association_mapping.po

hibernate-distribution-3.3.1.GA-dist.zip源码

"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <set name=\"addresses\" table=\"PersonAddress\">\n"
"        <key column=\"personId\"/>\n"
"        <many-to-many column=\"addressId\"\n"
"            class=\"Address\"/>\n"
"    </set>\n"
"</class>\n"
"\n"
"<class name=\"Address\">\n"
"    <id name=\"id\" column=\"addressId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"</class>]]>"
msgstr ""

#. Tag: programlisting
#: association_mapping.xml:165 association_mapping.xml:270
#, no-c-format
msgid ""
"<![CDATA[\n"
"create table Person ( personId bigint not null primary key )\n"
"create table PersonAddress ( personId bigint not null, addressId bigint not "
"null, primary key (personId, addressId) )\n"
"create table Address ( addressId bigint not null primary key )\n"
"        ]]>"
msgstr ""

#. Tag: title
#: association_mapping.xml:172
#, no-c-format
msgid "Bidirectional associations"
msgstr "Associations bidirectionnelles"

#. Tag: title
#: association_mapping.xml:175 association_mapping.xml:235
#, no-c-format
msgid "one to many / many to one"
msgstr "un à plusieurs / plusieurs à un"

#. Tag: para
#: association_mapping.xml:177
#, no-c-format
msgid ""
"A <emphasis>bidirectional many-to-one association</emphasis> is the most "
"common kind of association. (This is the standard parent/child relationship.)"
msgstr ""
"Une <emphasis>association bidirectionnelle plusieurs à un (many-to-one)</"
"emphasis> est le type d'association que l'on rencontre le plus souvent. "
"(c'est la façon standard de créer des relations parents/enfants.)"

#. Tag: programlisting
#: association_mapping.xml:183
#, no-c-format
msgid ""
"<![CDATA[<class name=\"Person\">\n"
"    <id name=\"id\" column=\"personId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <many-to-one name=\"address\" \n"
"        column=\"addressId\"\n"
"        not-null=\"true\"/>\n"
"</class>\n"
"\n"
"<class name=\"Address\">\n"
"    <id name=\"id\" column=\"addressId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <set name=\"people\" inverse=\"true\">\n"
"        <key column=\"addressId\"/>\n"
"        <one-to-many class=\"Person\"/>\n"
"    </set>\n"
"</class>]]>"
msgstr ""

#. Tag: para
#: association_mapping.xml:187
#, no-c-format
msgid ""
"If you use a <literal>List</literal> (or other indexed collection) you need "
"to set the <literal>key</literal> column of the foreign key to <literal>not "
"null</literal>, and let Hibernate manage the association from the "
"collections side to maintain the index of each element (making the other "
"side virtually inverse by setting <literal>update=\"false\"</literal> and "
"<literal>insert=\"false\"</literal>):"
msgstr ""
"Si vous utilisez une <literal>List</literal> (ou toute autre collection "
"indexée) vous devez paramétrer la colonne <literal>key</literal> de la clé "
"étrangère à <literal>not null</literal>, et laisser Hibernate gérer "
"l'association depuis l'extrémité collection pour maintenir l'index de chaque "
"élément (rendant l'autre extrémité virtuellement inverse en paramétrant "
"<literal>update=\"false\"</literal> et <literal>insert=\"false\"</literal>):"

#. Tag: programlisting
#: association_mapping.xml:195
#, no-c-format
msgid ""
"<![CDATA[<class name=\"Person\">\n"
"   <id name=\"id\"/>\n"
"   ...\n"
"   <many-to-one name=\"address\"\n"
"      column=\"addressId\"\n"
"      not-null=\"true\"\n"
"      insert=\"false\"\n"
"      update=\"false\"/>\n"
"</class>\n"
"\n"
"<class name=\"Address\">\n"
"   <id name=\"id\"/>\n"
"   ...\n"
"   <list name=\"people\">\n"
"      <key column=\"addressId\" not-null=\"true\"/>\n"
"      <list-index column=\"peopleIdx\"/>\n"
"      <one-to-many class=\"Person\"/>\n"
"   </list>\n"
"</class>]]>"
msgstr ""

#. Tag: para
#: association_mapping.xml:197
#, no-c-format
msgid ""
"It is important that you define <literal>not-null=\"true\"</literal> on the "
"<literal>&lt;key&gt;</literal> element of the collection mapping if the "
"underlying foreign key column is <literal>NOT NULL</literal>. Don't only "
"declare <literal>not-null=\"true\"</literal> on a possible nested "
"<literal>&lt;column&gt;</literal> element, but on the <literal>&lt;key&gt;</"
"literal> element."
msgstr ""
"It is important that you define <literal>not-null=\"true\"</literal> on the "
"<literal>&lt;key&gt;</literal> element of the collection mapping if the "
"underlying foreign key column is <literal>NOT NULL</literal>. Don't only "
"declare <literal>not-null=\"true\"</literal> on a possible nested "
"<literal>&lt;column&gt;</literal> element, but on the <literal>&lt;key&gt;</"
"literal> element."

#. Tag: para
#: association_mapping.xml:211
#, no-c-format
msgid ""
"A <emphasis>bidirectional one-to-one association on a foreign key</emphasis> "
"is quite common."
msgstr ""
"Une <emphasis>association bidirectionnelle un à un (one-to-one) sur une clé "
"étrangère</emphasis> est aussi très fréquente."

#. Tag: programlisting
#: association_mapping.xml:216
#, no-c-format
msgid ""
"<![CDATA[<class name=\"Person\">\n"
"    <id name=\"id\" column=\"personId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <many-to-one name=\"address\" \n"
"        column=\"addressId\" \n"
"        unique=\"true\"\n"
"        not-null=\"true\"/>\n"
"</class>\n"
"\n"
"<class name=\"Address\">\n"
"    <id name=\"id\" column=\"addressId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"   <one-to-one name=\"person\" \n"
"        property-ref=\"address\"/>\n"
"</class>]]>"
msgstr ""

#. Tag: para
#: association_mapping.xml:219
#, no-c-format
msgid ""
"A <emphasis>bidirectional one-to-one association on a primary key</emphasis> "
"uses the special id generator."
msgstr ""
"Une <emphasis>association bidirectionnelle un-à-un (one-to-one) sur une clé "
"primaire</emphasis> utilise un générateur particulier d'id."

#. Tag: programlisting
#: association_mapping.xml:224
#, no-c-format
msgid ""
"<![CDATA[<class name=\"Person\">\n"
"    <id name=\"id\" column=\"personId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <one-to-one name=\"address\"/>\n"
"</class>\n"
"\n"
"<class name=\"Address\">\n"
"    <id name=\"id\" column=\"personId\">\n"
"        <generator class=\"foreign\">\n"
"            <param name=\"property\">person</param>\n"
"        </generator>\n"
"    </id>\n"
"    <one-to-one name=\"person\" \n"
"        constrained=\"true\"/>\n"
"</class>]]>"
msgstr ""

#. Tag: title
#: association_mapping.xml:232
#, no-c-format
msgid "Bidirectional associations with join tables"
msgstr "Associations bidirectionnelles avec table de jointure"

#. Tag: para
#: association_mapping.xml:237
#, no-c-format
msgid ""
"A <emphasis>bidirectional one-to-many association on a join table</"
"emphasis>. Note that the <literal>inverse=\"true\"</literal> can go on "
"either end of the association, on the collection, or on the join."
msgstr ""
"Une <emphasis>association bidirectionnelle un-à-plusieurs (one-to-many) sur "
"une table de jointure </emphasis>. Remarquez que <literal>inverse=\"true\"</"
"literal> peut s'appliquer sur les deux extrémités de l' association, sur la "
"collection, ou sur la jointure."

#. Tag: programlisting
#: association_mapping.xml:243
#, no-c-format
msgid ""
"<![CDATA[<class name=\"Person\">\n"
"    <id name=\"id\" column=\"personId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <set name=\"addresses\" \n"
"        table=\"PersonAddress\">\n"
"        <key column=\"personId\"/>\n"
"        <many-to-many column=\"addressId\"\n"
"            unique=\"true\"\n"
"            class=\"Address\"/>\n"
"    </set>\n"
"</class>\n"
"\n"
"<class name=\"Address\">\n"
"    <id name=\"id\" column=\"addressId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <join table=\"PersonAddress\" \n"
"        inverse=\"true\" \n"
"        optional=\"true\">\n"
"        <key column=\"addressId\"/>\n"
"        <many-to-one name=\"person\"\n"
"            column=\"personId\"\n"
"            not-null=\"true\"/>\n"
"    </join>\n"
"</class>]]>"
msgstr ""

#. Tag: programlisting
#: association_mapping.xml:244
#, no-c-format
msgid ""
"<![CDATA[\n"
"create table Person ( personId bigint not null primary key )\n"
"create table PersonAddress ( personId bigint not null, addressId bigint not "
"null primary key )\n"
"create table Address ( addressId bigint not null primary key )\n"
"        ]]>"
msgstr ""

#. Tag: para
#: association_mapping.xml:251
#, no-c-format
msgid ""
"A <emphasis>bidirectional one-to-one association on a join table</emphasis> "
"is extremely unusual, but possible."
msgstr ""
"Une <emphasis>association bidirectionnelle un-à-un (one-to-one) sur une "
"table de jointure</emphasis> est extrèmement rare mais envisageable."

#. Tag: programlisting
#: association_mapping.xml:256
#, no-c-format
msgid ""
"<![CDATA[<class name=\"Person\">\n"
"    <id name=\"id\" column=\"personId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <join table=\"PersonAddress\" \n"
"        optional=\"true\">\n"
"        <key column=\"personId\" \n"
"            unique=\"true\"/>\n"
"        <many-to-one name=\"address\"\n"
"            column=\"addressId\" \n"
"            not-null=\"true\"\n"
"            unique=\"true\"/>\n"
"    </join>\n"
"</class>\n"
"\n"
"<class name=\"Address\">\n"
"    <id name=\"id\" column=\"addressId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <join table=\"PersonAddress\" \n"
"        optional=\"true\"\n"
"        inverse=\"true\">\n"
"        <key column=\"addressId\" \n"
"            unique=\"true\"/>\n"
"        <many-to-one name=\"person\"\n"
"            column=\"personId\" \n"
"            not-null=\"true\"\n"
"            unique=\"true\"/>\n"
"    </join>\n"
"</class>]]>"
msgstr ""

#. Tag: para
#: association_mapping.xml:264
#, no-c-format
msgid ""
"Finally, we have a <emphasis>bidirectional many-to-many association</"
"emphasis>."
msgstr ""
"Finallement nous avons <emphasis>l'association bidirectionnelle plusieurs à "
"plusieurs</emphasis>."

#. Tag: programlisting
#: association_mapping.xml:268
#, no-c-format
msgid ""
"<![CDATA[<class name=\"Person\">\n"
"    <id name=\"id\" column=\"personId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <set name=\"addresses\" table=\"PersonAddress\">\n"
"        <key column=\"personId\"/>\n"
"        <many-to-many column=\"addressId\"\n"
"            class=\"Address\"/>\n"
"    </set>\n"
"</class>\n"
"\n"
"<class name=\"Address\">\n"
"    <id name=\"id\" column=\"addressId\">\n"
"        <generator class=\"native\"/>\n"
"    </id>\n"
"    <set name=\"people\" inverse=\"true\" table=\"PersonAddress\">\n"
"        <key column=\"addressId\"/>\n"
"        <many-to-many column=\"personId\"\n"
"            class=\"Person\"/>\n"
"    </set>\n"
"</class>]]>"
msgstr ""

#. Tag: title
#: association_mapping.xml:277
#, no-c-format
msgid "More complex association mappings"
msgstr "Des mappings plus complexes"

#. Tag: para
#: association_mapping.xml:279
#, no-c-format
msgid ""
"More complex association joins are <emphasis>extremely</emphasis> rare. "
"Hibernate makes it possible to handle more complex situations using SQL "
"fragments embedded in the mapping document. For example, if a table with "
"historical account information data defines <literal>accountNumber</"
"literal>, <literal>effectiveEndDate</literal> and "
"<literal>effectiveStartDate</literal>columns, mapped as follows:"
msgstr ""
"Des associations encore plus complexes sont <emphasis>extrêmement</emphasis> "
"rares. Hibernate permet de gérer des situations plus complexes en utilisant "
"des parties SQL dans les fichiers de mapping. Par exemple, si une table avec "
"l'historiques des informations d'un compte définit les colonnes "
"<literal>accountNumber</literal>, <literal>effectiveEndDate</literal> et "
"<literal>effectiveStartDate</literal>, mappées de telle sorte:"

#. Tag: programlisting
#: association_mapping.xml:288
#, no-c-format
msgid ""
"<![CDATA[<properties name=\"currentAccountKey\">\n"
"    <property name=\"accountNumber\" type=\"string\" not-null=\"true\"/>\n"
"    <property name=\"currentAccount\" type=\"boolean\">\n"
"        <formula>case when effectiveEndDate is null then 1 else 0 end</"
"formula>\n"
"    </property>\n"
"</properties>\n"
"<property name=\"effectiveEndDate\" type=\"date\"/>\n"
"<property name=\"effectiveStateDate\" type=\"date\" not-null=\"true\"/>]]>"
msgstr ""

#. Tag: para
#: association_mapping.xml:290
#, no-c-format
msgid ""
"Then we can map an association to the <emphasis>current</emphasis> instance "
"(the one with null <literal>effectiveEndDate</literal>) using:"
msgstr ""
"alors nous pouvons mapper une association à l'instance <emphasis>courante</"
"emphasis> (celle avec une <literal>effectiveEndDate</literal>) nulle en "
"utilisant:"

#. Tag: programlisting
#: association_mapping.xml:295
#, no-c-format
msgid ""
"<![CDATA[<many-to-one name=\"currentAccountInfo\" \n"
"        property-ref=\"currentAccountKey\"\n"
"        class=\"AccountInfo\">\n"
"    <column name=\"accountNumber\"/>\n"
"    <formula>'1'</formula>\n"
"</many-to-one>]]>"
msgstr ""

#. Tag: para
#: association_mapping.xml:297
#, no-c-format
msgid ""
"In a more complex example, imagine that the association between "
"<literal>Employee</literal> and <literal>Organization</literal> is "
"maintained in an <literal>Employment</literal> table full of historical "
"employment data. Then an association to the employee's <emphasis>most "
"recent</emphasis> employer (the one with the most recent <literal>startDate</"
"literal>) might be mapped this way:"
msgstr ""
"Dans un exemple plus complexe, imaginez qu'une association entre "
"<literal>Employee</literal> et <literal>Organization</literal> est gérée "
"dans une table <literal>Employment</literal> pleines de données historiques. "
"Dans ce cas, une association vers l'employeur <emphasis>le plus récent</"
"emphasis> (celui avec la <literal>startDate</literal> la plus récente) "
"pourrait être mappée comme cela:"

#. Tag: programlisting
#: association_mapping.xml:305
#, no-c-format
msgid ""
"<![CDATA[<join>\n"
"    <key column=\"employeeId\"/>\n"
"    <subselect>\n"
"        select employeeId, orgId \n"
"        from Employments \n"
"        group by orgId \n"
"        having startDate = max(startDate)\n"
"    </subselect>\n"
"    <many-to-one name=\"mostRecentEmployer\" \n"
"            class=\"Organization\" \n"
"            column=\"orgId\"/>\n"
"</join>]]>"
msgstr ""

#. Tag: para
#: association_mapping.xml:307
#, no-c-format
msgid ""
"You can get quite creative with this functionality, but it is usually more "
"practical to handle these kinds of cases using HQL or a criteria query."
msgstr ""
"Vous pouvez être créatif grace à ces possibilités, mais il est généralement "
"plus pratique d'utiliser des requêtes HQL ou criteria dans ce genre de "
"situation."