i got 3 tables named, address, lookup_code,state

CREATE TABLE `address` (
`OID` varchar(35) NOT NULL default '',
`ADDRESS_TYPE_OID` varchar(35) default NULL,
`ADDRESS_LINE_1` varchar(25) NOT NULL default '',
`ADDRESS_LINE_2` varchar(25) default NULL,
`STREET_TYPE_OID` varchar(35) default NULL,
`UNIT_NUMBER` varchar(15) default NULL,
`CITY` varchar(25) NOT NULL default '',
`STATE_OID` varchar(35) NOT NULL default '',
`ZIP` varchar(10) NOT NULL default '',
`CREATE_DTM` datetime NOT NULL default '0000-00-00 00:00:00',
`UPDATE_DTM` datetime NOT NULL default '0000-00-00 00:00:00',
`CREATED_BY` varchar(35) NOT NULL default '',
`UPDATED_BY` varchar(35) NOT NULL default '',
PRIMARY KEY (`OID`),
UNIQUE KEY `XPKADDRESS` (`OID`),
KEY `XIF89ADDRESS` (`ADDRESS_TYPE_OID`),
KEY `XIF90ADDRESS` (`STREET_TYPE_OID`),
KEY `XIF91ADDRESS` (`STATE_OID`),
CONSTRAINT `0_222` FOREIGN KEY (`STATE_OID`) REFERENCES `state` (`OID`) ON DELETE NO ACTION ON UPDATE NO ACTION,
CONSTRAINT `0_224` FOREIGN KEY (`STREET_TYPE_OID`) REFERENCES `lookup_code` (`OID`) ON DELETE NO ACTION ON UPDATE NO ACTION,
CONSTRAINT `0_226` FOREIGN KEY (`ADDRESS_TYPE_OID`) REFERENCES `lookup_code` (`OID`) ON DELETE NO ACTION ON UPDATE NO ACTION
) TYPE=InnoDB;





CREATE TABLE `lookup_code` (
`OID` varchar(35) NOT NULL default '',
`TYPE` varchar(15) NOT NULL default '',
`LABEL` varchar(255) NOT NULL default '',
`WEIGHT` int(11) default NULL,
`VALUE` float default NULL,
PRIMARY KEY (`OID`),
UNIQUE KEY `XPKLOOKUP_CODE` (`OID`)
) TYPE=InnoDB;




CREATE TABLE `state` (
`OID` varchar(35) NOT NULL default '',
`STATE_CD` char(2) NOT NULL default '',
`STATE_NAME` varchar(35) NOT NULL default '',
`CREATE_DTM` datetime NOT NULL default '0000-00-00 00:00:00',
`UPDATE_DTM` datetime NOT NULL default '0000-00-00 00:00:00',
`CREATED_BY` varchar(35) NOT NULL default '',
`UPDATED_BY` varchar(35) NOT NULL default '',
PRIMARY KEY (`OID`),
UNIQUE KEY `XPKSTATE` (`OID`)
) TYPE=InnoDB;



and here are my hbm files
AddressVO.hbm.xml


<class name="com.test.vo.AddressVO" table="address">
<id name="oid" type="string" column="OID" >
<generator class="assigned" />
</id>

<property name="addressTypeOid" type="string" column="ADDRESS_TYPE_OID" length="35" />
<property name="addressLine1" type="string" column="ADDRESS_LINE_1" not-null="true" length="25" />
<property name="addressLine2" type="string" column="ADDRESS_LINE_2" length="25" />
<property name="streetTypeOid" type="string" column="STREET_TYPE_OID" length="35" />
<property name="unitNumber" type="string" column="UNIT_NUMBER" length="15" />
<property name="city" type="string" column="CITY" not-null="true" length="25" />
<property name="stateOid" type="string" column="STATE_OID" not-null="true" length="35" />-->
<property name="zip" type="string" column="ZIP" not-null="true" length="10" />
<property name="createDtm" type="timestamp" column="CREATE_DTM" not-null="true" length="19" />
<property name="updateDtm" type="timestamp" column="UPDATE_DTM" not-null="true" length="19" />
<property name="createdBy" type="string" column="CREATED_BY" not-null="true" length="35" />
<property name="updatedBy" type="string" column="UPDATED_BY" not-null="true" length="35" />

<!-- associations -->
<many-to-one name="addressTypeOid" class="com.test.vo.LookupCodeBean" column="ADDRESS_TYPE_OID" update="false" insert="false" />-
<many-to-one name="streetTypeOid" class="com.test.vo.LookupCodeBean" ccolumn="STREET_TYPE_OID" update="false" insert="false" />-
<many-to-one name="stateOid" class="com.test.vo.StateVO" column name="oid" not-null="true" update="false" insert="false" />



</class>
</hibernate-mapping>



LookupCodeBean.hbm.xml


<hibernate-mapping>

<class name="com.test.vo.LookupCodeBean" table="lookup_code">

<id name="oid" type="string" column="OID" length="32" >
<generator class="assigned"/>
</id>
<property name="label" column="TYPE" type="string" length="15" not-null="true" />
<property name="type" column="LABEL" type="string" length="255" not-null="true" />
<property name="weight" column="WEIGHT" type="integer" length="11" not-null="false" />
<property name="value" column="VALUE" type="double" length="12" not-null="false" />

</class>
</hibernate-mapping>



StateVO.hbm.xml
<hibernate-mapping>


<class name="com.aib.vo.StateVO" table="state">

<id name="oid" type="string" column="OID" >
<generator class="assigned" />
</id>

<property name="stateCd" type="string" column="STATE_CD" not-null="true" length="2" />

<property name="stateName" type="string" column="STATE_NAME" not-null="true" length="35" />

<property name="createDtm" type="timestamp" column="CREATE_DTM" not-null="true" length="19" />

<property name="updateDtm" type="timestamp" column="UPDATE_DTM" not-null="true" length="19" />

<property name="createdBy" type="string" column="CREATED_BY" not-null="true" length="35" />

<property name="updatedBy" type="string" column="UPDATED_BY" not-null="true" length="35" />

<!-- associations -->

</class>
</hibernate-mapping>


when i am trying to insert in to address table using


Transaction tx=null;
Session sess=null;
String addOID="";
sess=getSession();
tx=sess.beginTransaction();
addVO.toValues();
addOID=(String)sess.save(addVO);
sess.flush();
tx.commit();



When i try to insert with all the refernces i get this error


No persister for: java.lang.String

any help.. with this!!![/b]

This mapping

<many-to-one name="addressTypeOid" class="com.test.vo.LookupCodeBean" column="ADDRESS_TYPE_OID" update="false" insert="false" />-

shows that you are probably not aware how Hibernate deals with class associations and you probably have a property named "addressTypeOid" of type "java.lang.String" in your Java class. Hibernate persists associations directly, no need to mess around with identifiers. Read one of the beginner tutorials linked on the website.

i am still getting the same exception. can somebody point out , what exactly the problem is...

Thanks
in advance

The problem is that you don't know how to use Hibernate, basically. Please read one of the tutorials and please post more information if you ask questions, as described here:

http://www.hibernate.org/160.html