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cant get one-to-one reverse engineering to work for me
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created by <a href="http://community.jboss.org/people/pete2k">Pete Pron</a> in <i>JBoss Tools</i> - <a href="http://community.jboss.org/message/559680#559680">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi everyone,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm using the Jboss hibernate tools to reverse engineer an existing database and generating java + hbm.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Currently I'm becoming desperate by trying to resolv an one-to-one mapping. There is always a one-to-many & many-to-one</p><p>generated and I don't know what to do.</p><p>Its fine for me that the tools are trying to create a one-to-many (it could be) but I'm searching for a way to define this relationship as one-to-one.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>First of all:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Its an Oracle 10 Database and Hibernatetools Version: 3.3.0.v20100720-0040-H162-M1</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Detect one-to-one associations is turned on.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Here is the relevant SQL:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-----------------------------------------------------------------------------------------</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>CREATE TABLE EXT_ADDRESS (</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        ID NUMBER(22 , 0) NOT NULL,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        ...</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        <many attributes></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        ..</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        ADDRESS_ID NUMBER(22 , 0) NOT NULL</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    );</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>CREATE TABLE ADDRESS (</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        ID NUMBER(22 , 0) NOT NULL,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        ...</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        <many attributes></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    );</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>ALTER TABLE EXT_ADDRESS ADD CONSTRAINT EXT_ADR_PK PRIMARY KEY (ID);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>ALTER TABLE ADDRESS ADD CONSTRAINT ADR_PK PRIMARY KEY (ID);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>ALTER TABLE EXT_ADDRESS ADD CONSTRAINT EXT_ADR_FK FOREIGN KEY (ADDRESS_ID)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    REFERENCES ADDRESS (ID)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    ON DELETE RESTRICT</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    ON UPDATE CASCADE;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-----------------------------------------------------------------------------------------</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Here what I already tried to do in my hibernate.reveng.xml:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-----------------------------------------------------------------------------------------</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    <table name="EXT_ADDRESS" ></p><p>        <column name="ID" type="long"></column></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        <foreign-key constraint-name="EXT_ADR_FK"></p><p>            <!-- <many-to-one exclude="true"/></p><p>             <set exclude="true" /> --></p><p>             <one-to-one exclude="false"/></p><p>             <inverse-one-to-one exclude="false"/></p><p>        </foreign-key></p><p>    </table>    </p><p>-----------------------------------------------------------------------------------------</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>This doesn't work and there is always a Set of ExtAddress defined in Address. The table definition and the foreign</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>key should be correct. If i uncomment the many-to-one and set with exclude true the set is removed.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Any help is highly appreciated. Thanks</p><p>Pete</p></div>
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