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 Post subject: Using <join> mapping with <sql-query> problem
PostPosted: Tue Dec 20, 2005 9:51 pm 
Newbie

Joined: Mon Jan 03, 2005 4:07 am
Posts: 2
I have a mapping between a few tables to represent a Configuration and a SettingType value stored in a separate table.

The <join> works fine using standard session lookups using the ID but when I try to use a sql-query to load the object with some custom sql it blows up when it tries to bring in the columns from the <join> relationship into the query doing the SELECT.

Do I have to specify *all* the columns in the query instead of using c.*? I hope not because I have situations with tables that contain a lot of columns which could make this difficult. Is there a way to indicate that the sql-query should ignore the <join> element and load it with a separate query like it does when I load the Configuration object with its ID?

Some of the below has been simplfied/sanitized:

Hibernate version:
3.1

Mapping documents:

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">
<hibernate-mapping>
   <class name="com.foo.Configuration"
      table="configuration">

      <id name="id" type="long" column="ID">
         <meta attribute="scope-set">protected</meta>
         <generator class="sequence">
            <param name="sequence">CONFIG_ID_SEQ</param>
         </generator>
      </id>
      <property name="description" type="string" column="DESCRIPTION" />
      <property name="name" type="string" column="STRING" />
      <many-to-one name="org" cascade="save-update"
         class="com.foo.org.Org" column="ORG_ID" />

      <join table="configurationSettings" optional="true">
         <key column="CONFIGURATION_ID" />
         <many-to-one name="settingsOrg" column="ORG_ID"
                            class="com.foo.org.Org" />
         <many-to-one name="configSettingType" column="SETTING_ID"
                     class="com.foo.ConfigurationSettingsType" />
      </join>

   <sql-query name="Configuration.findById">
      <![CDATA[SELECT {c.*}
              FROM configuration {c}
             WHERE c.id = :cid]]>
      <return alias="c" class="com.foo.Configuration" />
   </sql-query>


Full stack trace of any exception that occurs:

java.sql.SQLException: ORA-00904: "C_1_"."SETTING_ID": invalid identifier

at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:589)

Name and version of the database you are using:
Oracle 9i

The generated SQL (show_sql=true):

Hibernate: SELECT c.ID as ID39_0_, c.DESCRIPTION as DESCRIPT3_39_0_, c.NAME as NAME39_0_, c_1_.ORG_ID as ORG2_43_0_, c_1_.SETTING_ID as SETTING3_43_0_
FROM configuration c
WHERE c.id = ?
Code:


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