Tuesday, November 25, 2008

ABOUT HSQLDB AND HOW TO SET UP FOR YOUR PROJECT

This is very light weight database and very useful during project development. You can use any process to connect to this database like simple jdbc code, hibernate or even iBatis.
Please follow these steps:

1. Download the latest version of HSQLDB from here.
2. Choose package hsqldb and click on download lik and choose hsqldb_1_8_0_10.zip (version may be change in your case), size would be approx 3 to 4 MB..
2. Save your local pc any where and unzip say d:\hsqldb_1_8_0_10.
3. Then go to D:\hsqldb_1_8_0_10\hsqldb\demo and double click on runManager.bat
4. You will get new window then no need to any thing except URL. You can give any drive location of your pc like d:\mydatabase and you have to give one database name like demodatabase then your complete URL become jdbc:hsqldb:file:d:\mydatabase\demodatabase

Here is complete info for that window

Type: HSQL Database Engine Standalone
Driver: org.hsqldb.jdbcDriver
URL: jdbc:hsqldb:file:d:\mydatabase\demodatabase
User: sa
password: (Let it be blank)

Click on the OK button.
Here you will get one text box, where you put your SQL command and click on Execute button. For example you can write
create table student (sname varchar(100), roll int); and click on execute button, if you get message update count o means your command executed successfully.
If every thing is ok then you can insert data in that table like
insert into student values ('Binod',110);
insert into student values ('Ambani',120);
insert into student values ('Mittal',110);
insert into student values ('Birla',110);
commit;
and click on execute button.
Now, write sql for see all the data in student table using
select * from student.






Now if you check your d:\mydatabase folder, you will get two file one is demoDatabase.properties and another one is demoDatabase.script. The best thing is here that you can export your database only with these two files. :)

How to use Primary key and Foreign Key in HSQLDB
create table school (id integer primary key, name varchar(100), address varchar(200));
create table student(roll integer primary key, name varchar(200), school_id integer, FOREIGN KEY (school_id) REFERENCES SCHOOL(ID))

How to use HSQLDB using Java jdbc code
1. First of all add the hsqldb.jar (D:\hsqldb_1_8_0_10\hsqldb\lib) in your project class path.
2. Write simple java jdbc code like this say Database.java
import java.io.Reader;
import java.sql.Connection;import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class Database {
Connection connection = null;
public static void main(String[] args) {
Database check = new Database();
check.getConnection();
}
public void getConnection(){
try {
Class.forName("org.hsqldb.jdbcDriver");
String url = "jdbc:hsqldb:file:d:\\mydatabase\\demodatabase";
Connection con = DriverManager.getConnection(url, "sa", "");
Statement stmt = con.createStatement();
ResultSet resultSet = stmt.executeQuery("SELECT * from student");
while( resultSet.next() ) {
String name = resultSet.getString(1);
int roll = resultSet.getInt(2);
System.out.println("Name :: "+name+" ");
System.out.println("Roll :: "+roll);
System.out.println("***************************");
}
stmt.close();
} catch( Exception e ) {
System.out.println(e.getMessage());
e.printStackTrace();
}
}
}

IMP 1:
You can use the normal SQL for data insertion into HSQLD, but at the end of the code you have to use stmt.execute("SHUTDOWN"); Otherwise data would not saved permanently.

IMP 2:
If you are using any web application server for your project and want to use HSQLDB then you have to copy hsqldb.jar in your server respective lib folder. In case of Webshpere Application server or RAD, you have to copy hsqldb.jar to this location C:\Program Files\IBM\Rational\SDP\6.0\runtimes\base_v6\lib (Path may be change in your case).

IMP 3:
Some time you will not get the desired data in database or in application server. Then please close the HSQLDB Console and do your operation in application server. After that you can open HSQLDB console and will get all updated data.

How to use HSQLDB with iBatis

I am giving step by step, it would be very useful for new learner.
Make an folder javasource\src
Put three file in that src
1. SqlMapConfig.xml
2. Student.xml
3. Student.java
4. Database.java

Put these two jar file in that folder (a) ibatis-2.3.0.677.jar (b) hsqldb.jar

SqlMapConfig.xml
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE sqlMapConfig PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-config-2.dtd%22;
<sqlMapConfig>
<settings useStatementNamespaces="true"/>
<transactionManager type="JDBC"> <dataSource type="SIMPLE"> <property name="JDBC.Driver" value="org.hsqldb.jdbcDriver"/> <property name="JDBC.ConnectionURL" value="jdbc:hsqldb:file:c:\\Hsqldb\\demoDatabase"/> <property name="JDBC.Username" value="sa"/> <property name="JDBC.Password" value=""/> <property name="JDBC.DefaultAutoCommit" value="true"/>
</dataSource> </transactionManager>
<sqlMap resource="com//target//Student.xml"/> </sqlMapConfig>





Student.xml

< ?xml version="1.0" encoding="UTF-8"? >
< !DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" http://ibatis.apache.org/dtd/sql-map-2.dtd >
<>
< id="insert" parameterclass="Student">
insert into student values (#sname#, #city#);
< /insert >
< id="getCount" resultclass="Integer">
select count(*) from student;
< /select >
< id="getAll" resultclass="com.target.Student">
select * from student
< /select >
< /sqlMap >

Student.java
public class Student {
private String sname;
private String city;
public String getCity() { return city; }
public void setCity(String city) { this.city = city; }
public String getSname() { return sname; }



public void setSname(String sname) { this.sname = sname; }

public Student() {} public Student(String sname, String city) {
this.sname = sname; this.city = city;
}
}

Database.java
import java.io.Reader;
import java.util.Iterator;
import java.util.List;
import com.ibatis.common.resources.Resources;
import com.ibatis.sqlmap.client.SqlMapClient;
import com.ibatis.sqlmap.client.SqlMapClientBuilder;
public class Database {
public static void main(String[] args) {
Database check = new Database();
check.getDataUsingIbatis();
check.insertDataUsingIbatis();
}
public void getDataUsingIbatis(){
try{
Reader reader = Resources.getResourceAsReader("SqlMapConfig.xml");
SqlMapClient sqlMap = SqlMapClientBuilder.buildSqlMapClient(reader);
List students = (List)sqlMap.queryForList("getAll");
for(Iterator ii=students.iterator();ii.hasNext();){
Student c = (Student)ii.next();
System.out.print("Name :: " + c.getSname()+" ");
System.out.println("City :: " + c.getCity());
}
System.out.println"=======================");
}
catch(Exception e){
System.out.println("SOME PROBLEM :: "+e);
e.printStackTrace();
}
}

public void insertDataUsingIbatis(){
try{
Reader reader = Resources.getResourceAsReader("SqlMapConfig.xml");
SqlMapClient sqlMap = SqlMapClientBuilder.buildSqlMapClient(reader);
System.out.println("*------- Inserting information in Student Table -------*");
Student student=new Student("Binod Suman","UK");
sqlMap.insert("insert",student);
System.out.println("Record Inserted Successfully ");
sqlMap.getDataSource().getConnection().createStatement().execute("SHUTDOWN"); }
catch(Exception e){
System.out.println("SOME PROBLEM :: "+e); e.printStackTrace();
}
}
}





Now compile all java class and run Database.class

Hope you will get your required result. :)

How to use Sequence in HSQLDB

SQL for create sequence:

create sequence seq_account_id as integer start with 1 increment by 1;

Now you can use "NEXT VALUE FOR seq_account_id" for insert next value in any table. Like insert into account values (NEXT VALUE FOR seq_account_id,'Binod', 'USA');

If you want to see the next value from SQL then you have to put one trick here :)

Step 1: First create one dummy table like dual (copy form Oracle :) )

CREATE TABLE dual (test INTEGER NOT NULL);

Step 2: Insert one dummy data INSERT INTO dual VALUES (1);

Step 3: Use this SQL to see the next value of your sequence

select NEXT VALUE FOR seq_account_id FROM dual

How to use the HSQLDB Sequence in iBatis :

<insert id="insertAccount" parameterClass="com.target.Account">
insert into account values (NEXT VALUE FOR seq_account_id,#name#, #city#);
</insert>

You have to only set name and city propert in the Account POJO.

If you want to ues the current account_id value to insert in other table then sequence will not help you like oracle then you have play some game like

< select id="getMaxAccount" resultClass="Integer" >
select max(id) from account;
< /select >

and use this below code in java

int maxID = ((Integer)sqlMap.queryForObject("getMaxAccount")).intValue();

How to save batch data in HSQLDB using iBatis


<insert id="insert_batch_student" parameterClass="java.util.Map">
insert into student values (#sname#, #city#);
</insert>

Java Code

public int insertManyStudent(){

int result=1;

try{

Reader reader = Resources.getResourceAsReader("SqlMapConfig.xml");

SqlMapClient sqlMap = SqlMapClientBuilder.buildSqlMapClient(reader);

sqlMap.startTransaction();

sqlMap.startBatch();

Map map=new HashMap();

map.put("sname","Binod Satyam 1"); map.put("city","USA 1");

sqlMap.insert("insert2",map); map.clear();

map.put("sname","Binod Satyam 2"); map.put("city","USA 2");

sqlMap.insert("insert2",map); map.clear();

map.put("sname","Binod Satyam 3"); map.put("city","USA 3");

sqlMap.insert("insert2",map); map.clear();

map.put("sname","Binod Satyam 4"); map.put("city","USA 4");

sqlMap.insert("insert2",map); map.clear();

int rows=sqlMap.executeBatch();

System.out.println("Total record saved " + rows);

sqlMap.commitTransaction();

sqlMap.getDataSource().getConnection().createStatement().execute("SHUTDOWN");

}catch(Exception e){

System.out.println("SOME PROBLEM :: "+e); e.printStackTrace(); result=0; }

return result;

}

Wait for some thing new in my next blog :)

Monday, November 24, 2008

How to use Local XML using HTTPSERVICE for Adobe Flex

I have post this information on my another blog : http://binodsumanflex.blogspot.com/

How to show Image on Pop Up Window using Servlet

Please visit my another blog http://binodservlet.blogspot.com/

Tuesday, November 11, 2008

How to sort java object

Please go to my another blog for How to sort java object
http://binodjava.blogspot.com/

Thursday, November 6, 2008

How to start Spring Spring tutorial

We can use spring in plain java project and web based java project. First I am going to explain the spring in plain java.

1. Create java project in Eclipse say SpringDemo
2. Add two jar files (spring.jar, commons-logging.jar)
3. Create three files.
a.) HelloImpl.java
b.) hello.xml
c.) helloclient.java

HelloImpl.java

public class HelloImpl {
private String greeting;
public String getGreeting() {
return greeting;
}
public void setGreeting(String greeting) {
this.greeting = greeting;
}
public String sayHello(String name){
return greeting+" "+name;
}
}

hello.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
http://www.springframework.org/dtd/spring-beans.dtd>
<beans>
<bean id="hello" class="HelloImpl">
<property name="greeting">
<value>Good Morning!...</value>
</property>
</bean>
</beans>


helloclient.java

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

public class helloclient {
public static void main(String[] args) {
new helloclient().connect();
}
public void connect(){
try
{
System.out.println("please Wait.");
Resource res = new ClassPathResource("hello.xml");
BeanFactory factory = new XmlBeanFactory(res);
HelloImpl bean1 = (HelloImpl)factory.getBean("hello");
String s = bean1.sayHello("Binod");
System.out.println(s);
}
catch(Exception e1){ System.out.println(""+e1); }
}

}

Now run helloclient
You will get output

Good Morning!... Binod


We can also implement the interface in the above example
1. Create one interface Ihello.java
public interface Ihello {

public String sayHello(String name);

}
2. Put this interface in HelloImpl.java

public class HelloImpl implements Ihello{
private String greeting;
public String getGreeting() {
return greeting;
}

public void setGreeting(String greeting) {
this.greeting = greeting;
}

public String sayHello(String name){
return greeting+" "+name;
}
}
2. No need to change any thing in hello.xml
3. Only change in helloclient.java
4. Create databae table
CREATE TABLE userdata( id int8 NOT NULL, username text, "password" text, CONSTRAINT "PK" PRIMARY KEY (id))
5. Insert data in userdata table
insert into userdata values (110,'Binod','Binod');
isnert into userdata values(120,'Pramod','Pramod');


import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;


public class helloclient {
public static void main(String[] args) {
new helloclient().connect();
}

public void connect(){
try
{
System.out.println("please Wait.");
Resource res = new ClassPathResource("hello.xml");
BeanFactory factory = new XmlBeanFactory(res);
Ihello bean1 = (Ihello)factory.getBean("hello");
String s = bean1.sayHello("Suman");
System.out.println(s);
}
catch(Exception e1){ System.out.println(""+e1); }
}
}

Now you can run the helloclient.java
you will get output

Good Morning!... Suman

Spring example with Database setup
In this example, I will show you that how to connect the database (PostgresSQL) using spring

1. Add one more jar file in the project (postgresql-8.1dev-403.jdbc2ee.jar)
2. DB2.java
3. Change in hello.xml
4. Change in helloclient.java

hello.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="hello" class="HelloImpl">
<property name="greeting">
<value>Good Morning!...</value>
</property>
</bean>

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.postgresql.Driver"/>
<property name="url" value="jdbc:postgresql://localhost:5432/postgres"/>
<property name="username"> <value>postgres</value>
</property> <property name="password"><value>suman</value>
</property>
</bean>

<bean id="db2" class="DB2">
<property name="dataSource" ref="dataSource" />
</bean>

</beans>

DB2.java

import java.sql.* ;
import javax.sql.DataSource;
class DB2
{
private DataSource dataSource;
public DataSource getDataSource() {
return dataSource;
}
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
public void connection(){
try{
Connection con = dataSource.getConnection();
Statement stmt = con.createStatement() ;
ResultSet rs = stmt.executeQuery( "SELECT * FROM userdata" ) ;
System.out.println("CONNECTION USING SPRING");
while( rs.next() ){
System.out.print("ID :: "+rs.getInt(1) +" ") ;
System.out.print("USERNAME :: "+rs.getString(2) +" ") ;
System.out.println( "PASSWORD ::"+rs.getString(3) ) ;
}
// Close the result set, statement and the connection
rs.close() ;
stmt.close() ;
con.close() ;
}catch (SQLException e) {
System.out.println("SOME PROBLEM DURING DATABASE CONNECTION :: "+e);
}
}

}

helloclient.java

import org.springframework.beans.factory.BeanFactory;import org.springframework.beans.factory.xml.XmlBeanFactory;import org.springframework.core.io.ClassPathResource;import org.springframework.core.io.Resource;
public class helloclient {
public static void main(String[] args) {
new helloclient().dbCheck();
}
public void dbCheck(){
try {
Resource res = new ClassPathResource("hello.xml");
BeanFactory factory = new XmlBeanFactory(res);
DB2 bean1 = (DB2)factory.getBean("db2");
bean1.connection();
} catch(Exception e1){ System.out.println(""+e1); } }
}

After run helloclient.java, you will get the output like this

CONNECTION USING SPRING
ID :: 110 USERNAME :: Binod PASSWORD ::Binod
ID :: 120 USERNAME :: Pramod PASSWORD ::Pramod

How to use the Properties file in Spring
1. Employee.java
2. emp.properties
3. helloConfig.xml
4. helloClient.java
5. Add two jar file in project (spring-2.0.6.jar, commons-logging.jar)

Employee.java

public class Employee {
private String name;
private String com;
public String getCom() { return com; }
public void setCom(String com) { this.com = com; }
public String getName() { return name; }
public void setName(String name) { this.name = name; }
public void show(){
System.out.println("Employee Name :: "+name);
System.out.println("Company Name :: "+com);
}

}

emp.properties
name=Binod Kumar Suman
company=Satyam Computer Service Ltd

helloConfig.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "https://imailhyd.satyam.com/OWA/redir.aspx?C=1701758999134b0eb8caa391006ac45b&URL=http%3a%2f%2fwww.springframework.org%2fdtd%2fspring-beans.dtd">
<beans>
<beanid="propertyPlaceholder" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

<property name="location" value="emp.properties" />

</bean>
<bean id="employee" class="Employee">
<property name="name" value="${name}"/>
<property name="com" value="${company}"/>
</bean>

</beans>


helloClient.java
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

public class helloclient {
public static void main(String[] args) {
new helloclient().check();
}
public void check() {
try {
ClassPathXmlApplicationContext appContext = new ClassPathXmlApplicationContext("helloConfig.xml");
BeanFactory factory = (BeanFactory) appContext;
//Resource res = new ClassPathResource("helloConfig.xml");
//BeanFactory factory = new XmlBeanFactory(res);
Employee bean1 = (Employee) factory.getBean("employee");
bean1.show();
} catch (Exception e1) { System.out.println("" + e1); }
}
}

NOTE: Properties file DOES NOT WORK with ClassPathResource. You have to use ClassPathXmlApplicationContext.As I have commented the not working code.
No need to define any where bean id="propertyPlaceholder". ${} will take automatically data from properties file.

Run the helloClient.java, you will get output
Employee Name :: Binod Kumar Suman
Company Name :: Satyam Computer Service Ltd

How to use two different properties file in Spring
(How to use two propertyPlaceholder)

When you will use two properties file then only first one will load, and will give the run time error that other properties file property not found.

I am adding one more bean class to the previos example
Company.java
public class Company {
private String name;
private String city;
private String country;
public void show(){
System.out.println("Company Name :: "+name);
System.out.println("City :: "+city);
System.out.println("Country :: "+country);
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}

com.properties
cname=Satyam Computer
city=Bangalore
county=India


helloConfig.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "https://imailhyd.satyam.com/OWA/redir.aspx?C=1701758999134b0eb8caa391006ac45b&URL=http%3a%2f%2fwww.springframework.org%2fdtd%2fspring-beans.dtd"><beans><bean id="propertyPlaceholder" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="emp.properties" />

</bean>
<bean id="propertyPlaceholder_Company"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="com.properties" />
</bean>

<bean id="employee" class="Employee">
<property name="name" value="${name}"/>
<property name="com" value="${company}"/>
</bean>

<bean id="company" class="Company">
<property name="name" value="${cname}"/>
<property name="city" value="${city}"/>
<property name="country" value="${country}"/>
</bean>

</beans>

NOTE: Give two bean id for both propertyPlaceholder.
But it will error
Error registering bean with name 'company' defined in class path resource [helloConfig.xml]: Could not resolve placeholder 'cname'

Because only first properties got load during run time.

SOLUTION: We can user different placeholder syntax for different property file. PropertyPlaceholderConfigurer's "placeholderPrefix" and "placeholderSuffix" settings use for that how to retrieve the data from properties file. By default is ${}. For example, one configurer can use ${...} and another one can have resolve #{...}

Now correct helloConfig.xml
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" http://www.springframework.org/dtd/spring-beans.dtd>

<beans>
<bean id="propertyPlaceholder"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="proper/emp.properties" />
</bean>

<bean id="propertyPlaceholder_Company"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="proper/com.properties" />
<property name="placeholderPrefix" value="#{"/>
<property name="placeholderSuffix" value="}"/>
</bean>

<bean id="employee" class="Employee">
<property name="name" value="${name}"/>
<property name="com" value="${company}"/>
</bean>

<bean id="company" class="Company">
<property name="name" value="#{cname}"/>
<property name="city" value="#{city}"/>
<property name="country" value="#{country}"/>
</bean>

</beans>

Now run the helloClient.java
You will output from both properties file

Employee Name :: Binod Kumar Suman
Company Name :: Satyam Computer Service Ltd
Company Name :: Satyam Computer
City :: Bangalore
Country :: India

Loading Application properties from a database



I am using DB2 database, so need a lot of jar file for DB2 JDBC driver (db2jcc.jar, db2jcc_licence_cu.jar, db2jcc_licnece_cisuz.jar) and other jar files (spring-2.0.6.jar, commons-collectins-3.1.jar, commons-configuration-1.4.jar,spring-modules-jakarta-commons-0.6.zip, commons-lang-2.2.jar)

1. ImageStatus.java
2. hello.xml
3. Client.java
4. Create one table (Image_status_mstr) in database

Image_status_mstr Table Structure

sqltype sqllen sqlname.data sqlname.length -------------------- ------ ------------------------------ --------------
INTEGER 4 STAT_CODE_I
VARCHAR 50 STAT_N

insert into Image_status_mstr values(1,'Validated');
insert into Image_status_mstr values(2,'NonValidated');
insert into Image_status_mstr values(3,'ReadyToPublish');
insert into Image_status_mstr values(4,'Published');

ImageStatus.java

public class ImageStatus {
private String val;
private String nonVal;
private String ready;
private String pub;
public String getNonVal() {
return nonVal;
}
public void setNonVal(String nonVal) {
this.nonVal = nonVal;
}
public String getPub() {
return pub;
}
public void setPub(String pub) {
this.pub = pub;
}
public String getReady() {
return ready;
}
public void setReady(String ready) {
this.ready = ready;
}
public String getVal() {
return val;
}
public void setVal(String val) {
this.val = val;
}
public void displayAllProperties() {
System.out.println("val :: " + this.val);
System.out.println("nonVal :: " + this.nonVal);
System.out.println("ready :: " + this.ready);
System.out.println("pub :: "+pub);
}
}

hello.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "https://imailhyd.satyam.com/OWA/redir.aspx?C=1701758999134b0eb8caa391006ac45b&URL=http%3a%2f%2fwww.springframework.org%2fdtd%2fspring-beans.dtd">
<beans>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.ibm.db2.jcc.DB2Driver"/>
<property name="url" value="jdbc:db2://localhost:2001/Suamn_DB2"/>
<property name="username">
<value>binod_db2</value>
</property>
<property name="password">
<value>suman_db2</value>
</property></bean>
<bean name="PropertyPlaceholderConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="properties" ref="CommonsConfigurationFactoryBean"/>
</bean>
<bean name="CommonsConfigurationFactoryBean" class="org.springmodules.commons.configuration.CommonsConfigurationFactoryBean"> <property name="configurations" ref="DatabaseConfiguration"/>
</bean>
<bean name="DatabaseConfiguration" class="org.apache.commons.configuration.DatabaseConfiguration">
<constructor-arg type="javax.sql.DataSource" ref="dataSource"/>
<constructor-arg index="1" value="Image_status_mstr"/>
<constructor-arg index="2" value="STAT_CODE_I"/>
<constructor-arg index="3" value="STAT_N"/>
</bean>

<bean name="imageStatus" class="ImageStatus"> <property name="val" value="${1}"/>
<property name="nonVal" value="${2}"/>
<property name="ready" value="${3}"/>
<property name="pub" value="${4}"/>
</bean>

</beans>

Client.java

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

public class Client { public static void main(String[] args) {
new Client().propertyCheck();
}
public void propertyCheck() {
try {
ClassPathXmlApplicationContext appContext = new ClassPathXmlApplicationContext("hello.xml");
BeanFactory factory = (BeanFactory) appContext;
//Resource res = new ClassPathResource("hello.xml");
//BeanFactory factory = new XmlBeanFactory(res);
ImageStatus imageStatus = (ImageStatus) factory.getBean("imageStatus"); imageStatus.displayAllProperties();
} catch (Exception e1) {
System.out.println("" + e1);
}
}
}

Run Client.java, Output would be

val :: Validated
nonVal :: NonValidated
ready :: ReadyToPublish
pub :: Published

Now we will see that how we can use two master table and two bean to load the data.

1. Create one table and bean
Table : ImageTypeMaster
INTEGER IMG_TYPE_I
VARCHAR 30 IMG_TYPE_N

insert into ImageTypeMaster values(1,'Front Cover');
insert into ImageTypeMaster values(2,'Back Cover');
insert into ImageTypeMaster values(3,'PT01');
insert into ImageTypeMaster values(4,'PT02');
insert into ImageTypeMaster values(5,'PT03');
insert into ImageTypeMaster values(6,'PT04');
insert into ImageTypeMaster values(12,'SS');

Bean ImageType.java

public class ImageType {
private String main;
private String backCover;
private String p1;
private String p2;
private String p3;
private String p4;
private String p5;
private String p6;
private String s;
public String getBackCover() {
return backCover;
}
public void setBackCover(String backCover) {
this.backCover = backCover;
}
public String getMain() {
return main;
}
public void setMain(String main) {
this.main = main;
}
public String getP1() {
return p1;
}
public void setP1(String p1) {
this.p1 = p1;
}
public String getP2() {
return p2;
}
public void setP2(String p2) {
this.p2 = p2;
}
public String getP3() {
return p3;
}
public void setP3(String p3) {
this.p3 = p3;
}
public String getP4() {
return p4;
}
public void setP4(String p4) {
this.p4 = p4;
}
public String getP5() {
return p5;
}
public void setP5(String p5) {
this.p5 = p5;
}
public String getP6() {
return p6;
}
public void setP6(String p6) {
this.p6 = p6;
}
public String getS() {
return s;
}
public void setS(String s) {
this.s = s;
}

public void show(){
System.out.println("main :: "+main);
System.out.println("backCover :: "+backCover);
System.out.println("p1 :: "+p1);
System.out.println("p2 :: "+p2);
System.out.println("p3 :: "+p3);
System.out.println("p4 :: "+p4);
System.out.println("p5 :: "+p5);
System.out.println("p6 :: "+p6);
System.out.println("s :: "+s);
}
}

hello.xml (After made change)
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "https://imailhyd.satyam.com/OWA/redir.aspx?C=1701758999134b0eb8caa391006ac45b&URL=http%3a%2f%2fwww.springframework.org%2fdtd%2fspring-beans.dtd>

<beans>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.ibm.db2.jcc.DB2Driver"/>
<property name="url" value="jdbc:db2://localhost:2001/Suamn_DB2"/>
<property name="username"> <value>binod_db2</value>
</property>
<property name="password">
<value>suman_db2</value>
</property></bean>
<bean name="PropertyPlaceholderConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="properties" ref="CommonsConfigurationFactoryBean"/>
</bean>
<bean name="CommonsConfigurationFactoryBean" class="org.springmodules.commons.configuration.CommonsConfigurationFactoryBean"> <property name="configurations" ref="DatabaseConfiguration"/>

</bean>
<bean name="DatabaseConfiguration" class="org.apache.commons.configuration.DatabaseConfiguration">
<constructor-arg type="javax.sql.DataSource" ref="dataSource"/>
<constructor-arg index="1" value="Image_status_mstr"/>
<constructor-arg index="2" value="STAT_CODE_I"/>
<constructor-arg index="3" value="STAT_N"/>
</bean>

<bean name="imageStatus" class="ImageStatus">
<property name="val" value="${1}"/>
<property name="nonVal" value="${2}"/>
<property name="ready" value="${3}"/>
<property name="pub" value="${4}"/>
</bean>

<!-- Adding code for add one more master database table and respective bean class -->

<bean name="PropertyPlaceholderConfigurerForImageType" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="properties" ref="CommonsConfigurationFactoryBeanForImageType"/> <property name="placeholderPrefix" value="#{"/>
<property name="placeholderSuffix" value="}"/>
</bean>
<bean name="CommonsConfigurationFactoryBeanForImageType" class="org.springmodules.commons.configuration.CommonsConfigurationFactoryBean"> <property name="configurations" ref="DatabaseConfigurationForImageType"/>
</bean>
<bean name="DatabaseConfigurationForImageType" class="org.apache.commons.configuration.DatabaseConfiguration">
<constructor-arg type="javax.sql.DataSource" ref="dataSource"/>
<constructor-arg index="1" value="ImageTypeMaster"/>
<constructor-arg index="2" value="IMG_TYPE_I"/>
<constructor-arg index="3" value="IMG_TYPE_N"/>
</bean>
<bean name="imageType" class="ImageType">
<property name="main" value="#{1}"/>
<property name="backCover" value="#{2}"/>
<property name="p1" value="#{3}"/>
<property name="p2" value="#{4}"/>
<property name="p3" value="#{5}"/>
<property name="p4" value="#{6}"/>
<property name="p5" value="#{7}"/>
<property name="p6" value="#{8}"/>
<property name="s" value="#{12}"/>
</bean>

</beans>

NOTE 1: When have to add more than one propertyPlaceholder then have to set different prefix and suffix for resolvoer. Thats why I have used # in second propertyPlaceholder.

NOTE2 :
<bean name="CommonsConfigurationFactoryBean" class="org.springmodules.commons.configuration.CommonsConfigurationFactoryBean"> <property name="configurations" ref="DatabaseConfiguration"/>
</bean>

I have seen in many blog or link that this bean (CommonsConfigurationFactoryBean) has <constructor-arg ref="DatabaseConfiguration"/>,
but it is not woking.

Change in Client.java

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

public class Client {
public static void main(String[] args) {
new Client().propertyCheck();
}
public void propertyCheck() {
try {
ClassPathXmlApplicationContext appContext = new ClassPathXmlApplicationContext("hello.xml");
BeanFactory factory = (BeanFactory) appContext;
//Resource res = new ClassPathResource("hello.xml");
//BeanFactory factory = new XmlBeanFactory(res);
ImageStatus imageStatus = (ImageStatus) factory.getBean("imageStatus"); imageStatus.displayAllProperties();
ImageType it = (ImageType) factory.getBean("imageType");
it.show();
} catch (Exception e1) { System.out.println("" + e1); }
}
}

Run Cleint.java, output would be
val :: Validated
nonVal :: NonValidated
ready :: ReadyToPublish
pub :: Published
main :: Front Cover
backCover :: Back Cover
p1 :: PT01
p2 :: PT02
p3 :: PT03
p4 :: PT04
p5 :: PT05
p6 :: PT06
s :: SS




Saturday, November 1, 2008

JDBC Simple example

1. I used here postgresSQL database to run this example. You can use any database, only you have to put database driver in your system environment classPath
(As my PC, path of database drive c:\jar\postgresql-8.1dev-403.jdbc2ee.jar)
2. Create database table

CREATE TABLE users(
username varchar(15) NOT NULL,
name varchar(255) NOT NULL,
pass varchar(15) NOT NULL,
CONSTRAINT users_pkey PRIMARY KEY (username))
WITHOUT OIDS;

3. Insert data into this table
insert into users values ('Binod','Binod Kumar Suman','satyam');
insert into users values ('Pramod','Pramod Kumar','Patni');
commit;

4. Write java code (Say DatabaseTest.java)

import java.sql.* ;
class DatabaseTest{
public static void main( String args[] ) {
try {
System.out.println("********** USER INFORMATION ************"); System.out.println("\n");
Class.forName( "org.postgresql.Driver" ) ;
Connection conn = DriverManager.getConnection( "jdbc:postgresql://localhost:5432/postgres","postgres","suman") ;
Statement stmt = conn.createStatement() ;
ResultSet rs = stmt.executeQuery( "SELECT * FROM users" ) ;
while( rs.next() ){
System.out.print("USERNAME :: "+rs.getString(1) +" ") ;
System.out.print("NAME :: "+rs.getString(2) +" ") ;
System.out.println("PASSWORD ::"+rs.getString(3) ) ;
}
rs.close() ;
stmt.close() ;
conn.close() ;
} catch( SQLException se )
{ System.out.println( "SQL Exception :: "+se ) ; }
catch( Exception e ) { System.out.println( e ) ; } }
}

5. Compile the code and run the code.
C:\>javac DatabaseTest.java
C:\>java DatabaseTest
********** USER INFORMATION ************
USERNAME :: Pramod NAME :: Pramod Kumar PASSWORD ::Patni
USERNAME :: Binod NAME :: Binod Kumar Suman PASSWORD ::satyam

How to start JSF

Please visit my another blog on JSF ahttp://binodjsf.blogspot.com/