basic_mapping.po

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

"<literal>save()</literal> is called. This is the default strategy if no "
"<literal>&lt;generator&gt;</literal> element is specified."
msgstr ""
"deixa a aplicação definir um identificador para o objeto antes que o "
"<literal>save()</literal> seja chamado. Esta é a estratégia default se "
"nenhum elemento <literal>&lt;generator&gt;</literal> é especificado."

#. Tag: literal
#: basic_mapping.xml:642
#, no-c-format
msgid "select"
msgstr "select"

#. Tag: para
#: basic_mapping.xml:644
#, no-c-format
msgid ""
"retrieves a primary key assigned by a database trigger by selecting the row "
"by some unique key and retrieving the primary key value."
msgstr ""
"retorna a chave primaria recuperada por uma trigger do banco de dados, "
"selecionado uma linha pela chave única e recuperando o valor da chave "
"primária."

#. Tag: literal
#: basic_mapping.xml:651
#, no-c-format
msgid "foreign"
msgstr "foreign"

#. Tag: para
#: basic_mapping.xml:653
#, no-c-format
msgid ""
"uses the identifier of another associated object. Usually used in "
"conjunction with a <literal>&lt;one-to-one&gt;</literal> primary key "
"association."
msgstr ""
"utiliza o identificador de um outro objeto associado. Normalmente utilizado "
"em conjunto com uma associaçõa de chave primária do tipo <literal>&lt;one-to-"
"one&gt;</literal>."

#. Tag: literal
#: basic_mapping.xml:660
#, no-c-format
msgid "sequence-identity"
msgstr "sequence-identity"

#. Tag: para
#: basic_mapping.xml:662
#, no-c-format
msgid ""
"a specialized sequence generation strategy which utilizes a database "
"sequence for the actual value generation, but combines this with JDBC3 "
"getGeneratedKeys to actually return the generated identifier value as part "
"of the insert statement execution. This strategy is only known to be "
"supported on Oracle 10g drivers targetted for JDK 1.4. Note comments on "
"these insert statements are disabled due to a bug in the Oracle drivers."
msgstr ""
"a specialized sequence generation strategy which utilizes a database "
"sequence for the actual value generation, but combines this with JDBC3 "
"getGeneratedKeys to actually return the generated identifier value as part "
"of the insert statement execution. This strategy is only known to be "
"supported on Oracle 10g drivers targetted for JDK 1.4. Note comments on "
"these insert statements are disabled due to a bug in the Oracle drivers."

#. Tag: title
#: basic_mapping.xml:679
#, no-c-format
msgid "Hi/lo algorithm"
msgstr "Algoritmo Hi/lo"

#. Tag: para
#: basic_mapping.xml:680
#, no-c-format
msgid ""
"The <literal>hilo</literal> and <literal>seqhilo</literal> generators "
"provide two alternate implementations of the hi/lo algorithm, a favorite "
"approach to identifier generation. The first implementation requires a "
"\"special\" database table to hold the next available \"hi\" value. The "
"second uses an Oracle-style sequence (where supported)."
msgstr ""
"Os geradores <literal>hilo</literal> e <literal>seqhilo</literal> fornecem "
"duas implementações alternativas do algoritmo hi/lo, uma solução "
"preferencial para a geração de identificadores. A primeira implementação "
"requer uma tabela especial do banco de dados para manter o proximo valor \"hi"
"\" disponível. A segunda utiliza uma seqüência do estilo Oracle (quando "
"suportado)."

#. Tag: programlisting
#: basic_mapping.xml:687
#, no-c-format
msgid ""
"<![CDATA[<id name=\"id\" type=\"long\" column=\"cat_id\">\n"
"        <generator class=\"hilo\">\n"
"                <param name=\"table\">hi_value</param>\n"
"                <param name=\"column\">next_value</param>\n"
"                <param name=\"max_lo\">100</param>\n"
"        </generator>\n"
"</id>]]>"
msgstr ""

#. Tag: programlisting
#: basic_mapping.xml:689
#, no-c-format
msgid ""
"<![CDATA[<id name=\"id\" type=\"long\" column=\"cat_id\">\n"
"        <generator class=\"seqhilo\">\n"
"                <param name=\"sequence\">hi_value</param>\n"
"                <param name=\"max_lo\">100</param>\n"
"        </generator>\n"
"</id>]]>"
msgstr ""

#. Tag: para
#: basic_mapping.xml:691
#, no-c-format
msgid ""
"Unfortunately, you can't use <literal>hilo</literal> when supplying your own "
"<literal>Connection</literal> to Hibernate. When Hibernate is using an "
"application server datasource to obtain connections enlisted with JTA, you "
"must properly configure the <literal>hibernate.transaction."
"manager_lookup_class</literal>."
msgstr ""
"Infelizemente, voce não pode utilizar <literal>hilo</literal> quando estiver "
"fornecendo sia propria <literal>Connection</literal> para o Hibernate. "
"Quando o Hibernate está usando um datasource do servidor de aplicações para "
"obter conexões suportadas com JTA, você precisa configurar adequadamente o "
"<literal>hibernate.transaction.manager_lookup_class</literal>."

#. Tag: title
#: basic_mapping.xml:700
#, no-c-format
msgid "UUID algorithm"
msgstr "UUID algorithm"

#. Tag: para
#: basic_mapping.xml:701
#, no-c-format
msgid ""
"The UUID contains: IP address, startup time of the JVM (accurate to a "
"quarter second), system time and a counter value (unique within the JVM). "
"It's not possible to obtain a MAC address or memory address from Java code, "
"so this is the best we can do without using JNI."
msgstr ""
"O UUID contem: o endereço IP, hora de inicio da JVM (com precisão de um "
"quarto de segundo), a hora do sistema e um valor contador (unico dentro da "
"JVM). Não é possivel obter o endereço MAC ou um endereço de memória do "
"código Java, assim este é o melhor que pode ser feito sem utilizar JNI."

#. Tag: title
#: basic_mapping.xml:710
#, no-c-format
msgid "Identity columns and sequences"
msgstr "Colunas de identidade e sequencias"

#. Tag: para
#: basic_mapping.xml:711
#, no-c-format
msgid ""
"For databases which support identity columns (DB2, MySQL, Sybase, MS SQL), "
"you may use <literal>identity</literal> key generation. For databases that "
"support sequences (DB2, Oracle, PostgreSQL, Interbase, McKoi, SAP DB) you "
"may use <literal>sequence</literal> style key generation. Both these "
"strategies require two SQL queries to insert a new object."
msgstr ""
"Para bancos de dados que suportam colunas de identidade (DB2, MySQL, Sybase, "
"MS SQL), você pode utilizar uma geração de chave <literal>identity</"
"literal>. Para bancos de dados que suportam sequencias (DB2, Oracle, "
"PostgreSQL, Interbase, McKoi, SAP DB) voce pode utilizar a geração de chaves "
"no estilo <literal>sequence</literal>. As duas estratégias requerem duas "
"consultas SQL para inserir um novo objeto."

#. Tag: programlisting
#: basic_mapping.xml:719
#, no-c-format
msgid ""
"<![CDATA[<id name=\"id\" type=\"long\" column=\"person_id\">\n"
"        <generator class=\"sequence\">\n"
"                <param name=\"sequence\">person_id_sequence</param>\n"
"        </generator>\n"
"</id>]]>"
msgstr ""

#. Tag: programlisting
#: basic_mapping.xml:721
#, no-c-format
msgid ""
"<![CDATA[<id name=\"id\" type=\"long\" column=\"person_id\" unsaved-value=\"0"
"\">\n"
"        <generator class=\"identity\"/>\n"
"</id>]]>"
msgstr ""

#. Tag: para
#: basic_mapping.xml:723
#, no-c-format
msgid ""
"For cross-platform development, the <literal>native</literal> strategy will "
"choose from the <literal>identity</literal>, <literal>sequence</literal> and "
"<literal>hilo</literal> strategies, dependant upon the capabilities of the "
"underlying database."
msgstr ""
"Para desenvolvimento multi-plataforma, a estratégia <literal>native</"
"literal> irá escolher entre as estratégias i <literal>identity</literal>, "
"<literal>sequence</literal> e <literal>hilo</literal>, dependendo das "
"capacidades do banco de dados utilizado."

#. Tag: title
#: basic_mapping.xml:732
#, no-c-format
msgid "Assigned identifiers"
msgstr "Identificadores especificados"

#. Tag: para
#: basic_mapping.xml:733
#, no-c-format
msgid ""
"If you want the application to assign identifiers (as opposed to having "
"Hibernate generate them), you may use the <literal>assigned</literal> "
"generator. This special generator will use the identifier value already "
"assigned to the object's identifier property. This generator is used when "
"the primary key is a natural key instead of a surrogate key. This is the "
"default behavior if you do no specify a <literal>&lt;generator&gt;</literal> "
"element."
msgstr ""
"Se você quer que a aplicação especifique os identificadores (em vez do "
"Hibernate gerá-los) você deve utilizar o gerador <literal>assigned</"
"literal>. Este gerador especial irá utilizar o valor do identificador "
"especificado para a propriedade de identificação do objeto. Este gerador é "
"usado quando a chave primaria é a chave natural em vez de uma surrogate key. "
"Este é o comportamento padrão se você não especificar um elemento "
"<literal>&lt;generator&gt;</literal>."

#. Tag: para
#: basic_mapping.xml:742
#, no-c-format
msgid ""
"Choosing the <literal>assigned</literal> generator makes Hibernate use "
"<literal>unsaved-value=\"undefined\"</literal>, forcing Hibernate to go to "
"the database to determine if an instance is transient or detached, unless "
"there is a version or timestamp property, or you define <literal>Interceptor."
"isUnsaved()</literal>."
msgstr ""
"Escolher o gerador <literal>assigned</literal> faz com que o Hibernate "
"utilize <literal>unsaved-value=\"undefined\"</literal>, forçando o Hibernate "
"ir até o banco de dados para determinar se uma instância está transiente ou "
"desasociada, a menos que haja uma versão ou uma propriedade timestamp, ou "
"você pode definir <literal>Interceptor.isUnsaved()</literal>."

#. Tag: title
#: basic_mapping.xml:752
#, no-c-format
msgid "Primary keys assigned by triggers"
msgstr "Chaves primárias geradas por triggers"

#. Tag: para
#: basic_mapping.xml:753
#, no-c-format
msgid ""
"For legacy schemas only (Hibernate does not generate DDL with triggers)."
msgstr "Apenas para sistemas legados (o Hibernate nao gera DDL com triggers)."

#. Tag: programlisting
#: basic_mapping.xml:757
#, no-c-format
msgid ""
"<![CDATA[<id name=\"id\" type=\"long\" column=\"person_id\">\n"
"        <generator class=\"select\">\n"
"                <param name=\"key\">socialSecurityNumber</param>\n"
"        </generator>\n"
"</id>]]>"
msgstr ""

#. Tag: para
#: basic_mapping.xml:759
#, no-c-format
msgid ""
"In the above example, there is a unique valued property named "
"<literal>socialSecurityNumber</literal> defined by the class, as a natural "
"key, and a surrogate key named <literal>person_id</literal> whose value is "
"generated by a trigger."
msgstr ""
"No exemplo acima, há uma única propriedade com valor nomeada "
"<literal>socialSecurityNumber</literal> definida pela classe, uma chave "
"natural, e uma surrogate key nomeada <literal>person_id</literal> cujo valor "
"é gerado pro uma trigger."

#. Tag: title
#: basic_mapping.xml:771
#, no-c-format
msgid "Enhanced identifier generators"
msgstr "Enhanced identifier generators"

#. Tag: para
#: basic_mapping.xml:773
#, no-c-format
msgid ""
"Starting with release 3.2.3, there are 2 new generators which represent a re-"
"thinking of 2 different aspects of identifier generation. The first aspect "
"is database portability; the second is optimization (not having to query the "
"database for every request for a new identifier value). These two new "
"generators are intended to take the place of some of the named generators "
"described above (starting in 3.3.x); however, they are included in the "
"current releases and can be referenced by FQN."
msgstr ""
"Starting with release 3.2.3, there are 2 new generators which represent a re-"
"thinking of 2 different aspects of identifier generation. The first aspect "
"is database portability; the second is optimization (not having to query the "
"database for every request for a new identifier value). These two new "
"generators are intended to take the place of some of the named generators "
"described above (starting in 3.3.x); however, they are included in the "
"current releases and can be referenced by FQN."

#. Tag: para
#: basic_mapping.xml:781
#, fuzzy, no-c-format
msgid ""
"The first of these new generators is <literal>org.hibernate.id.enhanced."
"SequenceStyleGenerator</literal> which is intended firstly as a replacement "
"for the <literal>sequence</literal> generator and secondly as a better "
"portability generator than <literal>native</literal> (because "
"<literal>native</literal> (generally) chooses between <literal>identity</"
"literal> and <literal>sequence</literal> which have largely different "
"semantics which can cause subtle isssues in applications eyeing "
"portability). <literal>org.hibernate.id.enhanced.SequenceStyleGenerator</"
"literal> however achieves portability in a different manner. It chooses "
"between using a table or a sequence in the database to store its "
"incrementing values