Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
struts components can be classify into model view and controller model components like business logic business processes and data are the type of
struts framework is an open-source framework for producing the web applications in java ee based on mvc-2 architecture it uses and extends the java
a framework is made up of the set of classes which permit us to use a library in a best possible way for a particular
we can get the values in the action classes by using datagetparametervariable name described in the velocity
two xml configuration files are uses by the validator framework validator-rulesxml and validationxml the validator-rulesxml shows the standard
struts framework gives the functionality to validate the form data it can be use to authenticate the data on the users browser as well as on the
an actionform is a javabean that extends orgapachestrutsactionactionform actionform handles the session state for web application and the
the action class is type of the model and is a wrapper around the business logic the purpose of action class is to change the httpservletrequest to
jakarta struts is open source execution of mvc model-view-controller pattern for the development of web based applications jakarta struts is robust
model-view-controller mvc is a design pattern put together to help control change mvc decouples interface from business logic and data model the
in preemptive scheduling the highest priority task executes until it enters the waiting or dead states or a higher priority task comes into
in rpc the method invoker waits for the method to finish implementation and return the control back to the invoker therefore it is completely
point-to-point ptp this model permits exchanging messages via queues formed for some purposes a client can send and receive messages from one or
what is asynchronous messaging queueans asynchronous messaging includes a client that does not wait for a message from the server an event is used to
synchronous messaging involves a client that waits for the server to respond to a message so if one end is down the whole communication will
jms is the ideal high-performance messaging stage for intra business messaging with full programmatic control over quality of service and delivery
the jms provider handles security of the messages data conversion and the client triggering the jms provider verifies the level of encryption and the
messaging is a method of communication among software components or applications a messaging system is a peer-to-peer facility a messaging client can
which models are supported by jms please explain themans publish or subscribe pubsub this model permits a client publisher to send messages to a jms
with publish or subscribe message passing the sending application or client establishes a named topic in the jms broker or server and publishes
a preconfigured jms object a resource manager connection factory or a destination formed by an administrator for the use of jms clients and placed in
one of the principal benefits of jms messaging is that its asynchronous thus not all the pieces require to be up all the time for the application to
a point-to-point model is based on the concept of a message queue senders send messages into the queue and the receiver reads messages from this
java message service an interface executed by most j2ee containers to give point-to-point queueing and topic publishsubscribe behavior jms is
how do i prevent the output of my jsp or servlet pages from being cached by the browserans you will require to set the appropriate http header