[SOLVED] Getting No bean named defined while implementing storage extension in Tridion 2011 SP1

I am trying to implement the storage extension using below example,

http://www.sdltridionworld.com/articles/sdltridion2011/tutorials/extending-content-delivery-storage-sdltridion-2011-1.aspx

I created my DAO and other files with the same name used in above example. After creating these files I build my code using eclipse and coverted it into .JAR file name (cd_search_Indexer).

1) I copied my jar file to my presentation tridion_home/lib folder

2) I created bundle xml with name search_dao_bundle.xml as below and placed on same location i.e. tridion_home/config where my cd_storage_xml is placed.

<?xml version="1.0" encoding="UTF-8"?>
<StorageDAOBundles>
    <StorageDAOBundle type="persistence">
        <StorageDAO typeMapping="PublishAction" class="com.tridion.storage.extension.search.JPAPublishActionDAO" />
    </StorageDAOBundle>
</StorageDAOBundles>

3) After that I added my bundle entries into my cd_storage_conf.xml as below:

<StorageBindings>
    <Bundle src="search_dao_bundle.xml"/>
</StorageBindings>

and down under I created my new storage type as below:

<Storage Type="persistence" Id="searchdb" dialect="MSSQL" Class="com.tridion.storage.persistence.JPADAOFactory">
    <Pool Type="jdbc" Size="5" MonitorInterval="60" IdleTimeout="120" CheckoutTimeout="120" />
    <DataSource Class="com.microsoft.sqlserver.jdbc.SQLServerDataSource">
        <Property Name="serverName" Value="********" />
        <!--Property Name="portNumber" Value="1433" /-->
        <Property Name="databaseName" Value="********" />
        <Property Name="user" Value="********" />
        <Property Name="password" Value="********" />
    </DataSource>
</Storage>

After that for itemmapping I did below

<ItemTypes defaultStorageId="defaultdb" cached="false"> 
    <Item typeMapping="PublishAction" cached="false" storageId="searchdb" />
</ItemTypes>

4) I restarted my deployer service got below exception in my core logs

2013-01-03 12:44:20,713 ERROR JPADAOFactory - Unable to load JPA DAO with name: PublishAction and class: com.tridion.storage.extension.search.JPAPublishActionDAO due too exception in DAO construction
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'JPAPublishActionDAO' is defined
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:527) ~[spring-beans.jar:3.0.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1083) ~[spring-beans.jar:3.0.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:274) ~[spring-beans.jar:3.0.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198) ~[spring-beans.jar:3.0.5.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1087) ~[spring-context.jar:3.0.5.RELEASE]
    at com.tridion.storage.persistence.JPADAOFactory.configureBundle(JPADAOFactory.java:80) ~[cd_datalayer.jar:na]
    at com.tridion.storage.configuration.StorageFactoryConfigurationLoader.configureStorage(StorageFactoryConfigurationLoader.java:91) [cd_datalayer.jar:na]
    at com.tridion.storage.configuration.StorageFactoryConfigurationLoader.configureStorage(StorageFactoryConfigurationLoader.java:65) [cd_datalayer.jar:na]
    at com.tridion.storage.configuration.StorageFactoryConfigurationLoader.configure(StorageFactoryConfigurationLoader.java:51) [cd_datalayer.jar:na]
    at com.tridion.configuration.step.ConfigurationStepLoader.configure(ConfigurationStepLoader.java:47) [cd_core.jar:na]
    at com.tridion.storage.StorageManagerFactory.configure(StorageManagerFactory.java:139) [cd_datalayer.jar:na]
    at com.tridion.services.BaseService.<init>(BaseService.java:107) [cd_core.jar:na]
    at com.tridion.storage.StorageManagerFactory.<init>(StorageManagerFactory.java:106) [cd_datalayer.jar:na]
    at com.tridion.storage.StorageManagerFactory.reloadInstance(StorageManagerFactory.java:86) [cd_datalayer.jar:na]
    at com.tridion.storage.StorageManagerFactory.<clinit>(StorageManagerFactory.java:58) [cd_datalayer.jar:na]
    at com.tridion.storage.deploy.PageHandler.deploy(PageHandler.java:58) [cd_datalayer.jar:na]
    at com.tridion.deployer.DeploymentHandler.deploy(DeploymentHandler.java:90) [cd_datalayer.jar:na]
    at com.tridion.deployer.modules.PageDeploy.processPage(PageDeploy.java:145) [cd_deployer.jar:na]    
    at com.tridion.deployer.modules.PageDeploy.processItem(PageDeploy.java:118) [cd_deployer.jar:na]
    at com.tridion.deployer.SectionVisitor.processSection(SectionVisitor.java:83) [cd_deployer.jar:na]
    at com.tridion.deployer.SectionVisitor.processSection(SectionVisitor.java:87) [cd_deployer.jar:na]
    at com.tridion.deployer.SectionVisitor.processSection(SectionVisitor.java:87) [cd_deployer.jar:na]
    at com.tridion.deployer.SectionVisitor.processSection(SectionVisitor.java:87) [cd_deployer.jar:na]
    at com.tridion.deployer.SectionVisitor.process(SectionVisitor.java:60) [cd_deployer.jar:na]
    at com.tridion.deployer.Processor.process(Processor.java:109) [cd_deployer.jar:na]
    at com.tridion.deployer.workers.ProcessorWorker.doWork(ProcessorWorker.java:74) [cd_deployer.jar:na]
    at com.tridion.deployer.phases.ProcessingPhase.execute(ProcessingPhase.java:73) [cd_deployer.jar:na]
    at com.tridion.deployer.phases.DeployPipelineExecutor.runMainExecutePhase(DeployPipelineExecutor.java:186) [cd_deployer.jar:na]
    at com.tridion.deployer.phases.DeployPipelineExecutor.doExecute(DeployPipelineExecutor.java:97) [cd_deployer.jar:na]
    at com.tridion.deployer.phases.DeployPipelineExecutor.execute(DeployPipelineExecutor.java:61) [cd_deployer.jar:na]
    at com.tridion.deployer.TransactionManager.handleDeployPackage(TransactionManager.java:80) [cd_deployer.jar:na]
    at com.tridion.deployer.queue.QueueLocationHandler$1.run(QueueLocationHandler.java:176) [cd_deployer.jar:na]
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [na:1.6.0_26]
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) [na:1.6.0_26]
    at java.util.concurrent.FutureTask.run(Unknown Source) [na:1.6.0_26]
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) [na:1.6.0_26]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.6.0_26]
    at java.lang.Thread.run(Unknown Source) [na:1.6.0_26]

Edit: Below are the steps I followed to create my DAO, Entity and Interface classes.

1) Open the eclipse helios

2) Created a project with name "Storage Extension"

3) Created new folder "lib" and added all the tridion_home/lib

4) Created new package "com.tridion.storage.extension.search"

5) Added my DAO, Entity and Interface java classes

6) Added 'lib' jars in reference

7) Build the package converted to jar (cd_storage_indexer)

8) copied the build jar into tridion_home/lib

9) Rest followed the same as Mihai has suggested.