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  • Advantage of Hibernate over JDBC
  • Hibernate Setup with an web Application
  • First Hibernate Application
  • Hibernate mapping with Database TABLE
  • Hibernate Data Type-Java Data Type - SQL Data Type mapping
  • One to Many Relation in Hibernate
  • One to Many Relation in Hibernate bi-directional
  • Many to Many Relation in Hibernate
  • HQL: The Hibernate Query Language
  • Criteria Queries
  • Criteria Queries : Equal (eq), Not Equal(ne), Less than (le), greater than (gt),greater than or equal(ge) and Ordering the results
  • Criteria Queries: And OR conditions
  • Hibernate generator to generate id (primary key)
  • prevent concurrent update in Hibernate,slate object updatation in Hibernate,version checking in Hibernate


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  • Struts Tutorial - Struts Setup- First Struts Action class setup
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  • Hibernate Tutorial Step by Step -- Code Examples

    One to Many : Uni-Directional Relation in Hibernate

    There are two table WRITER and STORY. One writer can write multiple stories. So the relation is one-to-many uni-directional.

    Step 1. create a table name WRITER and STORY in your database

    create table WRITER (
    ID number, //PRIMARY KEY
    NAME varchar
    create table STORY (
    ID number,
    INFO varchar,
    PARENT_ID number // forign key - relate to ID Coulmn of WRITER.

    Step 2. Mapping writer.hbm.xml- Which maps to WRITER TABLE.

    <?xml version="1.0"?>
    <!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    <class name="Writer" table="WRITER">
    <id name="id" column="ID" type="int" unsaved-value="0">
    <generator class="increment"/>
    <bag name="stories" cascade="all">
    <key column="parent_id"/>
    <one-to-many class="Story"/>
    <property name="name" column="NAME" type="string"/>

    Step 3. Mapping story.hbm.xml- Which maps to STORY TABLE.

    <?xml version="1.0"?>
    <!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    <class name="Story" table="story">
    <id name="id" column="ID" type="int" unsaved-value="0">
    <generator class="increment"/>
    <property name="info" column="INFO" type="string"/>

    Step 4. Create bean class.

    public class Writer {
    private int id;
    private String name;
    private List stories;
    public void setId(int i) {
    id = i;
    public int getId() {
    return id;
    public void setName(String n) {
    name = n;
    public String getName() {
    return name;
    public void setStories(List l) {
    stories = l;
    public List getStories() {
    return stories;

    Step 5. Create bean class.

    public class Story {
    private int id;
    private String info;
    public Story(){
    public Story(String info) { = info;
    public void setId(int i) {
    id = i;
    public int getId() {
    return id;
    public void setInfo(String n) {
    info = n;
    public String getInfo() {
    return info;

    Step 6. add writer.hbm.xml and story.hbm.xml into hibernate.cfg.xml

    <?xml version='1.0' encoding='utf-8'?>
    <lt;!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    <!-- Database connection settings -->
    <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="connection.url">jdbc:mysql://localhost:3306/techfaqdb</property>
    <property name="connection.username">techfaq</property>
    <property name="connection.password">techfaq</property>
    <!-- JDBC connection pool (use the built-in) -->
    <property name="hibernate.c3p0.min_size">1</property>
    <property name="hibernate.c3p0.max_size">4</property>
    <property name="hibernate.c3p0.timeout">1800</property>
    <property name="hibernate.c3p0.max_statements">50</property>
    <!-- MySQL dialect//different for different Database -->
    <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
    <!-- Enable Hibernate's automatic session context management -->
    <property name="current_session_context_class">thread</property>
    <!-- Disable the second-level cache -->
    <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
    <!-- Echo all executed SQL to stdout -->
    <property name="show_sql">true</property>
    <property name="">update</property>
    <mapping resource="story.hbm.xml"/>
    <mapping resource="writer.hbm.xml"/>

    Here is the code : how to save

    Save Example ..
    Writer wr = new Writer();
    ArrayList list = new ArrayList();
    list.add(new Story("Story Name 1"));
    list.add(new Story("Story Name 2"));
    Transaction transaction = null;
    try {
    transaction = session.beginTransaction();;
    } catch (Exception e) {
    if (transaction != null) {
    throw e;
    } finally {

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