added new examples

git-svn-id: https://svn.jboss.org/repos/hibernate/trunk/Hibernate3/doc@5675 1b8cb986-b30d-0410-93ca-fae66ebed9b2
This commit is contained in:
Gavin King 2005-02-11 10:59:38 +00:00
parent ce8bcee0f6
commit 3e8ea3cdac
1 changed files with 264 additions and 0 deletions

View File

@ -347,6 +347,270 @@ alter table line_items
add constraint line_itemsFK1 foreign key (order_id) references orders]]></programlisting>
</sect1>
<sect1 id="misc">
<title>Miscellaneous example mappings</title>
<para>
These examples are all taken from the Hibernate test suite. You
will find many other useful example mappings there.
</para>
<para>TODO: put words around this stuff</para>
<sect2>
<title>"Typed" one-to-one association</title>
<programlisting><![CDATA[<class name="Person">
<id name="name"/>
<one-to-one name="address" cascade="all" constrained="false">
<formula>name</formula>
<formula>'HOME'</formula>
</one-to-one>
<one-to-one name="mailingAddress" constrained="false">
<formula>name</formula>
<formula>'MAILING'</formula>
</one-to-one>
</class>
<class name="Address" batch-size="2"
check="addressType in ('MAILING', 'HOME', 'BUSINESS')">
<composite-id>
<key-many-to-one name="person"
column="personName"/>
<key-property name="type"
column="addressType"/>
</composite-id>
<property name="street" type="text"/>
<property name="state"/>
<property name="zip"/>
</class>]]></programlisting>
</sect2>
<sect2>
<title>Composite key example</title>
<programlisting><![CDATA[<class name="Customer">
<id name="customerId"
length="10">
<generator class="assigned"/>
</id>
<property name="name" not-null="true" length="100"/>
<property name="address" not-null="true" length="200"/>
<list name="orders"
inverse="true"
cascade="save-update">
<key column="customerId"/>
<index column="orderNumber"/>
<one-to-many class="Order"/>
</list>
</class>
<class name="Order" table="CustomerOrder" lazy="true">
<synchronize table="LineItem"/>
<synchronize table="Product"/>
<composite-id name="id"
class="Order$Id">
<key-property name="customerId" length="10"/>
<key-property name="orderNumber"/>
</composite-id>
<property name="orderDate"
type="calendar_date"
not-null="true"/>
<property name="total">
<formula>
( select sum(li.quantity*p.price)
from LineItem li, Product p
where li.productId = p.productId
and li.customerId = customerId
and li.orderNumber = orderNumber )
</formula>
</property>
<many-to-one name="customer"
column="customerId"
insert="false"
update="false"
not-null="true"/>
<bag name="lineItems"
fetch="join"
inverse="true"
cascade="save-update">
<key>
<column name="customerId"/>
<column name="orderNumber"/>
</key>
<one-to-many class="LineItem"/>
</bag>
</class>
<class name="LineItem">
<composite-id name="id"
class="LineItem$Id">
<key-property name="customerId" length="10"/>
<key-property name="orderNumber"/>
<key-property name="productId" length="10"/>
</composite-id>
<property name="quantity"/>
<many-to-one name="order"
insert="false"
update="false"
not-null="true">
<column name="customerId"/>
<column name="orderNumber"/>
</many-to-one>
<many-to-one name="product"
insert="false"
update="false"
not-null="true"
column="productId"/>
</class>
<class name="Product">
<synchronize table="LineItem"/>
<id name="productId"
length="10">
<generator class="assigned"/>
</id>
<property name="description"
not-null="true"
length="200"/>
<property name="price" length="3"/>
<property name="numberAvailable"/>
<property name="numberOrdered">
<formula>
( select sum(li.quantity)
from LineItem li
where li.productId = productId )
</formula>
</property>
</class>]]></programlisting>
</sect2>
<sect2>
<title>Content based discrimination</title>
<programlisting><![CDATA[<class name="Person"
discriminator-value="P">
<id name="id"
column="person_id"
unsaved-value="0">
<generator class="native"/>
</id>
<discriminator
type="character">
<formula>
case
when title is not null then 'E'
when salesperson is not null then 'C'
else 'P'
end
</formula>
</discriminator>
<property name="name"
not-null="true"
length="80"/>
<property name="sex"
not-null="true"
update="false"/>
<component name="address">
<property name="address"/>
<property name="zip"/>
<property name="country"/>
</component>
<subclass name="Employee"
discriminator-value="E">
<property name="title"
length="20"/>
<property name="salary"/>
<many-to-one name="manager"/>
</subclass>
<subclass name="Customer"
discriminator-value="C">
<property name="comments"/>
<many-to-one name="salesperson"/>
</subclass>
</class>]]></programlisting>
</sect2>
<sect2>
<title>Associations on alternate keys</title>
<programlisting><![CDATA[<class name="Person">
<id name="id">
<generator class="hilo"/>
</id>
<property name="name" length="100"/>
<one-to-one name="address"
property-ref="person"
cascade="all"
fetch="join"/>
<set name="accounts"
inverse="true">
<key column="userId"
property-ref="userId"/>
<one-to-many class="Account"/>
</set>
<property name="userId" length="8"/>
</class>
<class name="Address">
<id name="id">
<generator class="hilo"/>
</id>
<property name="address" length="300"/>
<property name="zip" length="5"/>
<property name="country" length="25"/>
<many-to-one name="person" unique="true" not-null="true"/>
</class>
<class name="Account">
<id name="accountId" length="32">
<generator class="uuid.hex"/>
</id>
<many-to-one name="user"
column="userId"
property-ref="userId"/>
<property name="type" not-null="true"/>
</class>]]></programlisting>
</sect2>
</sect1>
</chapter>