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[Hibernate-commits] Hibernate/doc/reference/src advanced_or_mapping.xml,1.23,1.24 basic_or_mapping.xml,1.31,1.32 persistent_classes.xml,1.9,1.10
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From: <one...@us...> - 2002-11-05 13:40:57
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Update of /cvsroot/hibernate/Hibernate/doc/reference/src
In directory usw-pr-cvs1:/tmp/cvs-serv22899/doc/reference/src
Modified Files:
advanced_or_mapping.xml basic_or_mapping.xml
persistent_classes.xml
Log Message:
updates to hibernate-mapping-1.1.dtd and documentation
Index: advanced_or_mapping.xml
===================================================================
RCS file: /cvsroot/hibernate/Hibernate/doc/reference/src/advanced_or_mapping.xml,v
retrieving revision 1.23
retrieving revision 1.24
diff -C2 -d -r1.23 -r1.24
*** advanced_or_mapping.xml 29 Oct 2002 16:09:08 -0000 1.23
--- advanced_or_mapping.xml 5 Nov 2002 13:40:54 -0000 1.24
***************
*** 300,304 ****
<programlisting><![CDATA[<map role="holidays" table="holidays" schema="dbo" order-by="hol_name asc">
! <key column="id" type="string">
<generator class="uuid.hex"/>
</key>
--- 300,304 ----
<programlisting><![CDATA[<map role="holidays" table="holidays" schema="dbo" order-by="hol_name asc">
! <generated-key column="id" type="string">
<generator class="uuid.hex"/>
</key>
***************
*** 680,684 ****
<set role="childset" lazy="true">
! <key type="long" column="id">
<generator class="sequence"/>
</key>
--- 680,684 ----
<set role="childset" lazy="true">
! <generated-key type="long" column="id">
<generator class="sequence"/>
</key>
***************
*** 951,957 ****
<programlisting><![CDATA[<class name="eg.Foo" table"FOOS">
<composite-id name="comp_id" class="eg.FooCompositeID">
! <property name="string"/>
! <property name="short"/>
! <property name="date" column="date_" type="date"/>
</composite-id>
<property name="name"/>
--- 951,957 ----
<programlisting><![CDATA[<class name="eg.Foo" table"FOOS">
<composite-id name="comp_id" class="eg.FooCompositeID">
! <key-property name="string"/>
! <key-property name="short"/>
! <key-property name="date" column="date_" type="date"/>
</composite-id>
<property name="name"/>
Index: basic_or_mapping.xml
===================================================================
RCS file: /cvsroot/hibernate/Hibernate/doc/reference/src/basic_or_mapping.xml,v
retrieving revision 1.31
retrieving revision 1.32
diff -C2 -d -r1.31 -r1.32
*** basic_or_mapping.xml 30 Oct 2002 13:34:25 -0000 1.31
--- basic_or_mapping.xml 5 Nov 2002 13:40:54 -0000 1.32
***************
*** 17,21 ****
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
! "http://hibernate.sourceforge.net/hibernate-mapping.dtd">
<hibernate-mapping>
--- 17,21 ----
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
! "http://hibernate.sourceforge.net/hibernate-mapping-1.1.dtd">
<hibernate-mapping>
***************
*** 36,40 ****
</set>
<subclass name="eg.DomesticCat" discriminator-value="D">
! <property name="date" column="bar-date" type="date"/>
</subclass>
</class>
--- 36,40 ----
</set>
<subclass name="eg.DomesticCat" discriminator-value="D">
! <property name="name" type="string"/>
</subclass>
</class>
***************
*** 412,416 ****
unsaved-value="any|none|null">
! <property name="propertyName" type="typename"/>
......
</composite-id>]]></programlisting>
--- 412,416 ----
unsaved-value="any|none|null">
! <key-property name="propertyName" type="typename"/>
......
</composite-id>]]></programlisting>
***************
*** 419,423 ****
For a table with a composite key, you may map multiple properties of the class
as identifier properties. The <literal><composite-id></literal> element
! accepts <literal><property></literal> mappings as child elements.
</para>
--- 419,424 ----
For a table with a composite key, you may map multiple properties of the class
as identifier properties. The <literal><composite-id></literal> element
! accepts <literal><key-property></literal> property mappings and
! <literal><key-many-to-one></literal> mappings as child elements.
</para>
***************
*** 471,481 ****
<para>
! The <literal><discriminator></literal> element is required for
! polymorphic persistence and declares a discriminator column of the table. The
! discriminator column contains marker values that tell the persistence layer
! what subclass to instantiate for a particular row. A restricted set of types
! may be used: <literal>string</literal>, <literal>character</literal>,
! <literal>integer</literal>, <literal>byte</literal>, <literal>short</literal>,
! <literal>boolean</literal>, <literal>yes_no</literal>, <literal>true_false</literal>.
</para>
--- 472,482 ----
<para>
! The <literal><discriminator></literal> element is required for polymorphic persistence
! using the table-per-class-hierarchy mapping strategy and declares a discriminator column of the
! table. The discriminator column contains marker values that tell the persistence layer what
! subclass to instantiate for a particular row. A restricted set of types may be used:
! <literal>string</literal>, <literal>character</literal>, <literal>integer</literal>,
! <literal>byte</literal>, <literal>short</literal>, <literal>boolean</literal>,
! <literal>yes_no</literal>, <literal>true_false</literal>.
</para>
***************
*** 839,843 ****
<para>
Finally, polymorphic persistence requires the declaration of each subclass of
! the root persistent class.
</para>
--- 840,845 ----
<para>
Finally, polymorphic persistence requires the declaration of each subclass of
! the root persistent class. For the (recommended) table-per-class-hierarchy
! mapping strategy, the <literal><subclass></literal> declaration is used.
</para>
***************
*** 880,885 ****
</sect2>
! <sect2 id="or-mapping-s1-12">
! <title>Collection elements</title>
<para>
--- 882,960 ----
</sect2>
! <sect2 id="or-mapping-s1-11b">
! <title>joined-subclass</title>
!
! <para>
! Alternatively, a subclass that is persisted to its own table (table-per-subclass
! mapping strategy) is declared using <literal><joined-subclass></literal>
! </para>
!
! <programlisting><![CDATA[<joined-subclass
! name="ClassName"
! proxy="ProxyInterface">
!
! <key .... >
!
! <property .... />
! .....
! </subclass>]]></programlisting>
!
! <itemizedlist>
! <listitem>
! <para>
! <literal>name</literal>: The fully qualified class name of the subclass.
! </para>
! </listitem>
! <listitem>
! <para>
! <literal>proxy</literal> (optional): Specifies an interface to use for lazy
! initializing proxies (JDK 1.3+ only).
! </para>
! </listitem>
! </itemizedlist>
!
! <para>
! No discriminator column is required for this mapping strategy. Each subclass must,
! however, declare a table column holding the object identifier using the
! <literal><key></literal> element. The mapping at the start of the chapter
! would be re-written as:
! </para>
!
! <programlisting><![CDATA[<?xml version="1.0"?>
! <!DOCTYPE hibernate-mapping PUBLIC
! "-//Hibernate/Hibernate Mapping DTD//EN"
! "http://hibernate.sourceforge.net/hibernate-mapping-1.1.dtd">
!
! <hibernate-mapping>
!
! <class name="eg.Cat" table="CATS">
! <id name="id" column="uid" type="long">
! <generator class="hilo.long"/>
! </id>
! <property name="birthdate" type="date"/>
! <property name="color" not-null="true"/>
! <property name="sex" not-null="true"/>
! <property name="weight"/>
! <many-to-one name="mate"/>
! <set role="kittens">
! <key column="MOTHER"/>
! <one-to-many class="eg.Cat"/>
! </set>
! <joined-subclass name="eg.DomesticCat">
! <key column="CAT"/>
! <property name="name" type="string"/>
! </joined-subclass>
! </class>
!
! <class name="eg.Baz">
! <!-- mapping for Baz goes here -->
! </class>
!
! </hibernate-mapping>]]></programlisting>
!
! </sect2>
!
! <sect2 id="or-mapping-s1-12">
! <title>map, set, list, bag</title>
<para>
***************
*** 1141,1190 ****
</sect2>
- </sect1>
-
-
-
- <sect1 id="or-mapping-s3">
- <title>Limitations</title>
-
- <para>
- You should be aware of the following limitation to the relational mappings used
- by Hibernate.
- </para>
-
- <variablelist>
- <varlistentry>
- <term>non-normalized table design</term>
- <listitem>
- <para>
- Only two O-R mapping strategies are properly supported:
- </para>
- <itemizedlist>
- <listitem>
- <para>
- table per class hierarchy
- </para>
- </listitem>
- <listitem>
- <para>
- table per concrete class
- </para>
- </listitem>
- </itemizedlist>
- <para>
- There is so far no support for a normalized table per subclass design. On
- the other hand, the good news is that you can mix together the two supported
- strategies in the same class hierarchy.
- </para>
- </listitem>
- </varlistentry>
- </variablelist>
-
- <para>
- See Scott Ambler's paper at
- <ulink url="http://www.ambysoft.com/mappingObjects.pdf">http://www.ambysoft.com/mappingObjects.pdf</ulink>
- for further discussion of this issue. Of course, the table per class hierarchy strategy
- has much to recommend itself; it is the simplest and most cpu-efficient strategy.
- </para>
</sect1>
--- 1216,1219 ----
Index: persistent_classes.xml
===================================================================
RCS file: /cvsroot/hibernate/Hibernate/doc/reference/src/persistent_classes.xml,v
retrieving revision 1.9
retrieving revision 1.10
diff -C2 -d -r1.9 -r1.10
*** persistent_classes.xml 14 Sep 2002 09:10:54 -0000 1.9
--- persistent_classes.xml 5 Nov 2002 13:40:54 -0000 1.10
***************
*** 164,169 ****
<programlisting><