hibernate 3 引入了对存储过程查询（stored procedure）和函数（function）的支"
"持。以下的说明中，这二者一般都适用。存储过程／函数必须返回一个结果集，作为 "
"Hibernate 能够使用的第一个外部参数。下面是一个 Oracle9 和更高版本的存储过程例"
"子。 "
#. Tag: programlisting
#: query_sql.xml:571
#, fuzzy, no-c-format
msgid ""
"CREATE OR REPLACE FUNCTION selectAllEmployments\n"
" RETURN SYS_REFCURSOR\n"
"AS\n"
" st_cursor SYS_REFCURSOR;\n"
"BEGIN\n"
" OPEN st_cursor FOR\n"
" SELECT EMPLOYEE, EMPLOYER,\n"
" STARTDATE, ENDDATE,\n"
" REGIONCODE, EID, VALUE, CURRENCY\n"
" FROM EMPLOYMENT;\n"
" RETURN st_cursor;\n"
" END;"
msgstr ""
"CREATE OR REPLACE FUNCTION selectAllEmployments\n"
" RETURN SYS_REFCURSOR\n"
"AS\n"
" st_cursor SYS_REFCURSOR;\n"
"BEGIN\n"
" OPEN st_cursor FOR\n"
" SELECT EMPLOYEE, EMPLOYER,\n"
" STARTDATE, ENDDATE,\n"
" REGIONCODE, EID, VALUE, CURRENCY\n"
" FROM EMPLOYMENT;\n"
" RETURN st_cursor;\n"
" END;"
#. Tag: para
#: query_sql.xml:573
#, no-c-format
msgid "To use this query in Hibernate you need to map it via a named query."
msgstr "在 Hibernate 里要要使用这个查询，你需要通过命名查询来映射它。"
#. Tag: programlisting
#: query_sql.xml:576
#, fuzzy, no-c-format
msgid ""
"<sql-query name=\"selectAllEmployees_SP\" callable=\"true\">\n"
" <return alias=\"emp\" class=\"Employment\">\n"
" <return-property name=\"employee\" column=\"EMPLOYEE\"/>\n"
" <return-property name=\"employer\" column=\"EMPLOYER\"/>\n"
" <return-property name=\"startDate\" column=\"STARTDATE\"/>\n"
" <return-property name=\"endDate\" column=\"ENDDATE\"/>\n"
" <return-property name=\"regionCode\" column=\"REGIONCODE\"/>\n"
" <return-property name=\"id\" column=\"EID\"/>\n"
" <return-property name=\"salary\">\n"
" <return-column name=\"VALUE\"/>\n"
" <return-column name=\"CURRENCY\"/>\n"
" </return-property>\n"
" </return>\n"
" { ? = call selectAllEmployments() }\n"
"</sql-query>"
msgstr ""
"<sql-query name=\"selectAllEmployees_SP\" callable=\"true\">\n"
" <return alias=\"emp\" class=\"Employment\">\n"
" <return-property name=\"employee\" column=\"EMPLOYEE\"/>\n"
" <return-property name=\"employer\" column=\"EMPLOYER\"/>\n"
" <return-property name=\"startDate\" column=\"STARTDATE\"/>\n"
" <return-property name=\"endDate\" column=\"ENDDATE\"/>\n"
" <return-property name=\"regionCode\" column=\"REGIONCODE\"/>\n"
" <return-property name=\"id\" column=\"EID\"/>\n"
" <return-property name=\"salary\">\n"
" <return-column name=\"VALUE\"/>\n"
" <return-column name=\"CURRENCY\"/>\n"
" </return-property>\n"
" </return>\n"
" { ? = call selectAllEmployments() }\n"
"</sql-query>"
#. Tag: para
#: query_sql.xml:578
#, no-c-format
msgid ""
"Stored procedures currently only return scalars and entities. <literal><"
"return-join></literal> and <load-collection> are "
"not supported."
msgstr ""
"注意存储过程当前仅仅返回标量和实体现在。不支持 <literal><return-join><load-collection>。 "
#. Tag: title
#: query_sql.xml:583
#, no-c-format
msgid "Rules/limitations for using stored procedures"
msgstr "使用存储过程的规则和限制"
#. Tag: para
#: query_sql.xml:585
#, no-c-format
msgid ""
"You cannot use stored procedures with Hibernate unless you follow some "
"procedure/function rules. If they do not follow those rules they are not "
"usable with Hibernate. If you still want to use these procedures you have to "
"execute them via <literal>session.connection(). The rules are "
"different for each database, since database vendors have different stored "
"procedure semantics/syntax."
msgstr ""
"为了在 Hibernate 中使用存储过程，你必须遵循一些规则。不遵循这些规则的存储过程"
"将不可用。如果你仍然想使用他们，你必须通过 <literal>session.connection(){ ? = call procedureName(<"
"parameters>}</literal>. Native call syntax is not supported."
msgstr ""
"建议采用的调用方式是标准 SQL92: <literal>{ ? = call functionName(<"
"parameters>) }</literal> 或者 { ? = call procedureName(<"
"parameters>) }</literal>。原生调用语法不被支持。 "
#. Tag: para
#: query_sql.xml:601
#, no-c-format
msgid "For Oracle the following rules apply:"
msgstr "对于 Oracle 有如下规则："
#. Tag: para
#: query_sql.xml:605
#, no-c-format
msgid ""
"A function must return a result set. The first parameter of a procedure must "
"be an <literal>OUT that returns a result set. This is done by "
"using a <literal>SYS_REFCURSOR type in Oracle 9 or 10. In Oracle "
"you need to define a <literal>REF CURSOR type. See Oracle "
"literature for further information."
msgstr ""
"函数必须返回一个结果集。存储过程的第一个参数必须是 <literal>OUT，它"
"返回一个结果集。这是通过 Oracle 9 或 10 的 <literal>SYS_REFCURSOR "
"类型来完成的。在 Oracle 中你需要定义一个 <literal>REF CURSOR 类型，"
"参见 Oracle 的手册。 "
#. Tag: para
#: query_sql.xml:614
#, no-c-format
msgid "For Sybase or MS SQL server the following rules apply:"
msgstr "对于 Sybase 或者 MS SQL server 有如下规则："
#. Tag: para
#: query_sql.xml:618
#, no-c-format
msgid ""
"The procedure must return a result set. Note that since these servers can "
"return multiple result sets and update counts, Hibernate will iterate the "
"results and take the first result that is a result set as its return value. "
"Everything else will be discarded."
msgstr ""
"存储过程必须返回一个结果集。注意这些 servers 可能返回多个结果集以及更新的数"
"目。Hibernate 将取出第一条结果集作为它的返回值，其他将被丢弃。 "
#. Tag: para
#: query_sql.xml:626
#, no-c-format
msgid ""
"If you can enable <literal>SET NOCOUNT ON in your procedure it "
"will probably be more efficient, but this is not a requirement."
msgstr ""
"如果你能够在存储过程里设定 <literal>SET NOCOUNT ON，这可能会效率更"
"高，但这不是必需的。"
#. Tag: title
#: query_sql.xml:636
#, no-c-format
msgid "Custom SQL for create, update and delete"
msgstr "定制 SQL 用来 create，update 和 delete"
#. Tag: para
#: query_sql.xml:638
#, fuzzy, no-c-format
msgid ""
"Hibernate3 can use custom SQL for create, update, and delete operations. The "
"SQL can be overridden at the statement level or inidividual column level. "
"This section describes statement overrides. For columns, see <xref linkend="
"\"mapping-column-read-and-write\"/>. <xref linkend=\"example-custom-crdu-via-"
"annotations\"/> shows how to define custom SQL operatons using annotations."
msgstr ""
"Hibernate3 可以自定义 create、update 和 delete 操作。SQL 可以在语句或单个字段"
"级别进行覆盖。本节描述了语句覆盖。对于字段覆盖，请参考 <xref linkend="
"\"mapping-column-read-and-write\" />。"
#. Tag: title
#: query_sql.xml:646
#, no-c-format
msgid "Custom CRUD via annotations"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:648
#, no-c-format
msgid ""
"@Entity\n"
"@Table(name=\"CHAOS\")\n"
"@SQLInsert( sql=\"INSERT INTO CHAOS(size, name, nickname, id) VALUES(?,upper"
"(?),?,?)\")\n"
"@SQLUpdate( sql=\"UPDATE CHAOS SET size = ?, name = upper(?), nickname = ? "
"WHERE id = ?\")\n"
"@SQLDelete( sql=\"DELETE CHAOS WHERE id = ?\")\n"
"@SQLDeleteAll( sql=\"DELETE CHAOS\")\n"
"@Loader(namedQuery = \"chaos\")\n"
"@NamedNativeQuery(name=\"chaos\", query=\"select id, size, name, lower"
"( nickname ) as nickname from CHAOS where id= ?\", resultClass = Chaos."
"class)\n"
"public class Chaos {\n"
" @Id\n"
" private Long id;\n"
" private Long size;\n"
" private String name;\n"
" private String nickname;"
msgstr ""
#. Tag: para
#: query_sql.xml:651
#, no-c-format
msgid ""
"<literal>@SQLInsert, @SQLUpdate, "
"<literal>@SQLDelete, @SQLDeleteAll respectively "
"override the INSERT, UPDATE, DELETE, and DELETE all statement. The same can "
"be achieved using Hibernate mapping files and the <literal><sql-insert>"
"</literal>, <sql-update> and <sql-"
"delete></literal> nodes. This can be seen in attribute to true. In "
"annotations as well as in xml."
msgstr ""
#. Tag: para
#: query_sql.xml:670
#, no-c-format
msgid ""
"To check that the execution happens correctly, Hibernate allows you to "
"define one of those three strategies:"
msgstr ""
#. Tag: para
#: query_sql.xml:675
#, no-c-format
msgid ""
"none: no check is performed: the store procedure is expected to fail upon "
"issues"
msgstr ""
#. Tag: para
#: query_sql.xml:680
#, no-c-format
msgid "count: use of rowcount to check that the update is successful"
msgstr ""
#. Tag: para
#: query_sql.xml:685
#, no-c-format
msgid ""
"param: like COUNT but using an output parameter rather that the standard "
"mechanism"
msgstr ""
#. Tag: para
#: query_sql.xml:690
#, no-c-format
msgid ""
"To define the result check style, use the <literal>check parameter "
"which is again available in annoations as well as in xml."
msgstr ""
#. Tag: para
#: query_sql.xml:693
#, no-c-format
msgid ""
"You can use the exact same set of annotations respectively xml nodes to "
"override the collection related statements -see <xref linkend=\"example-"
"overriding-sql-collections-annotations\"/>."
msgstr ""
#. Tag: title
#: query_sql.xml:698
#, no-c-format
msgid "Overriding SQL statements for collections using annotations"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:701
#, no-c-format
msgid ""
"@OneToMany\n"
"@JoinColumn(name=\"chaos_fk\")\n"
"@SQLInsert( sql=\"UPDATE CASIMIR_PARTICULE SET chaos_fk = ? where id = ?\")\n"
"@SQLDelete( sql=\"UPDATE CASIMIR_PARTICULE SET chaos_fk = null where id = ?"
"\")\n"
"private Set<CasimirParticle> particles = new HashSet<"
"CasimirParticle>();"
msgstr ""
#. Tag: para
#: query_sql.xml:705
#, fuzzy, no-c-format
msgid ""
"The parameter order is important and is defined by the order Hibernate "
"handles properties. You can see the expected order by enabling debug logging "
"for the <literal>org.hibernate.persister.entity level. With this "
"level enabled Hibernate will print out the static SQL that is used to "
"create, update, delete etc. entities. (To see the expected sequence, "
"remember to not include your custom SQL through annotations or mapping files "
"as that will override the Hibernate generated static sql)"
msgstr ""
"你能够通过设定日志调试级别为 <literal>org.hiberante.persister.entity and either (or all) "
"attributes <literal>sqlInsert, sqlUpdate, "
"<literal>sqlDelete:"
msgstr ""
#. Tag: title
#: query_sql.xml:721
#, no-c-format
msgid "Overriding SQL statements for secondary tables"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:723
#, no-c-format
msgid ""
"@Entity\n"
"@SecondaryTables({\n"
" @SecondaryTable(name = \"`Cat nbr1`\"),\n"
" @SecondaryTable(name = \"Cat2\"})\n"
"@org.hibernate.annotations.Tables( {\n"
" @Table(appliesTo = \"Cat\", comment = \"My cat table\" ),\n"
" @Table(appliesTo = \"Cat2\", foreignKey = @ForeignKey(name=\"FK_CAT2_CAT"
"\"), fetch = FetchMode.SELECT,\n"
" sqlInsert=@SQLInsert(sql=\"insert into Cat2(storyPart2, id) values"
"(upper(?), ?)\") )\n"
"} )\n"
"public class Cat implements Serializable {"
msgstr ""
#. Tag: para
#: query_sql.xml:726
#, no-c-format
msgid ""
"The previous example also shows that you can give a comment to a given table "
"(primary or secondary): This comment will be used for DDL generation."
msgstr ""
#. Tag: para
#: query_sql.xml:731
#, fuzzy, no-c-format
msgid ""
"The SQL is directly executed in your database, so you can use any dialect "
"you like. This will, however, reduce the portability of your mapping if you "
"use database specific SQL."
msgstr ""
"这些 SQL 直接在你的数据库里执行，所以你可以自由的使用你喜欢的任意语法。但如果"
"你使用数据库特定的语法，这当然会降低你映射的可移植性。 "
#. Tag: para
#: query_sql.xml:736
#, fuzzy, no-c-format
msgid ""
"Last but not least, stored procedures are in most cases required to return "
"the number of rows inserted, updated and deleted. Hibernate always registers "
"the first statement parameter as a numeric output parameter for the CUD "
"operations:"
msgstr ""
"在大多数情况下（最好这么做），存储过程需要返回插入／更新／删除的行数，因为 "
"Hibernate 对语句的成功执行有些运行时的检查。Hibernate 常会把进行 CUD 操作的语"
"句的第一个参数注册为一个数值型输出参数。 "
#. Tag: title
#: query_sql.xml:742
#, no-c-format
msgid "Stored procedures and their return value"
msgstr ""
#. Tag: programlisting
#: query_sql.xml:744
#, fuzzy, no-c-format
msgid ""
"CREATE OR REPLACE FUNCTION updatePerson (uid IN NUMBER, uname IN VARCHAR2)\n"
" RETURN NUMBER IS\n"
"BEGIN\n"
"\n"
" update PERSON\n"
" set\n"
" NAME = uname,\n"
" where\n"
" ID = uid;\n"
"\n"
" return SQL%ROWCOUNT;\n"
"\n"
"END updatePerson;"
msgstr ""
"CREATE OR REPLACE FUNCTION updatePerson (uid IN NUMBER, uname IN VARCHAR2)\n"
" RETURN NUMBER IS\n"
"BEGIN\n"
"\n"
" update PERSON\n"
" set\n"
" NAME = uname,\n"
" where\n"
" ID = uid;\n"
"\n"
" return SQL%ROWCOUNT;\n"
"\n"
"END updatePerson;"
#. Tag: title
#: query_sql.xml:749
#, no-c-format
msgid "Custom SQL for loading"
msgstr "定制装载 SQL"
#. Tag: para
#: query_sql.xml:751
#, fuzzy, no-c-format
msgid ""
"You can also declare your own SQL (or HQL) queries for entity loading. As "
"with inserts, updates, and deletes, this can be done at the individual "
"column level as described in <xref linkend=\"mapping-column-read-and-write\"/"
"> or at the statement level. Here is an example of a statement level "
"override:"
msgstr ""
"你也可以为实体加载声明自己的 SQL（或 HQL）。如 <xref linkend=\"mapping-"
"column-read-and-write\" /> 所描述的，inserts、updates 和 deletes 可以在字段级"
"别或语句级别来完成。下面是一个语句覆盖的例子："
#. Tag: programlisting
#: query_sql.xml:757
#, fuzzy, no-c-format
msgid ""
"<sql-query name=\"person\">\n"
" <return alias=\"pers\" class=\"Person\" lock-mode=\"upgrade\"/>\n"
" SELECT NAME AS {pers.name}, ID AS {pers.id}\n"
" FROM PERSON\n"
" WHERE ID=?\n"
" FOR UPDATE\n"
"</sql-query>"
msgstr ""
"<sql-query name=\"person\">\n"
" <return alias=\"pers\" class=\"Person\" lock-mode=\"upgrade\"/>\n"
" SELECT NAME AS {pers.name}, ID AS {pers.id}\n"
" FROM PERSON\n"
" WHERE ID=?\n"
" FOR UPDATE\n"
"</sql-query>"
#. Tag: para
#: query_sql.xml:759
#, no-c-format
msgid ""
"This is just a named query declaration, as discussed earlier. You can "
"reference this named query in a class mapping:"
msgstr ""
"这只是一个前面讨论过的命名查询声明，你可以在类映射里引用这个命名查询。 "
#. Tag: programlisting
#: query_sql.xml:762
#, fuzzy, no-c-format
msgid ""
"<class name=\"Person\">\n"
" <id name=\"id\">\n"
" <generator class=\"increment\"/>\n"
" </id>\n"
" <property name=\"name\" not-null=\"true\"/>\n"
" <loader query-ref=\"person\"/>\n"
"</class>"
msgstr ""
"<class name=\"Person\">\n"
" <id name=\"id\">\n"
" <generator class=\"increment\"/>\n"
" </id>\n"
" <property name=\"name\" not-null=\"true\"/>\n"
" <loader query-ref=\"person\"/>\n"
"</class>"
#. Tag: para
#: query_sql.xml:764
#, no-c-format
msgid "This even works with stored procedures."
msgstr "这也可以用于存储过程"
#. Tag: para
#: query_sql.xml:766
#, no-c-format
msgid "You can even define a query for collection loading:"
msgstr "你甚至可以定一个用于集合装载的查询： "
#. Tag: programlisting
#: query_sql.xml:768
#, fuzzy, no-c-format
msgid ""
"<set name=\"employments\" inverse=\"true\">\n"
" <key/>\n"
" <one-to-many class=\"Employment\"/>\n"
" <loader query-ref=\"employments\"/>\n"
"</set>"
msgstr ""
"<set name=\"employments\" inverse=\"true\">\n"
" <key/>\n"
" <one-to-many class=\"Employment\"/>\n"
" <loader query-ref=\"employments\"/>\n"
"</set>"
#. Tag: programlisting
#: query_sql.xml:770
#, fuzzy, no-c-format
msgid ""
"<sql-query name=\"employments\">\n"
" <load-collection alias=\"emp\" role=\"Person.employments\"/>\n"
" SELECT {emp.*}\n"
" FROM EMPLOYMENT emp\n"
" WHERE EMPLOYER = :id\n"
" ORDER BY STARTDATE ASC, EMPLOYEE ASC\n"
"</sql-query>"
msgstr ""
"<sql-query name=\"employments\">\n"
" <load-collection alias=\"emp\" role=\"Person.employments\"/>\n"
" SELECT {emp.*}\n"
" FROM EMPLOYMENT emp\n"
" WHERE EMPLOYER = :id\n"
" ORDER BY STARTDATE ASC, EMPLOYEE ASC\n"
"</sql-query>"
#. Tag: para
#: query_sql.xml:772
#, no-c-format
msgid ""
"You can also define an entity loader that loads a collection by join "
"fetching:"
msgstr "你甚至还可以定义一个实体装载器，它通过连接抓取装载一个集合： "
#. Tag: programlisting
#: query_sql.xml:775
#, fuzzy, no-c-format
msgid ""
"<sql-query name=\"person\">\n"
" <return alias=\"pers\" class=\"Person\"/>\n"
" <return-join alias=\"emp\" property=\"pers.employments\"/>\n"
" SELECT NAME AS {pers.*}, {emp.*}\n"
" FROM PERSON pers\n"
" LEFT OUTER JOIN EMPLOYMENT emp\n"
" ON pers.ID = emp.PERSON_ID\n"
" WHERE ID=?\n"
"</sql-query>"
msgstr ""
"<sql-query name=\"person\">\n"
" <return alias=\"pers\" class=\"Person\"/>\n"
" <return-join alias=\"emp\" property=\"pers.employments\"/>\n"
" SELECT NAME AS {pers.*}, {emp.*}\n"
" FROM PERSON pers\n"
" LEFT OUTER JOIN EMPLOYMENT emp\n"
" ON pers.ID = emp.PERSON_ID\n"
" WHERE ID=?\n"
"</sql-query>"
#. Tag: para
#: query_sql.xml:777
#, no-c-format
msgid ""
"The annotation equivalent <literal><loader> is the @Loader "
"annotation as seen in <xref linkend=\"example-custom-crdu-via-annotations\"/"
">."
msgstr ""
#~ msgid "<literal>A_NAME as {item.name}"
#~ msgstr "<literal>A_NAME as {item.name}"
#~ msgid "<literal>{[aliasname].class}"
#~ msgstr "<literal>{[aliasname].class}"
#~ msgid "<literal>DISC as {item.class}"
#~ msgstr "<literal>DISC as {item.class}"
#~ msgid "<literal>{[aliasname].*}"
#~ msgstr "<literal>{[aliasname].*}"
#~ msgid "<literal>{item.*}"
#~ msgstr "<literal>{item.*}"
#~ msgid "<literal>{[aliasname].key}"
#~ msgstr "<literal>{[aliasname].key}"
#~ msgid "<literal>ORGID as {coll.key}"
#~ msgstr "<literal>ORGID as {coll.key}"
#~ msgid "<literal>{[aliasname].id}"
#~ msgstr "<literal>{[aliasname].id}"
#~ msgid "<literal>EMPID as {coll.id}"
#~ msgstr "<literal>EMPID as {coll.id}"
#~ msgid "<literal>{[aliasname].element}"
#~ msgstr "<literal>{[aliasname].element}"
#~ msgid "<literal>XID as {coll.element}"
#~ msgstr "<literal>XID as {coll.element}"
#~ msgid "<literal>NAME as {coll.element.name}"
#~ msgstr "<literal>NAME as {coll.element.name}"
#~ msgid "<literal>{[aliasname].element.*}"
#~ msgstr "<literal>{[aliasname].element.*}"
#~ msgid "<literal>{coll.element.*}"
#~ msgstr "<literal>{coll.element.*}"
#~ msgid "<literal>{coll.*}"
#~ msgstr "<literal>{coll.*}"
#~ msgid ""
#~ "The class and collection persisters in Hibernate already contain a set of "
#~ "configuration time generated strings (insertsql, deletesql, updatesql "
#~ "etc.). The mapping tags <literal><sql-insert>, "
#~ "<literal><sql-delete>, and <sql-update><sql-delete> 和 "
#~ "<literal><sql-update> 重载了这些语句。 "
#~ msgid ""
#~ "Stored procedures are supported if the <literal>callable "
#~ "attribute is set:"
#~ msgstr "如果设定 <literal>callable，则能够支持存储过程了。"
#~ msgid ""
#~ "The order of the positional parameters is vital, as they must be in the "
#~ "same sequence as Hibernate expects them."
#~ msgstr ""
#~ "参数的位置顺序是非常重要的，他们必须和 Hibernate 所期待的顺序相同。 "
#~ msgid ""
#~ "You can also declare your own SQL (or HQL) queries for entity loading:"
#~ msgstr "你可能需要声明你自己的 SQL（或 HQL）来装载实体："
#, fuzzy
#~ msgid ""
#~ "<
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