Bean configuration
beanConfig.xml

<bean id="dataSource" destroy-method="close">
 <property name="driverClassName"><value>${db.driverClassName}</value></property>
 <property name="url"><value>${db.url}</value></property>
 <property name="username"><value>${db.username}</value></property>
 <property name="password"><value>${db.password}</value></property>
</bean>

Property file
Oracle.properties

db.driverClassName=oracle.jdbc.driver.OracleDriver
db.url=jdbc:oracle:thin:@db-server:1521:db-schema
db.username=username
db.password=password

How to configure this property file into  BeanConfig.xml

Simply configure PropertyPlaceholderConfigurer bean like other beans

<bean id="placeholderConfig" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
 <property name="location"><value>Oracle.properties</value></property>
</bean>
<bean id="dataSource" destroy-method="close">
 <property name="driverClassName"><value>${db.driverClassName}</value></property>
 <property name="url"><value>${db.url}</value></property>
 <property name="username"><value>${db.username}</value></property>
 <property name="password"><value>${db.password}</value></property>
</bean>

I am wishing every one a happy new year

Thank you Magnus Skjegstad , for making me as a part of this project.

StAX
The main goal of StAX API(http://jcp.org/en/jsr/detail?id=173) is to give “parsing control to the programmer” by providing a simple iterator based API. This allows the programmer to ask for the next event (pull the event) ,because of this property StAX is called as pull parser .StAX was created to address limitations in the two most prevalent parsing APIs, SAX and DOM.

DOM vs SAX vs StAX
DOM creates a fully tree based structure of xml document in the memory and traverse randomly. DOM takes lots of memory. So its inefficient for processing large xml document.

But SAX parser is more efficient in terms of memory usage. SAX is a streaming API it parse sequentially when an xml Infoset found it fires events. SAX doesn’t provide random access to xml data. We don’t have control over the xml parsing. When an event(element or attribute or text or CDATA founds) occurs SAX parser send data to your program(Push Parsing).

In case of StAX (Pull Parsing) API we have to call parser API to get next element when we wanted. You can control the parsing from your code. Using Pull parser we can filter xml document, means we can ignore the unnecessary elements. Pull parsing library is smaller than push parser.

When there is memory limitation you should go for streaming API for example cell phone application.
Woodstox is a StAX implementation.
Which parser you are using? And How you handles xml parsing in your application

i). Any time you can change the internal structure of the project without changing the functionality. Your test cases makes sure that your chages is right or wrong.

ii). Writing test cases will makes you to break down the code according to functionality. and ensures that that part is tested succesfully

iii). If a new person, who knows the project partially can add/change the code[no need to worry about wether its effect to other part of project]

iv). Doing TDD we can tell exact persentage of project status.

Some disadvantages are:

i). its boring task, not a creative work

ii) time consuming while following a faster schedule.

iii). Developer must have a good understanding on the automated testing API[JUnit or TestNG,..]

This all are my understandings that i got from books and my experiance.
please reply your comments on this

Look on personal life,September we made a second honeymoon trip to Mahabaleshwar. Onam we celebrated in kerala. with our whole family. about 10 days we spend in kerala. we went to guruvayur temple and then to Veegaland also.

Look on professional view, had a absoutely eventful year. Moved to a different project within in the same company and it is very interesting to roll out the projects in a shorter time frames. Had oppertunity to work in
three different products. In between that lots of good friends left company. @ December i also resigned from the current employer. and new year is going to start with new company.

Me and my wife wishing you a happy and prosperous new year