collection_mapping.po

hibernate 开源框架的代码 jar包希望大家能喜欢

msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: http://bugs.kde.org\n"
"POT-Creation-Date: 2007-10-25 07:47+0000\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <[e-mail]>\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"

#. Tag: title
#: collection_mapping.xml:5
#, no-c-format
msgid "Collection Mapping"
msgstr "Mapeamento de Coleções"

#. Tag: title
#: collection_mapping.xml:8
#, no-c-format
msgid "Persistent collections"
msgstr "Persistent collections"

#. Tag: para
#: collection_mapping.xml:10
#, no-c-format
msgid ""
"Hibernate requires that persistent collection-valued fields be declared as "
"an interface type, for example:"
msgstr ""
"Hibernate requires that persistent collection-valued fields be declared as "
"an interface type, for example:"

#. Tag: programlisting
#: collection_mapping.xml:15
#, no-c-format
msgid ""
"<![CDATA[public class Product {\n"
"    private String serialNumber;\n"
"    private Set parts = new HashSet();\n"
"    \n"
"    public Set getParts() { return parts; }\n"
"    void setParts(Set parts) { this.parts = parts; }\n"
"    public String getSerialNumber() { return serialNumber; }\n"
"    void setSerialNumber(String sn) { serialNumber = sn; }\n"
"}]]>"
msgstr ""

#. Tag: para
#: collection_mapping.xml:17
#, no-c-format
msgid ""
"The actual interface might be <literal>java.util.Set</literal>, "
"<literal>java.util.Collection</literal>, <literal>java.util.List</literal>, "
"<literal>java.util.Map</literal>, <literal>java.util.SortedSet</literal>, "
"<literal>java.util.SortedMap</literal> or ... anything you like! (Where "
"\"anything you like\" means you will have to write an implementation of "
"<literal>org.hibernate.usertype.UserCollectionType</literal>.)"
msgstr ""
"The actual interface might be <literal>java.util.Set</literal>, "
"<literal>java.util.Collection</literal>, <literal>java.util.List</literal>, "
"<literal>java.util.Map</literal>, <literal>java.util.SortedSet</literal>, "
"<literal>java.util.SortedMap</literal> or ... anything you like! (Where "
"\"anything you like\" means you will have to write an implementation of "
"<literal>org.hibernate.usertype.UserCollectionType</literal>.)"

#. Tag: para
#: collection_mapping.xml:26
#, no-c-format
msgid ""
"Notice how we initialized the instance variable with an instance of "
"<literal>HashSet</literal>. This is the best way to initialize collection "
"valued properties of newly instantiated (non-persistent) instances. When you "
"make the instance persistent - by calling <literal>persist()</literal>, for "
"example - Hibernate will actually replace the <literal>HashSet</literal> "
"with an instance of Hibernate's own implementation of <literal>Set</"
"literal>. Watch out for errors like this:"
msgstr ""
"Notice how we initialized the instance variable with an instance of "
"<literal>HashSet</literal>. This is the best way to initialize collection "
"valued properties of newly instantiated (non-persistent) instances. When you "
"make the instance persistent - by calling <literal>persist()</literal>, for "
"example - Hibernate will actually replace the <literal>HashSet</literal> "
"with an instance of Hibernate's own implementation of <literal>Set</"
"literal>. Watch out for errors like this:"

#. Tag: programlisting
#: collection_mapping.xml:36
#, no-c-format
msgid ""
"<![CDATA[Cat cat = new DomesticCat();\n"
"Cat kitten = new DomesticCat();\n"
"....\n"
"Set kittens = new HashSet();\n"
"kittens.add(kitten);\n"
"cat.setKittens(kittens);\n"
"session.persist(cat);\n"
"kittens = cat.getKittens(); // Okay, kittens collection is a Set\n"
"(HashSet) cat.getKittens(); // Error!]]>"
msgstr ""

#. Tag: para
#: collection_mapping.xml:38
#, no-c-format
msgid ""
"The persistent collections injected by Hibernate behave like "
"<literal>HashMap</literal>, <literal>HashSet</literal>, <literal>TreeMap</"
"literal>, <literal>TreeSet</literal> or <literal>ArrayList</literal>, "
"depending upon the interface type."
msgstr ""
"The persistent collections injected by Hibernate behave like "
"<literal>HashMap</literal>, <literal>HashSet</literal>, <literal>TreeMap</"
"literal>, <literal>TreeSet</literal> or <literal>ArrayList</literal>, "
"depending upon the interface type."

#. Tag: para
#: collection_mapping.xml:45
#, no-c-format
msgid ""
"Collections instances have the usual behavior of value types. They are "
"automatically persisted when referenced by a persistent object and "
"automatically deleted when unreferenced. If a collection is passed from one "
"persistent object to another, its elements might be moved from one table to "
"another. Two entities may not share a reference to the same collection "
"instance. Due to the underlying relational model, collection-valued "
"properties do not support null value semantics; Hibernate does not "
"distinguish between a null collection reference and an empty collection."
msgstr ""
"Collections instances have the usual behavior of value types. They are "
"automatically persisted when referenced by a persistent object and "
"automatically deleted when unreferenced. If a collection is passed from one "
"persistent object to another, its elements might be moved from one table to "
"another. Two entities may not share a reference to the same collection "
"instance. Due to the underlying relational model, collection-valued "
"properties do not support null value semantics; Hibernate does not "
"distinguish between a null collection reference and an empty collection."

#. Tag: para
#: collection_mapping.xml:56
#, no-c-format
msgid ""
"You shouldn't have to worry much about any of this. Use persistent "
"collections the same way you use ordinary Java collections. Just make sure "
"you understand the semantics of bidirectional associations (discussed later)."
msgstr ""
"You shouldn't have to worry much about any of this. Use persistent "
"collections the same way you use ordinary Java collections. Just make sure "
"you understand the semantics of bidirectional associations (discussed later)."

#. Tag: title
#: collection_mapping.xml:65
#, no-c-format
msgid "Collection mappings"
msgstr "Collection mappings"

#. Tag: para
#: collection_mapping.xml:67
#, no-c-format
msgid ""
"The Hibernate mapping element used for mapping a collection depends upon the "
"type of the interface. For example, a <literal>&lt;set&gt;</literal> element "
"is used for mapping properties of type <literal>Set</literal>."
msgstr ""
"The Hibernate mapping element used for mapping a collection depends upon the "
"type of the interface. For example, a <literal>&lt;set&gt;</literal> element "
"is used for mapping properties of type <literal>Set</literal>."

#. Tag: programlisting
#: collection_mapping.xml:73
#, no-c-format
msgid ""
"<![CDATA[<class name=\"Product\">\n"
"    <id name=\"serialNumber\" column=\"productSerialNumber\"/>\n"
"    <set name=\"parts\">\n"
"        <key column=\"productSerialNumber\" not-null=\"true\"/>\n"
"        <one-to-many class=\"Part\"/>\n"
"    </set>\n"
"</class>]]>"
msgstr ""

#. Tag: para
#: collection_mapping.xml:75
#, no-c-format
msgid ""
"Apart from <literal>&lt;set&gt;</literal>, there is also <literal>&lt;"
"list&gt;</literal>, <literal>&lt;map&gt;</literal>, <literal>&lt;bag&gt;</"
"literal>, <literal>&lt;array&gt;</literal> and <literal>&lt;primitive-"
"array&gt;</literal> mapping elements. The <literal>&lt;map&gt;</literal> "
"element is representative:"
msgstr ""
"Apart from <literal>&lt;set&gt;</literal>, there is also <literal>&lt;"
"list&gt;</literal>, <literal>&lt;map&gt;</literal>, <literal>&lt;bag&gt;</"
"literal>, <literal>&lt;array&gt;</literal> and <literal>&lt;primitive-"
"array&gt;</literal> mapping elements. The <literal>&lt;map&gt;</literal> "
"element is representative:"

#. Tag: programlisting
#: collection_mapping.xml:100
#, no-c-format
msgid ""
"<![CDATA[<map\n"
"    name=\"propertyName\"\n"
"    table=\"table_name\"\n"
"    schema=\"schema_name\"\n"
"    lazy=\"true|extra|false\"\n"
"    inverse=\"true|false\"\n"
"    cascade=\"all|none|save-update|delete|all-delete-orphan|delete-orphan\"\n"
"    sort=\"unsorted|natural|comparatorClass\"\n"
"    order-by=\"column_name asc|desc\"\n"
"    where=\"arbitrary sql where condition\"\n"
"    fetch=\"join|select|subselect\"\n"
"    batch-size=\"N\"\n"
"    access=\"field|property|ClassName\"\n"
"    optimistic-lock=\"true|false\"\n"
"    mutable=\"true|false\"\n"
"    node=\"element-name|.\"\n"
"    embed-xml=\"true|false\"\n"
">\n"
"\n"
"    <key .... />\n"
"    <map-key .... />\n"
"    <element .... />\n"
"</map>]]>"
msgstr ""

#. Tag: para
#: collection_mapping.xml:103
#, no-c-format
msgid "<literal>name</literal> the collection property name"
msgstr "<literal>name</literal> the collection property name"

#. Tag: para
#: collection_mapping.xml:108
#, no-c-format
msgid ""
"<literal>table</literal> (optional - defaults to property name) the name of "
"the collection table (not used for one-to-many associations)"
msgstr ""
"<literal>table</literal> (optional - defaults to property name) the name of "
"the collection table (not used for one-to-many associations)"

#. Tag: para
#: collection_mapping.xml:114
#, no-c-format
msgid ""
"<literal>schema</literal> (optional) the name of a table schema to override "
"the schema declared on the root element"
msgstr ""
"<literal>schema</literal> (optional) the name of a table schema to override "
"the schema declared on the root element"

#. Tag: para
#: collection_mapping.xml:120
#, no-c-format
msgid ""
"<literal>lazy</literal> (optional - defaults to <literal>true</literal>) may "
"be used to disable lazy fetching and specify that the association is always "
"eagerly fetched, or to enable \"extra-lazy\" fetching where most operations "
"do not initialize the collection (suitable for very large collections)"
msgstr ""
"<literal>lazy</literal> (optional - defaults to <literal>true</literal>) may "
"be used to disable lazy fetching and specify that the association is always "
"eagerly fetched, or to enable \"extra-lazy\" fetching where most operations "
"do not initialize the collection (suitable for very large collections)"

#. Tag: para
#: collection_mapping.xml:129
#, no-c-format
msgid ""
"<literal>inverse</literal> (optional - defaults to <literal>false</literal>) "
"mark this collection as the \"inverse\" end of a bidirectional association"
msgstr ""
"<literal>inverse</literal> (optional - defaults to <literal>false</literal>) "
"mark this collection as the \"inverse\" end of a bidirectional association"

#. Tag: para
#: collection_mapping.xml:135
#, no-c-format
msgid ""
"<literal>cascade</literal> (optional - defaults to <literal>none</literal>) "
"enable operations to cascade to child entities"
msgstr ""
"<literal>cascade</literal> (optional - defaults to <literal>none</literal>) "
"enable operations to cascade to child entities"

#. Tag: para
#: collection_mapping.xml:141
#, no-c-format
msgid ""
"<literal>sort</literal> (optional) specify a sorted collection with "
"<literal>natural</literal> sort order, or a given comparator class"
msgstr ""
"<literal>sort</literal> (optional) specify a sorted collection with "
"<literal>natural</literal> sort order, or a given comparator class"

#. Tag: para
#: collection_mapping.xml:147
#, no-c-format
msgid ""
"<literal>order-by</literal> (optional, JDK1.4 only) specify a table column "
"(or columns) that define the iteration order of the <literal>Map</literal>, "
"<literal>Set</literal> or bag, together with an optional <literal>asc</"
"literal> or <literal>desc</literal>"
msgstr ""
"<literal>order-by</literal> (optional, JDK1.4 only) specify a table column "
"(or columns) that define the iteration order of the <literal>Map</literal>, "
"<literal>Set</literal> or bag, together with an optional <literal>asc</"
"literal> or <literal>desc</literal>"

#. Tag: para
#: collection_mapping.xml:154
#, no-c-format
msgid ""
"<literal>where</literal> (optional) specify an arbitrary SQL <literal>WHERE</"
"literal> condition to be used when retrieving or removing the collection "
"(useful if the collection should contain only a subset of the available data)"
msgstr ""
"<literal>where</literal> (optional) specify an arbitrary SQL <literal>WHERE</"
"literal> condition to be used when retrieving or removing the collection "
"(useful if the collection should contain only a subset of the available data)"

#. Tag: para
#: collection_mapping.xml:161
#, no-c-format
msgid ""
"<literal>fetch</literal> (optional, defaults to <literal>select</literal>) "
"Choose between outer-join fetching, fetching by sequential select, and "
"fetching by sequential subselect."
msgstr ""
"<literal>fetch</literal> (optional, defaults to <literal>select</literal>) "
"Choose between outer-join fetching, fetching by sequential select, and "
"fetching by sequential subselect."

#. Tag: para
#: collection_mapping.xml:168
#, no-c-format
msgid ""
"<literal>batch-size</literal> (optional, defaults to <literal>1</literal>) "
"specify a \"batch size\" for lazily fetching instances of this collection."
msgstr ""
"<literal>batch-size</literal> (optional, defaults to <literal>1</literal>) "
"specify a \"batch size\" for lazily fetching instances of this collection."

#. Tag: para
#: collection_mapping.xml:174
#, no-c-format
msgid ""
"<literal>access</literal> (optional - defaults to <literal>property</"
"literal>): The strategy Hibernate should use for accessing the collection "
"property value."
msgstr ""
"<literal>access</literal> (optional - defaults to <literal>property</"