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Is Hibernate a "FRAMEWORK"? When to use Spring Framework?
AnandKarthick
- Sep 11th, 2007
Hibernate is a ORM Tool which has to be used as a persistent layer in java applications. Spring happens to be a light weight container and framework which is very much flexible.
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HiHow can we make a hashmap synchronised by usin the collections framework
keerthana
- Oct 24th, 2007
Map myThreadSafeMap = Collections.synchronizedMap( new HashMap() );
phanikumar26in
- Jun 17th, 2006
Iam not quite getting the wordings like "course-grained & fine-grained" while going thru some EJB article...can anybody explain what exactly its meant for
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In Distributable environment,what happens if our component throws an exception(may be checked/unchecked) to others who r using our component. we must handle here itself or let it leave to others to handle? plz. reply soon
Mahesh Tpt
- Nov 5th, 2007
In exception handling, we should use throw clause to throw the exception because exceptions in java are throwable. If any method calls the throw clause, it(throw clause) will tell "If you call me, You...
VenkitaKrishnan
- Apr 4th, 2007
If your component throws an exception, in most cases we should not catch the exception, otherwise the calling component will never know that an exception has occured.What we should do is to force the ...
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Hi,Seasons Greetings!I want to know the real time environment from where you actual code jsp or servlets or a java program. I mean how your project manager or Team leader asks you to do develop the code. Take the example of jsp's, Will they ask you to code a bunch of jsp's at a time from a given module or.................More precisely How is work allotted too you and how they are integrated ?I request you to please input your experience. Examples are highly appreciated.Archana
gbhanu81
- Dec 18th, 2007
Question: Hi,Seasons Greetings!I want to know the real time environment from where you actual code Jcl,Cobol program. I mean how your project manager or Team leader asks you to do develop the code. Ta...
suman
- Feb 13th, 2007
HI, Hoping you know the structure of the project, the work is divided into modules, and each individual is allocated some work. All the work that is done is integrated with the help of CVS. ...
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WEB.XML
If more than one welcome-file, which one execute first? If first will run, what about second?
hemasundar
- Jan 2nd, 2008
If more than one welcome-file is there in welcome-files list, the first file in that list will be the welcome-file and the second one will not be executed.If the first file is not available, second one will considered , aif not third,nd so on.
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How do you redirect in JSP and in Struts?
mabhijit
- Jan 11th, 2008
There are two ways to redirect a request from JSP. They are1). response.sendRedirect("Path");2). requestDispatcher.forward("path");Now the difference b/t these two are :-1).sendRed...
nirajthacker
- Sep 26th, 2007
If you use response.sendRedirect("path") you will lose your request object. Use requestDispatcher.forward("path") to retain your request object.
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How connection pooling works in JDBC?
gerald.amalraj
- Feb 21st, 2008
This connection pool maintains a hashtable which contains connection objects as keys and boolean value as stored values(i.e. Boolean value indicates whether a connection is in use or not)for your info...
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What is the difference between apache webserver and tomcat webserver?
raman36127
- May 5th, 2008
Apache is an HTTP server written in C that can be compiled and run on many platforms. See http://www.apache.org Java WebServer is an HTTP server from Sun written in Java that also supports Servlets...
varsha
- Nov 2nd, 2006
Apache is a web server (mainly support static html). Tomcat is a servlet container (mainly support servlets).Apache is what your browser connects to, tomcat is what apache connectsto to ask for servle...
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What is difference between HTML comment and jsp comment
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How do servlets belonging to two apps communicate
mikessun
- May 7th, 2008
You can use response.sendRedirect(someURL) to redirect to another servlet in another application. But you will lose your session since a session is tied with a web context while you are redirecting to another web context.
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What is the problem in getting the session object of hibernate directly in the action class of struts?
mikessun
- May 7th, 2008
Most likely the hibernate config file is not located corrected; the default should be under WEB-INF/classes/yourConfigFile
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Hi iam new to springs ,can u explain what are the advantages of springs?
mikessun
- May 8th, 2008
Spring is an IoC based framework. IoC refers to Inversion of Control, meaning that one object using 2nd object to provide certain capability. Advantages:* simplify coding via POJO programming and fram...
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What are the Lazy Property, Lazy Collection in Hibernate
mikessun
- May 8th, 2008
Lazy property in hibernate is used to control when child/ren class(es) should be loaded, e.g., when a parent class is loaded and lazy property is true, the child entity is not loaded until an explicit call getChild() is invoked
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Even though tomcat is installed properly, when we send a request for an existing servlet from the internet explorer to the tomcat server, the browser is displaying the requested resourse is not available. What to do? Please reply if you know
mikessun
- May 8th, 2008
Most likely you did not define the servlet mapping correctly. in web.xml file, you define following:....?name_of_servlet com.somepackage.TestServlet.... name_of_a_servlet /test_url_pat...
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When we write JavaScript Code in the JSP Page from where the Java Script code will be executed by the Container
naveen.bj7
- May 9th, 2008
Whenever request for that jsp is sent thru URL of the available browser then the javascript code in the tags will be execute
srinivas.g
- Jul 25th, 2006
Actually we need validation first of all. if we done serverside validation ,it sholudbe checked at serverside.but it will increase the network traffic.so that's why we need java script which is used to validate the given data at clientside before submitting to server.
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Run more than one application in WebSphere
How can we run more than one web application in a Websphere application server?
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API
What is an API
amitkumarpadhy
- Jun 13th, 2008
API stands for Application Programming Interface. In a much broader sense it is something like a source code library that supports the request made by a pragram coded by you.e.g J2SE api , J2ee api
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Java Helper Class and Session Facade
What is helper class? What is session facade?
amitkumarpadhy
- Jun 13th, 2008
Java Helper class is one that your class under consideration delegates the work to be done to . Example. Consider an n tier application where Struts is the presentation layer . Now generally the ...
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What are tokens in Java?
How and Where do we use them in an application. Give an example.
gaanbd
- Jun 18th, 2008
Java Tokens are used in struts. when a form is refreshed the value gets submitted twice results in duplicate form submission. To avoid this each page is given a identity called token one can save toke...
Sonthosh
- Jun 7th, 2008
Tokens in java means the string tokens generated by the string tokenizer based on the delimiters used. For example, if the phrase "hello world" is tokenized based on delimiter ' ', it will return two tokens namely 'hello' and 'world'.
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