session_api.po

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

#. Tag: para
#: session_api.xml:607
#, no-c-format
msgid "the application loads an object in the first session"
msgstr "the application loads an object in the first session"

#. Tag: para
#: session_api.xml:612
#, no-c-format
msgid "the object is passed up to the UI tier"
msgstr "the object is passed up to the UI tier"

#. Tag: para
#: session_api.xml:617
#, no-c-format
msgid "some modifications are made to the object"
msgstr "some modifications are made to the object"

#. Tag: para
#: session_api.xml:622
#, no-c-format
msgid "the object is passed back down to the business logic tier"
msgstr "the object is passed back down to the business logic tier"

#. Tag: para
#: session_api.xml:627
#, no-c-format
msgid ""
"the application persists these modifications by calling <literal>update()</"
"literal> in a second session"
msgstr ""
"the application persists these modifications by calling <literal>update()</"
"literal> in a second session"

#. Tag: para
#: session_api.xml:634
#, no-c-format
msgid "<literal>saveOrUpdate()</literal> does the following:"
msgstr "<literal>saveOrUpdate()</literal> does the following:"

#. Tag: para
#: session_api.xml:640
#, no-c-format
msgid "if the object is already persistent in this session, do nothing"
msgstr "if the object is already persistent in this session, do nothing"

#. Tag: para
#: session_api.xml:645
#, no-c-format
msgid ""
"if another object associated with the session has the same identifier, throw "
"an exception"
msgstr ""
"if another object associated with the session has the same identifier, throw "
"an exception"

#. Tag: para
#: session_api.xml:651
#, no-c-format
msgid "if the object has no identifier property, <literal>save()</literal> it"
msgstr "if the object has no identifier property, <literal>save()</literal> it"

#. Tag: para
#: session_api.xml:656
#, no-c-format
msgid ""
"if the object's identifier has the value assigned to a newly instantiated "
"object, <literal>save()</literal> it"
msgstr ""
"if the object's identifier has the value assigned to a newly instantiated "
"object, <literal>save()</literal> it"

#. Tag: para
#: session_api.xml:662
#, no-c-format
msgid ""
"if the object is versioned (by a <literal>&lt;version&gt;</literal> or "
"<literal>&lt;timestamp&gt;</literal>), and the version property value is the "
"same value assigned to a newly instantiated object, <literal>save()</"
"literal> it"
msgstr ""
"if the object is versioned (by a <literal>&lt;version&gt;</literal> or "
"<literal>&lt;timestamp&gt;</literal>), and the version property value is the "
"same value assigned to a newly instantiated object, <literal>save()</"
"literal> it"

#. Tag: para
#: session_api.xml:670
#, no-c-format
msgid "otherwise <literal>update()</literal> the object"
msgstr "otherwise <literal>update()</literal> the object"

#. Tag: para
#: session_api.xml:676
#, no-c-format
msgid "and <literal>merge()</literal> is very different:"
msgstr "and <literal>merge()</literal> is very different:"

#. Tag: para
#: session_api.xml:682
#, no-c-format
msgid ""
"if there is a persistent instance with the same identifier currently "
"associated with the session, copy the state of the given object onto the "
"persistent instance"
msgstr ""
"if there is a persistent instance with the same identifier currently "
"associated with the session, copy the state of the given object onto the "
"persistent instance"

#. Tag: para
#: session_api.xml:689
#, no-c-format
msgid ""
"if there is no persistent instance currently associated with the session, "
"try to load it from the database, or create a new persistent instance"
msgstr ""
"if there is no persistent instance currently associated with the session, "
"try to load it from the database, or create a new persistent instance"

#. Tag: para
#: session_api.xml:695
#, no-c-format
msgid "the persistent instance is returned"
msgstr "the persistent instance is returned"

#. Tag: para
#: session_api.xml:700
#, no-c-format
msgid ""
"the given instance does not become associated with the session, it remains "
"detached"
msgstr ""
"the given instance does not become associated with the session, it remains "
"detached"

#. Tag: title
#: session_api.xml:710
#, no-c-format
msgid "Deleting persistent objects"
msgstr "Deleting persistent objects"

#. Tag: para
#: session_api.xml:712
#, no-c-format
msgid ""
"<literal>Session.delete()</literal> will remove an object's state from the "
"database. Of course, your application might still hold a reference to a "
"deleted object. It's best to think of <literal>delete()</literal> as making "
"a persistent instance transient."
msgstr ""
"<literal>Session.delete()</literal> will remove an object's state from the "
"database. Of course, your application might still hold a reference to a "
"deleted object. It's best to think of <literal>delete()</literal> as making "
"a persistent instance transient."

#. Tag: programlisting
#: session_api.xml:719
#, no-c-format
msgid "<![CDATA[sess.delete(cat);]]>"
msgstr ""

#. Tag: para
#: session_api.xml:721
#, no-c-format
msgid ""
"You may delete objects in any order you like, without risk of foreign key "
"constraint violations. It is still possible to violate a <literal>NOT NULL</"
"literal> constraint on a foreign key column by deleting objects in the wrong "
"order, e.g. if you delete the parent, but forget to delete the children."
msgstr ""
"You may delete objects in any order you like, without risk of foreign key "
"constraint violations. It is still possible to violate a <literal>NOT NULL</"
"literal> constraint on a foreign key column by deleting objects in the wrong "
"order, e.g. if you delete the parent, but forget to delete the children."

#. Tag: title
#: session_api.xml:732
#, no-c-format
msgid "Replicating object between two different datastores"
msgstr "Replicating object between two different datastores"

#. Tag: para
#: session_api.xml:734
#, no-c-format
msgid ""
"It is occasionally useful to be able to take a graph of persistent instances "
"and make them persistent in a different datastore, without regenerating "
"identifier values."
msgstr ""
"It is occasionally useful to be able to take a graph of persistent instances "
"and make them persistent in a different datastore, without regenerating "
"identifier values."

#. Tag: programlisting
#: session_api.xml:740
#, no-c-format
msgid ""
"<![CDATA[//retrieve a cat from one database\n"
"Session session1 = factory1.openSession();\n"
"Transaction tx1 = session1.beginTransaction();\n"
"Cat cat = session1.get(Cat.class, catId);\n"
"tx1.commit();\n"
"session1.close();\n"
"\n"
"//reconcile with a second database\n"
"Session session2 = factory2.openSession();\n"
"Transaction tx2 = session2.beginTransaction();\n"
"session2.replicate(cat, ReplicationMode.LATEST_VERSION);\n"
"tx2.commit();\n"
"session2.close();]]>"
msgstr ""

#. Tag: para
#: session_api.xml:742
#, no-c-format
msgid ""
"The <literal>ReplicationMode</literal> determines how <literal>replicate()</"
"literal> will deal with conflicts with existing rows in the database."
msgstr ""
"The <literal>ReplicationMode</literal> determines how <literal>replicate()</"
"literal> will deal with conflicts with existing rows in the database."

#. Tag: para
#: session_api.xml:749
#, no-c-format
msgid ""
"<literal>ReplicationMode.IGNORE</literal> - ignore the object when there is "
"an existing database row with the same identifier"
msgstr ""
"<literal>ReplicationMode.IGNORE</literal> - ignore the object when there is "
"an existing database row with the same identifier"

#. Tag: para
#: session_api.xml:755
#, no-c-format
msgid ""
"<literal>ReplicationMode.OVERWRITE</literal> - overwrite any existing "
"database row with the same identifier"
msgstr ""
"<literal>ReplicationMode.OVERWRITE</literal> - overwrite any existing "
"database row with the same identifier"

#. Tag: para
#: session_api.xml:761
#, no-c-format
msgid ""
"<literal>ReplicationMode.EXCEPTION</literal> - throw an exception if there "
"is an existing database row with the same identifier"
msgstr ""
"<literal>ReplicationMode.EXCEPTION</literal> - throw an exception if there "
"is an existing database row with the same identifier"

#. Tag: para
#: session_api.xml:767
#, no-c-format
msgid ""
"<literal>ReplicationMode.LATEST_VERSION</literal> - overwrite the row if its "
"version number is earlier than the version number of the object, or ignore "
"the object otherwise"
msgstr ""
"<literal>ReplicationMode.LATEST_VERSION</literal> - overwrite the row if its "
"version number is earlier than the version number of the object, or ignore "
"the object otherwise"

#. Tag: para
#: session_api.xml:775
#, no-c-format
msgid ""
"Usecases for this feature include reconciling data entered into different "
"database instances, upgrading system configuration information during "
"product upgrades, rolling back changes made during non-ACID transactions and "
"more."
msgstr ""
"Usecases for this feature include reconciling data entered into different "
"database instances, upgrading system configuration information during "
"product upgrades, rolling back changes made during non-ACID transactions and "
"more."

#. Tag: title
#: session_api.xml:784
#, no-c-format
msgid "Flushing the Session"
msgstr "Flushing the Session"

#. Tag: para
#: session_api.xml:786
#, no-c-format
msgid ""
"From time to time the <literal>Session</literal> will execute the SQL "
"statements needed to synchronize the JDBC connection's state with the state "
"of objects held in memory. This process, <emphasis>flush</emphasis>, occurs "
"by default at the following points"
msgstr ""
"From time to time the <literal>Session</literal> will execute the SQL "
"statements needed to synchronize the JDBC connection's state with the state "
"of objects held in memory. This process, <emphasis>flush</emphasis>, occurs "
"by default at the following points"

#. Tag: para
#: session_api.xml:795
#, no-c-format
msgid "before some query executions"
msgstr "before some query executions"

#. Tag: para
#: session_api.xml:800
#, no-c-format
msgid "from <literal>org.hibernate.Transaction.commit()</literal>"
msgstr "from <literal>org.hibernate.Transaction.commit()</literal>"

#. Tag: para
#: session_api.xml:805
#, no-c-format
msgid "from <literal>Session.flush()</literal>"
msgstr "from <literal>Session.flush()</literal>"

#. Tag: para
#: session_api.xml:811
#, no-c-format
msgid "The SQL statements are issued in the following order"
msgstr "The SQL statements are issued in the following order"

#. Tag: para
#: session_api.xml:817
#, no-c-format
msgid ""
"all entity insertions, in the same order the corresponding objects were "
"saved using <literal>Session.save()</literal>"
msgstr ""
"all entity insertions, in the same order the corresponding objects were "
"saved using <literal>Session.save()</literal>"

#. Tag: para
#: session_api.xml:823
#, no-c-format
msgid "all entity updates"
msgstr "all entity updates"

#. Tag: para
#: session_api.xml:828
#, no-c-format
msgid "all collection deletions"
msgstr "all collection deletions"

#. Tag: para
#: session_api.xml:833
#, no-c-format
msgid "all collection element deletions, updates and insertions"
msgstr "all collection element deletions, updates and insertions"