[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3579) Support for PostgreSQL UUID data type
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http://opensource.atlassian.com/projects/hibernate/browse/HHH-3579?page=c...
]
Batbayar Bazarragchaa commented on HHH-3579:
--------------------------------------------
You said create custom data type and map it to java.util.UUID.
Please help me to solve this.
My mapping file:
[code]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD
3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated Feb 18, 2009 10:11:16 PM by Hibernate Tools 3.2.1.GA -->
<hibernate-mapping>
<class name="persistence.MessageBuffer" schema="public"
table="message_buffer">
<id name="timestamp" type="timestamp">
<column length="35" name="timestamp"/>
<generator class="assigned"/>
</id>
<property name="message" type="string">
<column name="message"/>
</property>
<property name="routingKey" type="string">
<column name="routing_key"/>
</property>
<property name="ok" type="java.lang.Boolean">
<column name="ok"/>
</property>
<property name="uuid" sql-type="uuid">
<column name="uuid"/>
</property>
<property name="send" type="timestamp">
<column length="35" name="send"/>
</property>
</class>
</hibernate-mapping>
[/code]
How would be my class file?
[code]
import java.io.Serializable;
public class PosgtreUUID implements Serializable {
}
[/code]
Support for PostgreSQL UUID data type
-------------------------------------
Key: HHH-3579
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3579
Project: Hibernate Core
Issue Type: New Feature
Components: core
Affects Versions: 3.3.1
Reporter: Olivier Van Acker
PostgreSQL has since version 8.3 UUID as data type nativly supported in the database.
The only way to get this to work in Hibernate is to add <column name="id"
sql-type="uuid"/> to your mappings file (or @columnDefinition via
annotations)
and create your own custom usertype (e.g. public class UUIDUserType implements UserType,
Serializable {..} ) and map this to java.util.UUID
worth mentioning is that java.util.UUID is only introduced in java 1.5 so there might be
a backwards compatibility problem
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