Child object is not saving.

[pankaj semwal]

I have a screen where parent table has two child and having one to one mapping between parent and child's.

I want if parent is saved then child should automatically saved.But this not happening.
Where Student is parent and school and scast are its child.

Please help me....


Below are my HBM files.

<?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">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.Hibernate.Student" table="STUDENT" schema="SYSTEM">
        <id name="studentId" type="java.lang.Integer">
            <column name="STUDENT_ID" precision="22" scale="0" />
            <generator class="sequence" >
            <param name="sequence">STUDENT_SEQ</param>
            </generator>
        </id>
        <property name="studentName" type="java.lang.String">
            <column name="STUDENT_NAME" length="100" not-null="true" />
        </property>
        <property name="studentAddress" type="java.lang.String">
            <column name="STUDENT_ADDRESS" length="500" not-null="true" />
        </property>
        <property name="studentDob" type="java.lang.String">
            <column name="STUDENT_DOB" length="100" not-null="true" />
        </property>
         
    </class>
</hibernate-mapping>

<?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">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.Hibernate.School" table="SCHOOL"  >
        <id name="schoolId" type="java.lang.Integer">
            <column name="SCHOOL_ID"   />  
            <generator class="sequence" > <param name="sequence">SCHOOL_SEQ</param></generator>
        </id>
        <many-to-one name="student" class="com.Hibernate.Student" fetch="select"  cascade="all"  >
            <column name="SCH_STU_ID" precision="22" scale="0"   unique="true"/>
        </many-to-one>
        <property name="schoolName" type="java.lang.String">
            <column name="SCHOOL_NAME" length="100"   />
        </property>
        <property name="schoolAddress" type="java.lang.String">
            <column name="SCHOOL_ADDRESS" length="100"   />
        </property>
         
        
    </class>
</hibernate-mapping>

<?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">
	<!--
		Mapping file autogenerated by MyEclipse Persistence Tools
	-->
<hibernate-mapping>
	<class name="com.Hibernate.StudentCast" table="SCAST"  schema="SYSTEM">
		<id name="studentCastId" type="java.lang.Integer">
			<column name="STUDENT_CAST_ID" />
			<generator class="sequence">
				<param name="sequence">STUDENT_CAST_SEQ</param>
			</generator>
		</id>
		 <many-to-one name="student"  class="com.Hibernate.Student" fetch="select" cascade="all"   >
        <column name="STUDENT_ID" precision="22" scale="0"   unique="true"/>
        </many-to-one>
	</class>	
</hibernate-mapping>

Java code

package com.Hibernate;
	
	import java.io.Serializable;

import org.hibernate.Transaction;
	
import org.hibernate.Session;
	
	public class Client {
	
		public static void main(String[] args) {
	
			Session session = HibernateSessionFactory.getSession();
			Transaction transaction = session.beginTransaction();
	
		 	Student student = new Student();
			student.setStudentName("Pankaj");
			student.setStudentAddress("South Delhi");
			student.setStudentDob("18/12/1982");
	
			School school = new School();
			school.setSchoolName("KV");
			school.setSchoolAddress("South School");
	
			StudentCast studentCast = new StudentCast();
	
			//studentCast.setStudent(student);
			
			student.setSchool(school);
			 student.setStudentCast(studentCast);
	
			school.setStudent(student);
	        
			session.save(school);
			transaction.commit();
	
		}
	
	}

[Sridhar Santhanakrishnan]

How about saving the school object instead of student?