#Jsf icefaces interview questions update

What is the difference between Hibernate and EJB 3? Do not you think EJB 3 is just a clone of Hibernate?

The Java Transaction API consists of three elements: a high-level application transaction demarcation interface, a high-level transaction manager interface intended for an application server, and a standard Java mapping of the X/Open XA protocol intended for a transactional resource manager.Ħ.

#Jsf icefaces interview questions update

The Java™ Transaction API (JTA) allows applications to perform distributed transactions, that is, transactions that access and update data on two or more networked computer resources.Java Transaction API (JTA) specifies standard Java interfaces between a transaction manager and the parties involved in a distributed transaction system: the resource manager, the application server, and the transactional applications.Using Joss JMX agents and monitoring the deployed components to the application server involves in the first step.Īfter finding the most of the time spent by specific components or libraries or most of the resources, one can use Jprobe a specialized tool for examining the single object or the objects loaded in the memory.

This step is to find where the degradation is, whether it is external or internal and where is the appliciation spending all the time. How do you monitor JBoss and detect the bottleneck of an application?ĭifferent components of the application are to be measured. This feature is provided by the JBoss jBPM process designer.Ĥ.

The business process is graphically represented to facilitate a strong link between the business analyst and technical developer. The combination of workflow applications development with process design is a feature of JBoss jBPM. Enabling the creation of business processes that coordinates between people, applications and services is the functionality of BPM engine. JBoss decreases the network traffic and increases the scalability of applications by eliminating unnecessary database acces.Fully transactional features and highly configurable set of options which are to deal with concurrent data access, are provided by JBoss cache in an efficient manner possible for the applications. Frequently accessed Java objects are cached by utilzing JBoss cache to improve the performance of e-business applications. JBoss supports JNDI, Servlet/JSP (Tomcat or Jetty), EJB, JTS/JTA, JCA, JMS, Clustering (JavaGroups), Web Services (Axis), and IIOP integration (JacORB). It runs under any JVM of 1.3 or later versions. It was embedded with Apache Tomcat web server.

Being JEE based, the JBoss supports cross-platform java applications. JBoss is a popular open source application server based on JEE technology. at .(Parameters.java:407) at .(Parameters.java:229) at .Request.parseParameters(Request.java:2874) at .Request.getParameter(Request.java:1291) at .RequestFacade.getParameter(RequestFacade.java:363) at .RequestParameterMap.get(RequestParameterMap.java:75) at .RequestParameterMap.get(RequestParameterMap.java:56) at $UnmodifiableMap.get(Unknown Source) at .WindowScopeManager.isDisposeWindowRequest(WindowScopeManager.java:160) at .WindowScopeManager.isSessionAwareResourceRequest(WindowScopeManager.java:74) at .SessionAwareResourceHandlerWrapper.isResourceRequest(SessionAwareResourceHandlerWrapper.java:32) at .SessionTimeoutMonitor.isSessionAwareResourceRequest(SessionTimeoutMonitor.java:42) at .SessionAwareResourceHandlerWrapper.isResourceRequest(SessionAwareResourceHandlerWrapper.java:32) at .isResourceRequest(ResourceHandlerWrapper.java:137) at .JBoss Interview Questions for freshers experienced :. ] (http-localhost-127.0.0.1-8080-4) rvice() for servlet Faces Servlet threw exception: : Parameters processing failed. Hi i am using ace:dataExporter but its not working with jboss 7.1.1 final so any one help me to resolve this issue. 1 Answer dataExporter not working with JBoss7.1.1 final