how session scope works in spring?
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You use spring session beans for beans which are stateful and their state differs per user. These can be for example preferences of currently logged in user. Default scope of bean in spring is singleton and it is no different in Web Application context.
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['<select size="1" name="ddlSelect" id="ddlSelect" onchange="fnChange(this.value)" >', '<option value="0">--- Select One ---</option> <%', 'String selectedname="";', 'ArrayList<Profile> userlist = Controller.UserNameList(Profile.userId,year);', 'for (Profile j : userlist) {', 'selectedname = (!']
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Hibernate returns proxies if not all members are resolved, i.e. the object is not complete. ... To use the proxy object just never access a member directly but only via getter, even within member functions. Hibernate magic fills in the member when you get it. This way you never have to expose the object.
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To pass the strongly typed data from Controller to View using session, we have to make a model class then populate its properties with some data and then pass that data to the session as Value. Selecting the Key's name is the programmer's choice.
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A Local temporary table is defined by giving it a prefix of # and is scoped to the session in which you created it. Global temporary tables can be seen by all sessions connected to the server and are defined by a prefix of ##.
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A JSP object created using the 'request' scope can be accessed from any pages that serves that request. More than one page can serve a single request. The JSP object will be bound to the request object. Implicit object request has the 'request' scope.
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The Java class created from each JSP implements Servlet . Then, the Java code goes through the same cycle it normally does. Still at run time, it is compiled into bytecode and then into machine code. Finally, the JSP-turned-Servlet responds to requests like any other Servlet.
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['using request attributes: Set the value to send in request attribute with a name of your choice as request.setAttribute("send", "valueToSend") and retrieve it on another jsp using request.getAttribute("send");', 'using session attributes. ... ', 'using application attributes.']
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Get and Set You learned from the previous chapter that private variables can only be accessed within the same class (an outside class has no access to it). ... The get method returns the variable value, and the set method sets the value.
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8.6 Proxying mechanisms. Spring AOP uses either JDK dynamic proxies or CGLIB to create the proxy for a given target object. (JDK dynamic proxies are preferred whenever you have a choice). If the target object to be proxied implements at least one interface then a JDK dynamic proxy will be used.
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In order to pass data from controller to JSP, all you have to do is add a ModelMap argument to your controller method and then populate it inside your method body using the generic addAttribute() method. In the following example, we pass a welcome message from the controller by adding a message attribute to the model.
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JSTLSW variables are actually attributes, and by default are scoped at the page context level. As a result, if you need to access a JSTL variable value in a scriptletS, you can do so by calling the getAttribute() method on the appropriately scoped object (usually pageContext and request).
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As I understood from docs, Interceptor is run between requests. ... On the other hand Filter is run before rendering view, but after Controller rendered response.
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In request scope, a bean is defined to an HTTP request whereas in session scope, it is scoped to an HTTP session. So for an instance, if the bean scope is request and, a user makes more than one request for a web page in his user session, then on every request a new bean would be created.
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Hi, Get (getter) method is used to pass value from controller to VF page while set (setter) is used to set the value back to controller variable. Above two methods are same and will return same results.
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Explanation: Pausing the servlet for a given amount of time is not a part of the servlet lifecycle. A servlet can be checked, invoked and destroyed but it cannot be paused.
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The Spring Framework supports the following five scopes, three of which are available only if you use a web-aware ApplicationContext. Sr.No. This scopes the bean definition to a single instance per Spring IoC container (default). This scopes a single bean definition to have any number of object instances.