JPA mapping classes (openjpa)

JPA mapping classes (openjpa) - java

Let's say I have a Question and QuestionHeader class. Question extends QuestionHeader. My mapping looks like this:
<entity class="hr.leads.services.model.jpa.QuestionHeader">
<table name="question" />
<inheritance strategy="SINGLE_TABLE" />
<attributes>
<basic name="description">
<column name="description" length="200" nullable="false" />
</basic>
<basic name="text">
<column name="text" length="300" nullable="false" />
</basic>
<many-to-one name="band"
target-entity="hr.leads.services.model.jpa.Band" fetch="EAGER">
<join-column name="band_id" />
</many-to-one>
</attributes>
</entity>
<entity class="hr.leads.services.model.jpa.Question">
<table name="question" />
<inheritance strategy="SINGLE_TABLE" />
<attributes>
<basic name="visibilityQuestionId">
<column name="visibility_question_id" nullable="true" />
</basic>
<basic name="visibilityQuestionOptionId">
<column name="visibility_question_option_id"
nullable="true" />
</basic>
<many-to-one name="questionType"
target-entity="hr.leads.services.model.jpa.QuestionType"
fetch="EAGER">
<join-column name="question_type_id" />
</many-to-one>
<one-to-many name="options"
target-entity="hr.leads.services.model.jpa.QuestionOption"
fetch="EAGER" mapped-by="question">
<cascade>
<cascade-all />
</cascade>
</one-to-many>
</attributes>
</entity>
The problem is, when I try to add the entity, here is the SQL that gets generated:
INSERT INTO question (name, display_order, description, text, DTYPE, band_id, visibility_question_id, visibility_question_option_id, question_type_id)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?) [params=(String) q1, (int) 1, (String) d1, (String) t, (String) QUESTION, (long) 101, (long) 42, (long) 43, (long) 101]}
It's putting DTYPE as a column name, and I don't want it to do that! How can I prevent it? I think this is the discriminator value, but I don't want that in my insert statement.

When using the SINGLE_TABLE strategy the discriminator column is needed to determine which subtype a entity belongs to. It's possible to rename and decide which value is stored on a per class basis.
If you are not happy with this you two other strategies to choose from.
Table per Class
Join
Please refer to the documentation for more information.

Related

Hibernate (XML mapping) insert fail

I'm trying to insert a new register but when Hibernate creates the insert it doesn't put the FK value.
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="ar.com.grupo1.entity.Turno" table="Turno">
<id name="numeroTurno" type="int">
<column name="Id_Turno" />
<generator class="identity" />
</id>
<property name="nombrePaciente" type="string">
<column name="Nombre" length="60" not-null="true" />
</property>
<property name="apellidoPaciente" type="string">
<column name="Apellido" length="60" not-null="true" />
</property>
<property name="planMedico" type="string">
<column name="PlanMedico" length="30" not-null="true" />
</property>
<property name="fechaLlegada" type="string">
<column name="FechaHoraLlegada" length="60" />
</property>
<property name="fechaAtencion" type="string">
<column name="FechaHoraAtencion" length="60" />
</property>
<property name="importe" type="float">
<column name="Importe" />
</property>
<property name="observaciones" type="string">
<column name="Observaciones" length="250" />
</property>
<one-to-one name="prestador" class="ar.com.grupo1.entity.Prestador"></one-to-one>
<one-to-one name="practica" class="ar.com.grupo1.entity.Practica"></one-to-one>
<one-to-one name="socio" class="ar.com.grupo1.entity.Socio" constrained="true"></one-to-one>
</class>
</hibernate-mapping>
On the insert is there isn't the Id_Socio value.
INFO [STDOUT] Hibernate: insert into Turno (Nombre,
Apellido, PlanMedico, FechaHoraLlegada, FechaHoraAtencion, Importe,
Observaciones) values (?, ?, ?, ?, ?, ?, ?)
WARN [JDBCExceptionReporter] SQL Error: 515, SQLState: 23000
ERROR [JDBCExceptionReporter] Værdien NULL kan ikke indsættes i
kolonnen 'Id_Socio', tabellen 'grupo1.dbo.Turno'. Kolonnen tillader
ikke null-værdier. INSERT kan ikke udføres.
UPDATE
I've already checked that the Socio's, Practica's, and Prestador's ID exists in the database.
I'm giving to Turnos all these classes as attributes, it gets them correctly but at the time it does the Insert operation, is not inserting the FK values.

Hibernate Mapping - Join of two table to one flat class

I have two tables: patient_data and patient_diagnosis
Patient_data contains personal data of patient like: pid (pkey), gender, birth_date
patient_diagnosis contains the diagnosis data of the registered patients. It has fields like: record_id (pkey), pid (fkey to patient_data(pid)), diagnosis_date and other related fields.
Now, I want to join these two tables on pid and have all these fields in a single type of object.
Here is the mapping file:
<hibernate-mapping>
<class catalog="emr" name="in.Models.Emr" table="patient_diagnosis">
<id name="recordid" type="long">
<column name="record_id"/>
</id>
<property name="diagnosisDate" type="timestamp">
<column length="19" name="diagnosis_date" not-null="true"/>
</property>
<property name="snomedTermPrimary" type="long">
<column name="snomed_term_primary" not-null="true" />
</property>
<property name="snomedTermSecondary" type="string">
<column name="snomed_term_secondary" />
</property>
<property name="episodeNo" type="long">
<column name="episode_no" not-null="true" />
</property>
<property name="pid" type="long">
<column name="pid" not-null="true" />
</property>
<join table="patient_data">
<key column="pid"/>
<property name="gender" type="string">
<column name="gender" not-null="true"/>
</property>
<property name="birthDate" type="timestamp">
<column length="19" name="birth_date" not-null="true"/>
</property>
</join>
</class>
</hibernate-mapping>
But, the join applies on patient_diagnosis.record_id = patient_data.pid instead of patient_diagnosis.pid = patient_data.pid i.e. HQL applies on primary key of first table with mentioned column from second table.
Please provide the solution so that join can be applied on mentioned column from first with mentioned column from second table. Or is there another way out?
Please note that in case I didn't create classes for patient_data or patient_diagnosis. But, just Emr class having combination of fields of these tables is created.

Try giving foreign key
<id name="pid" type="java.lang.Long">
<column name="pid" />
<generator class="foreign">
<param name="property">patient_data</param>
</generator>
</id>
I am not sure but maybe this should work.
And
<one-to-one name="patient_data" class="in.Models.Emr"
cascade="save-update"></one-to-one>
Similarly in Join class
<one-to-one name="patient_diagnosis" class="in.Models.Emr"
cascade="save-update"></one-to-one>
I hope this helps you.

Hibernate insert query

During insertion in hibernate query i'm passing some fields as table class objects which i've mapped to corresponding tables, The query works fine but the query is becoming too large because each of these mapped objects are getting updated individually to their corresponding tables.
Can anyone please tell me whether this is the correct way of insertion and also why i'm getting those update queries.
Hibernate: insert into ortms.tool_modified_his_tbl (tool_desc, old_tool_desc, connec1, old_connec1, connec2, old_connec2, landed_cost, old_landed_cost, acqui_date, old_acqui_date, manuf_date, old_manuf_date, price_ref, old_price_ref, op_rate_cost, old_op_rate_cost, stb_rate_cost, old_stb_rate_cost, day_rate1_cost, old_day_rate1_cost, day_rate2_cost, old_day_rate2_cost, packermilling_cost, old_packermilling_cost, sale_value, old_sale_value, status, created_date, modified_date, tool_id, tool_modi_reas_id, tool_modi_usr_id, supplier_id, old_supplier_id, tc_status_id, old_tc_status_id, pricing_type_id, old_pricing_type_id, old_ownership_id, ownership_id, unit_id, old_unit_id, branch_id, old_branch_id, reta_tool_choice_id, old_reta_tool_choice_id, non_ser_tol_cho_id, old_non_ser_tol_cho_id, charge_by_id, old_charge_by_id, size_range_id, old_size_range_id, rack_id, old_rack_id) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
Hibernate: update ortms.master2_tool_master set tool_id=?, tool_desc=?, connec1=?, connec2=?, landed_cost=?, acqui_date=?, manuf_date=?, price_ref=?, op_rate_cost=?, stb_rate_cost=?, day_rate1_cost=?, day_rate2_cost=?, packermilling_cost=?, sale_value=?, uploaded_filename=?, uploaded_file=?, status=?, created_date=?, modified_date=?, supplier_id=?, tc_status_id=?, pricing_type_id=?, unit_id=?, reta_tool_choice_id=?, non_ser_tol_cho_id=?, branch_id=?, charge_by_id=?, size_range_id=?, rack_id=?, ownership_id=? where id=?
Hibernate: update ortms.table_users set user_code=?, username=?, password=?, first_name=?, last_name=?, status=?, created_date=?, modified_date=?, dept_id=?, branch_id=? where id=?
Hibernate: update ortms.table_choice_select set choice_name=?, status=?, created_date=?, modified_date=? where id=?
Hibernate: update ortms.master2_toolmast_chargeby set chargeby=?, status=?, created_date=?, modified_date=? where id=?
Hibernate: update ortms.master2_sizerange set size_code=?, size_range=?, status=?, created_date=?, modified_date=?, grp_lev3_id=? where id=?
Hibernate: update ortms.master2_group_level3 set grp_lev3_name=?, grp_lev3_desc=?, created_date=?, modified_date=?, status=?, grp_lev2_id=? where id=?
Hibernate: update ortms.master2_group_level2 set grp_lev2_name=?, grp_lev2_desc=?, created_date=?, modified_date=?, status=?, grp_lev1_id=? where id=?
After calling action: master2.toolmaster.ToolMaster Time taken: 1234 ms
UPDATION 2
ToolModifiedHisTbl.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated Mar 2, 2013 9:29:05 PM by Hibernate Tools 3.2.1.GA -->
<hibernate-mapping>
<class name="mappingfiles.ToolModifiedHisTbl" table="tool_modified_his_tbl" catalog="ortms">
<id name="id" type="java.lang.Integer">
<column name="id" />
<generator class="identity" />
</id>
<property name="toolDesc" type="string">
<column name="tool_desc" length="65535" />
</property>
<property name="oldToolDesc" type="string">
<column name="old_tool_desc" length="65535" />
</property>
<property name="connec1" type="string">
<column name="connec1" length="60" />
</property>
<property name="oldConnec1" type="string">
<column name="old_connec1" length="60" />
</property>
<property name="connec2" type="string">
<column name="connec2" length="60" />
</property>
<property name="oldConnec2" type="string">
<column name="old_connec2" length="60" />
</property>
<property name="landedCost" type="string">
<column name="landed_cost" length="20" />
</property>
<property name="oldLandedCost" type="string">
<column name="old_landed_cost" length="20" />
</property>
<property name="acquiDate" type="date">
<column name="acqui_date" length="10" />
</property>
<property name="oldAcquiDate" type="date">
<column name="old_acqui_date" length="10" />
</property>
<property name="manufDate" type="date">
<column name="manuf_date" length="10" />
</property>
<property name="oldManufDate" type="date">
<column name="old_manuf_date" length="10" />
</property>
<property name="priceRef" type="string">
<column name="price_ref" length="20" />
</property>
<property name="oldPriceRef" type="string">
<column name="old_price_ref" length="20" />
</property>
<property name="opRateCost" type="string">
<column name="op_rate_cost" length="20" />
</property>
<property name="oldOpRateCost" type="string">
<column name="old_op_rate_cost" length="20" />
</property>
<property name="stbRateCost" type="string">
<column name="stb_rate_cost" length="20" />
</property>
<property name="oldStbRateCost" type="string">
<column name="old_stb_rate_cost" length="20" />
</property>
<property name="dayRate1Cost" type="string">
<column name="day_rate1_cost" length="20" />
</property>
<property name="oldDayRate1Cost" type="string">
<column name="old_day_rate1_cost" length="20" />
</property>
<property name="dayRate2Cost" type="string">
<column name="day_rate2_cost" length="20" />
</property>
<property name="oldDayRate2Cost" type="string">
<column name="old_day_rate2_cost" length="20" />
</property>
<property name="packermillingCost" type="string">
<column name="packermilling_cost" length="20" />
</property>
<property name="oldPackermillingCost" type="string">
<column name="old_packermilling_cost" length="20" />
</property>
<property name="saleValue" type="string">
<column name="sale_value" length="20" />
</property>
<property name="oldSaleValue" type="string">
<column name="old_sale_value" length="20" />
</property>
<property name="status" type="string">
<column name="status" length="20" />
</property>
<property name="createdDate" type="timestamp">
<column name="created_date" length="19" />
</property>
<property name="modifiedDate" type="timestamp">
<column name="modified_date" length="19" />
</property>
<many-to-one class="mappingfiles.Master2ToolMaster" unique="true" name="toolId" column="tool_id" cascade="all" />
<many-to-one class="mappingfiles.TableModifiedReason" unique="true" name="toolModiReasId" column="tool_modi_reas_id" cascade="all" />
<many-to-one class="mappingfiles.TableUsers" unique="true" name="toolModiUsrId" column="tool_modi_usr_id" cascade="all" />
<many-to-one class="mappingfiles.TableSupplier" unique="true" name="supplierId" column="supplier_id" cascade="all" />
<many-to-one class="mappingfiles.TableSupplier" unique="true" name="oldSupplierId" column="old_supplier_id" cascade="all" />
<many-to-one class="mappingfiles.TableToolContractStatus" unique="true" name="tcStatusId" column="tc_status_id" cascade="all" />
<many-to-one class="mappingfiles.TableToolContractStatus" unique="true" name="oldTcStatusId" column="old_tc_status_id" cascade="all" />
<many-to-one class="mappingfiles.Master2PriceType" unique="true" name="pricingTypeId" column="pricing_type_id" cascade="all" />
<many-to-one class="mappingfiles.Master2PriceType" unique="true" name="oldPricingTypeId" column="old_pricing_type_id" cascade="all" />
<many-to-one class="mappingfiles.TableOwnership" unique="true" name="oldOwnershipId" column="old_ownership_id" cascade="all" />
<many-to-one class="mappingfiles.TableOwnership" unique="true" name="ownershipId" column="ownership_id" cascade="all" />
<many-to-one class="mappingfiles.Master2UnitMaster" unique="true" name="unitId" column="unit_id" cascade="all" />
<many-to-one class="mappingfiles.Master2UnitMaster" unique="true" name="oldUnitId" column="old_unit_id" cascade="all" />
<many-to-one class="mappingfiles.TableBranchesCompany" unique="true" name="branchId" column="branch_id" cascade="all" />
<many-to-one class="mappingfiles.TableBranchesCompany" unique="true" name="oldBranchId" column="old_branch_id" cascade="all" />
<many-to-one class="mappingfiles.TableChoiceSelect" unique="true" name="retaToolChoiceId" column="reta_tool_choice_id" cascade="all" />
<many-to-one class="mappingfiles.TableChoiceSelect" unique="true" name="oldRetaToolChoiceId" column="old_reta_tool_choice_id" cascade="all" />
<many-to-one class="mappingfiles.TableChoiceSelect" unique="true" name="nonSerTolChoId" column="non_ser_tol_cho_id" cascade="all" />
<many-to-one class="mappingfiles.TableChoiceSelect" unique="true" name="oldNonSerTolChoId" column="old_non_ser_tol_cho_id" cascade="all" />
<many-to-one class="mappingfiles.Master2ToolmastChargeby" unique="true" name="chargeById" column="charge_by_id" cascade="all" />
<many-to-one class="mappingfiles.Master2ToolmastChargeby" unique="true" name="oldChargeById" column="old_charge_by_id" cascade="all" />
<many-to-one class="mappingfiles.Master2Sizerange" unique="true" name="sizeRangeId" column="size_range_id" cascade="all" />
<many-to-one class="mappingfiles.Master2Sizerange" unique="true" name="oldSizeRangeId" column="old_size_range_id" cascade="all" />
<many-to-one class="mappingfiles.Master2Racks" unique="true" name="rackId" column="rack_id" cascade="all" />
<many-to-one class="mappingfiles.Master2Racks" unique="true" name="oldRackId" column="old_rack_id" cascade="all" />
</class>
</hibernate-mapping>
TableUsers.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated Jan 13, 2013 4:26:04 PM by Hibernate Tools 3.2.1.GA -->
<hibernate-mapping>
<class name="mappingfiles.TableUsers" table="table_users" catalog="ortms">
<id name="id" type="java.lang.Integer">
<column name="id" />
<generator class="identity" />
</id>
<property name="userCode" type="string">
<column name="user_code" length="60" />
</property>
<property name="username" type="string">
<column name="username" length="50" />
</property>
<property name="password" type="string">
<column name="password" length="50" />
</property>
<property name="firstName" type="string">
<column name="first_name" length="60" />
</property>
<property name="lastName" type="string">
<column name="last_name" length="60" />
</property>
<property name="status" type="string">
<column name="status" length="20" />
</property>
<property name="createdDate" type="timestamp">
<column name="created_date" length="19" />
</property>
<property name="modifiedDate" type="timestamp">
<column name="modified_date" length="19" />
</property>
<many-to-one class="mappingfiles.TableDepartments" unique="true" name="deptId" column="dept_id" cascade="all" />
<many-to-one class="mappingfiles.TableBranchesCompany" unique="true" name="branchId" column="branch_id" cascade="all" />
</class>
</hibernate-mapping>
UPDATION 3
i've removed cascade="all" attribute from all mappings....now i'm getting one update rest all clear
Hibernate: insert into ortms.tool_modified_his_tbl (tool_desc, old_tool_desc, connec1, old_connec1, connec2, old_connec2, landed_cost, old_landed_cost, acqui_date, old_acqui_date, manuf_date, old_manuf_date, price_ref, old_price_ref, op_rate_cost, old_op_rate_cost, stb_rate_cost, old_stb_rate_cost, day_rate1_cost, old_day_rate1_cost, day_rate2_cost, old_day_rate2_cost, packermilling_cost, old_packermilling_cost, sale_value, old_sale_value, status, created_date, modified_date, tool_id, tool_modi_reas_id, tool_modi_usr_id, supplier_id, old_supplier_id, tc_status_id, old_tc_status_id, pricing_type_id, old_pricing_type_id, old_ownership_id, ownership_id, unit_id, old_unit_id, branch_id, old_branch_id, reta_tool_choice_id, old_reta_tool_choice_id, non_ser_tol_cho_id, old_non_ser_tol_cho_id, charge_by_id, old_charge_by_id, size_range_id, old_size_range_id, rack_id, old_rack_id) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
Hibernate: update ortms.master2_tool_master set tool_id=?, tool_desc=?, connec1=?, connec2=?, landed_cost=?, acqui_date=?, manuf_date=?, price_ref=?, op_rate_cost=?, stb_rate_cost=?, day_rate1_cost=?, day_rate2_cost=?, packermilling_cost=?, sale_value=?, uploaded_filename=?, uploaded_file=?, status=?, created_date=?, modified_date=?, supplier_id=?, tc_status_id=?, pricing_type_id=?, unit_id=?, reta_tool_choice_id=?, non_ser_tol_cho_id=?, branch_id=?, charge_by_id=?, size_range_id=?, rack_id=?, ownership_id=? where id=?

The unwanted updates come from the "cascade all" settings. You may want to configure it properly according to your needs. For example, have a look here: http://www.mkyong.com/hibernate/hibernate-cascade-example-save-update-delete-and-delete-orphan/

Use dynamic-insert=true and dynamic-update=true at class level
After this your query will be short. It will insert and update only the specified not null values.

Insert into join table in many-to-many relationship

Problem #1:
I have three tables; User, UserRole, and UserRoleRelationships (join table). The UserRole table contain all the user roles which I want to associate with the user. When I insert a new user I want to add a new user and add a new association in the join table. Now, when I'm running the query for inserting a new user:
IWUser iwUser = new IWUser();
iwUser.setUsername("username");
iwUser.setFullName("fullName");
iwUser.setEmail("email");
iwUser.setPassword("password");
iwUser.setPrivatephone("55555");
iwUser.setWorkphone("777");
Set<IWUserRole> roleList = new HashSet<IWUserRole>();
IWUserRole iwUserRole = new IWUserRole();
iwUserRole.setRole("ROLE_USER");
roleList.add(iwUserRole);
iwUser.setUserRole(roleList);
iwUserManagementService.saveOrUpdate(iwUser);
hibernate is running the following queries:
Hibernate: insert into dbo.Users (Username, Password, Email, Workphone, Privatephone, FullName) values (?, ?, ?, ?, ?, ?)
Hibernate: insert into dbo.UserRoles (Role) values (?)
Hibernate: insert into UserRoleRelationships (UserId, RoleId) values (?, ?)
My hibernate mapping looks like:
IWUser.hbm.xml:
<hibernate-mapping>
<class name="domain.IWUser" schema="dbo" table="Users">
<id name="userId" type="int">
<column name="UserId"/>
<generator class="native"/>
</id>
<property name="username" type="string">
<column name="Username" not-null="true"/>
</property>
<property name="password" type="string">
<column name="Password" not-null="true"/>
</property>
<property name="email" type="string">
<column name="Email" not-null="false"/>
</property>
<property name="workphone" type="string">
<column name="Workphone" not-null="false"/>
</property>
<property name="privatephone" type="string">
<column name="Privatephone" not-null="false"/>
</property>
<property name="fullName" type="string">
<column name="FullName" not-null="false"/>
</property>
<set cascade="all" inverse="false" name="userRole" table="UserRoleRelationships" lazy="true" >
<key>
<column name="UserId"/>
</key>
<many-to-many class="domain.IWUserRole" column="RoleId"/>
</set>
</class>
</hibernate-mapping>
IWUserRole.hbm.xml:
<hibernate-mapping>
<class name="domain.IWUserRole" schema="dbo" table="UserRoles">
<id name="roleId" type="int">
<column name="RoleId"/>
<generator class="native"/>
</id>
<property name="role" type="string">
<column name="Role" not-null="true"/>
</property>
<set cascade="all" inverse="false" name="user" table="UserRoleRelationships" lazy="true">
<key>
<column name="RoleId"/>
</key>
<many-to-many class="domain.IWUser" column="UserId"/>
</set>
</class>
</hibernate-mapping>
How can I get hibernate to save the new user with an existing user role in the join table?
Problem #2:
When I update the user, hibernate delete the relations in the join table. How can I avoid this?

How can I get hibernate to save the new user with an existing user role in the join table?
Retrieve the user role entity and put that into the list instead of always creating a new one.
I mean this part:
IWUserRole iwUserRole = new IWUserRole();
iwUserRole.setRole("ROLE_USER");
Instead, you'd issue a query like select r from IWUserRole where r.role = 'ROLE_USER'

How to #AttributeOverride of column names using xml configuration instead of JPA Anotations

I want to override column names in by subclass using xml.
i know this can be done using #AttributeOverride JPA Anotations but want to achieve the same using XML Configuration ?

You can use the embedded and attribute-override elements.
See Chapter 3. Overriding metadata through XML/3.1.3. Property level metadata.
An example from this document:
<attributes>
<id name="id">
<column name="fld_id"/>
<generated-value generator="generator" strategy="SEQUENCE"/>
<temporal>DATE</temporal>
<sequence-generator name="generator" sequence-name="seq"/>
</id>
<version name="version"/>
<embedded name="embeddedObject">
<attribute-override name"subproperty">
<column name="my_column"/>
</attribute-override>
</embedded>
<basic name="status" optional="false">
<enumerated>STRING</enumerated>
</basic>
<basic name="serial" optional="true">
<column name="serialbytes"/>
<lob/>
</basic>
<basic name="terminusTime" fetch="LAZY">
<temporal>TIMESTAMP</temporal>
</basic>
</attributes>

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How to #AttributeOverride of column names using xml configuration instead of JPA Anotations

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