How to implement JDBC-ODBC bridge driver (Type 1) in Websphere?
If you use JDBC type (I) driver you dont need to add any driver in websphere. you simply created DSN and use it locally, same we use java class, if you use Type(2) and Type(4) so first go to admin console then go to connection, then add driver there fill other info like conn. size, uname pass, max conn. and connect it to you applications.
What are deployment descriptors ?
Deployment descriptor is an XML file that describes how to deploy a module or application by specifying configuration and container options. For example, an EJB deployment descriptor passes information to an EJB container about how to manage and control an enterprise bean. There are two types of deployment descriptor in websphere: Web application deployment descriptor and portlet
deployemnt descriptor
Portlets are packaged as WAR files with a web application deployment descriptor (web.xml). This defines each portlet as a servlet within the web application, including unique identifiers for each portlet, the portlet class, and nitialization parameters.
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What is the difference between web server and application server?
ApplicationServer: takes care of Security, Transaction, Multithreading,
Resource pooling, load balancing, clustering, performence, highly availability,
scalability, etc. Exposes business logic to client applications through various
protocols, possibly including HTTP. Supports deployment of .war and .ear
filesApplication server = webserver + EJB container.
Webserver: handles HTTP protocol. Receives HTTP request, it responds with an
HTTP response.
What are the different application servers and Web Servers
supporting J2EE technologies?
JBoss Is an Application Server that supports J2EE
IBM Websphere and BEA
WebLogic servers are a combination of Application Server, Web Server &
container
Jakarta Tomcat is a Servlet container and a Web
server.
Apache Sever is a Web server
Is there any difference between weblogic and websphere?
Webpshere tends to focus more on integration, connectivity and web services. it has rich implementation of J2EE, better performance, more extensive integration and transaction management. In terms of trnsaction weblogic is having default transaction attribute as ‘supports’, but websphere does not have any default transaction attribute.
How many ways can you deploy applications in websphere?
How would use ensure WebSphere server logs are created on a different drive than the installation root?
Change the WebSphere server’s server variables using the Administrative Console or use scripts.
What type of files are required to deploy an application into Websphere. How can they be installed?
WAR or EAR files.
IBM WebSphere MQ classes for Java Message Service are a set of Java classes that enables the JMS applications to access WebSphere MQ systems.
Both the point-to-point and publish/subscribe models of JMS are supported.
These Java classes are available as part of the IBM WebSphere MQ client support.
1.Suports the Servlet/JSP container functionality which runs on top of HTTP.
2.Supports HTTP servers such as IBM HTTP server, MS IIS and Netscape iPlanet server.
3.Supports HTML pages, Setvlets, Java Server Pages and XML.
4.Supports EJB component model, Workload Management. WLM supports multiple servers within a single administrative domain.
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