The lookupdispatchaction class is a subclass of dispatchaction and provides a mechanism for modularizing a set of related functions into a single action, thus eliminating the need to create separate, independent actions for each function. Whats the difference between business process mapping and modeling. This action is useful for developers who prefer to combine many similar actions into a single action class, in order to simplify their application design. Sometimes business process mapping and business process modeling are used interchangeably to refer to simply documenting of how a business operates, how inputs and outputs flow through a system.
Lookupdispatchaction is one of the builtin actions provided along with the struts framework. What is the difference between dispatchaction and lookupdispatchaction in struts framework. Note all of the other mapping characteristics of this action must be shared by the various handlers. What is the differnece between look up dispatch and. If youre looking for struts interview questions and answers for freshers and experienced, you are at right place. At run time, this class manages to delegate the request to one of the methods of the derived action class. The main difference between model 1 and model 2 is that in model 2, a. What is difference between lookupdispatchaction and dispatchaction.
An abstract action that dispatches to a public method that is named by the request parameter whose name is specified by the parameter property of the corresponding actionmapping. What is the actual difference between lookupdispatchaction and dispatchaction. Struts lookupdispatchaction example struts lookupdispatch action org. Download this struts dispatchaction example struts dispatchaction example. Top 10 struts interview question and answer j2ee this time its struts interview questions, after writing spring interview questions few weeks back i was thinking what to pick for my interview series and than i thought about any web framework, and on that struts is my favorite. Aug 14, 2012 difference between the dispatchaction and dispatchlookup action is that the latter does a reverse lookup to match the localized value submitted for the button back to the message key. Dispatchaction is nothing but combination of different actions into one action but in this case in form the button names and the method names must be same.
Lookupdispatchaction provides a mechanism for grouping a set of related functions into a single action, thus eliminating the need to create seperate actions for. Difference between action and dispatchaction classes. What is the difference between a spring request mapping and. The basic difference is that lookupdispatchaction uses a map and the message key to look up hence the lookup part of the class name which method to run, while dispatchaction uses the parameter value directly.
What is difference between the value object and jdo. Actual method that gets called in lookupdispatchaction whereas dispatchaction dispatches the action based on the parameter value. An abstract action that dispatches to a public method that is named by. Convergys struts interview questions asked cinterviews. Dispatchaction provides a way to group all related functions into a single action class. Lookupdispatchaction class is much like the dispatchaction class except that it uses a java map and perties file to dispatch methods.
What is the difference between dispatch action and lookup. Lookupdispatchaction is the subclass of the dispatchaction. Its needed by struts to be able to instantiate a bean when. Its a useful mechanism to avoid create separate action classe for each function. First create a new dynamic web project and configure it as maven project. In reality, business process mapping is the tool focused on documentation. Go to struts tutorials new what is difference between lookupdispatchaction and dispatchaction. Tutorials, free online tutorials, sitesbay provides tutorials and interview questions of all technology like java tutorial, android, java frameworks, javascript, ajax, core java. The collection of related functions into a single action is possible using this action. The type attribute of the is used to enter fqcn of the bean class that would probably extend the actionform. Your action mapping in strutsconfig specifies the request parameter. An abstract action that dispatches to the subclass mapped execute method. The model contains the core of the applications functionality.
What is the difference between dispatchaction and lookupdispatchaction. Struts interview questions struts is a free opensource framework for creating. Business process modeling bpm takes this one step further by providing a visual way to understand, analyze, and improve upon a current method of working. Then for each the url we need to find a bean which actually should be invoked to process some url to find a method which spring should call. Nov 26, 2019 what is difference between lookupdispatchaction and dispatchaction. Mar 06, 2008 difference between dispatchaction and lookupdispatchaction what is the difference between dispatchaction and lookupdispatchaction tiles in lookupdispatchaction struts tiles in lookupdispatchaction hi, i am new in using tiles. Struts interview questions struts is a free opensource framework for creating java web applications. The message key is then mapped to the name of the dispatch method. Apr 10, 2007 diff bw dispatchaction lookupdispatchaction 843841 apr 10, 2007 4. Which is the best website that has a collection of.
The basic difference is that lookupdispatchaction uses a map and the message key to look up hence the lookup part of the class name which method to run, while dispatchaction. Difference between message mapping and interface mapping. The difference between lookupdispatchaction and dispatchaction is that the actual method that gets called in lookupdispatchaction is based on a lookup of a key value instead of. Lookupdispatchaction provides a mechanism for grouping a set of related. An abstract action that dispatches to the subclass.
Apr 28, 2016 you can try these interview questions and answers on java, j2ee, struts, spring, svn, rad, maven, xml, design pattern. To use this action you need to extend this lookupdispatchaction class in your action class. Different kinds of actions in struts the different kinds of actions are done by the following. May 21, 2018 struts interview questions and answers. May 18, 20 this class does not provide an implementation for the execute method because dispatchaction class itself implements this method. You can try these interview questions and answers on java, j2ee, struts, spring, svn, rad, maven, xml, design pattern. The difference between lookupdispatchaction and dispatchaction is that the actual method that gets called in lookupdispatchaction is based on a lookup of a key value instead of specifying the method name directly. Diff bw dispatchaction lookupdispatchaction 843841 apr 10, 2007 4. If there are three operation like add, delete, update employee.
Dispatchaction an abstract action that dispatches to a public method that is named by the request parameter whose name is specified by the parameter property of the corresponding actionmapping. Dispatchaction, actiondispatcher, lookupdispatchaction. A lookupdispatchaction by contrast determines which method to call not based. Dispatchaction provides a mechanism for grouping a set of related functions into a single action, thus eliminating the need to create seperate actions for each. Struts interview questions interview questions sitesbay. Dispatchaction vs lookupdispatchaction vs eventdispatchaction. Difference between action and dispatch action in struts dispatch action class is used to group related action into one class. In this example we will see how to group a set of user related actions like add user, update user and delete user into a single action called useraction. What is the difference between dispatch action and lookup dispatch action in struts.
In case of dispatchaction, you have to declare the method name in the jsp page. Dispatch action lookupdispatchaction its a parent class of lookupdispatchaction subclass of dispatch action dispatchaction provides a mechanism for grouping a set of related functions into asingle action, thus eliminating the need to create separate actions for each function. This action is useful for developers who prefer to combine many similar actions into a single action class, in. Action will extends disptchaction public class dispatchaction1 extends dispatchaction. What is the difference between session scope and request scope when saving formbean. What is the main difference between action and dispatchaction. Business process mapping and modeling tips, examples. Dispatchaction dispatches the action based on the parameter value.
Struts mappingdispatchaction class is used to group similar functionality into a single action class, and execute the function depends on parameter attribute of. Here is the signature of the execute method action class. Ive tried reading some points over the web and its not clear lookupdispatchaction shields the application from the side effect of i18n, also it refers about resourcebundle and locale independent. Have the different forms use hidden fields whose name matches. One of the builtin actions provided by the struts framework. In which method of action class the business logic is executed. We have an impressive collection of struts 2 interview questions and answers for. Jul 16, 2009 lookupdispatchaction is subclass of dispatchaction in case of dispatchaction, we have to declare the method name in the jsp page. Struts interview questions struts faqs jsf interview. And it also maintains the session state its object is automatically populated on the server side with data entered from a form on the client side. Dispatchaction in struts, java, lookupdispatchaction in struts, resource bundle, struts framework posted in struts 1.
When you want to write more than 1 action in same action then you can use dispatch action. Dispatchaction, lookupdispatchaction and mappingdispatchaction. The difference between lookupdispatchaction and dispatchaction are given below. We can map this key name to a method name by overriding the getkeymethodmap method. May 05, 2010 struts mappingdispatchaction class is used to group similar functionality into a single action class, and execute the function depends on parameter attribute of the corresponding actionmapping. This is useful in cases where an html form has multiple submit buttons with the same name. In case of lookupdispatchaction there is no rule to same the button names and method names and in lookupdispatchaction there is a method available in action. Diff bw dispatchaction lookupdispatchaction oracle community. Eventactiondispatcher apache struts 2 wiki apache software. Difference between the dispatchaction and dispatchlookup action is that the latter does a reverse lookup to match the localized value submitted for the button back to the message key.
Q1 what is difference between these classes dispatchaction vs lookupdispatchaction vs eventdispatchaction vs mappingdispatchaction. Selection of a method depends on the value of the parameter passed. What are the differences between dispatchaction and. What is the difference between application server and web server. The main constraint in the dispatchaction is the method name in the action. The button name is specified by the parameter property of the corresponding actionmapping. The difference between lookupdispatchaction and dispatchaction is that the actual method that gets called in lookupdispatchaction is based on a lookup of a. The difference between lookupdispatchaction and dispatchaction is that the. Taught by the author of core servlets and jsp, more. Explain the difference between dispatchaction and lookupdispatchaction in. Modelviewcontroller mvc is a design pattern put together to help control change. Lookupdispatchaction is subclass of dispatchaction.
This action is useful for developers who prefer to combine many similar actions into a single action class, in order to simplify. In this example we will see how to group a set of user related actions like add user, update user and delete user into a. Your request might be handled if the relative url match the path value in action config and you have mapped the action servlet to. Difference between dispatchaction and lookupdisactaction. Which is the best website that has a collection of interview. Where as lookupdispatchaction which is a subclass of it. Mvc decouples interface from business logic and data. Struts java2share scjp scwcd syllabus exam pattern. Lookupdispatchaction is subclass of dispatchaction in case of dispatchaction, we have to declare the method name in the jsp page. Diff bw dispatchaction lookupdispatchaction oracle. What is actionmapping and is the action mapping specified. Difference between dispatchaction and lookupdispatchaction. Find answers to difference between dispatchaction and lookupdisactaction. Unlike dispatchaction, mapping characteristics may differ.
Includeaction, dispatchaction, lookupdispatchaction and switchaction. In case of lookupdispatchaction there is no rule to same the button names and method names and in lookupdispatchaction there is a method available in action class that is getmethodmap it will returns map object and also it is having the properties class which is useful to access the data from external file and in i18n we use lookupdispatchaction. Lookupdispatchaction provides a mechanism for grouping a set of related functions into a single action, thus eliminating the need to create seperate actions for each functions. Difference between action and dispatch action in struts.