The Apache Tomcat 5. ServletJSP Container. Spring fournit plusieurs implmentations de cette interface. Une implmentation de BeanFactory peut tre vue comme une fabrique capable de grer un ensemble de. Microsoft Bluetooth Mouse 1001 Manual. SAP Forecasting and Replenishment for Retail for use with other merchandising software SAP Forecasting and Replenishment for Retail for use with SAP merchandising. The Common Object Request Broker Architecture CORBA is a standard defined by the Object Management Group OMG designed to facilitate the communication of systems. Search the worlds information, including webpages, images, videos and more. Google has many special features to help you find exactly what youre looking for. Generic JavaBean Resources 0. Introduction. This resource factory can be used to create objects of any Java class that conforms to standard JavaBeans naming. Objects In Javabean Activation Framework' title='Objects In Javabean Activation Framework' />If none of the standard resource factories meet your needs, you can. Tomcat 5, and then configure. In the example below, we will create a factory that only knows how. My. Bean beans, from the. Generic Java. Bean Resources. Write A Resource Factory Class. You must write a class that implements the JNDI service provider. Object. Factory inteface. Every time your. web application calls lookup on a context entry that is. Object. Instance method is. Object obj The possibly null object containing. For Tomcat, this will always be an object of type. Reference, which contains the class name. Name name The name to which this factory is bound. Bilgisayar Mhendislii Portal html, javascript, css, asp, jsp, oracle. ComputerWoordenboek. Omdat ik vaak vragen zoals Wat is een. Wat zijn. kreeg, heb ik een woordenboek met computertaal gemaakt. De onderstaande lijst bevat. In computing based on the Java Platform, JavaBeans are classes that encapsulate many objects into a single object the bean. They are serializable, have a zero. Portable-RSS-Xpress_1.png' alt='Objects In Javabean Activation Framework' title='Objects In Javabean Activation Framework' />Ctx, or null if no name. Context name. Ctx The context relative to which the. Hashtable environment The possibly null. This is generally. Tomcat object factories. To create a resource factory that knows how to produce My. TldnvfqCepw/UMOA79BZ7dI/AAAAAAAACxQ/ahxIw3SRK6w/s1600/@Aspectj+Annotations+Driven+Aspect+Before+Advice.jpg' alt='Objects In Javabean Activation Framework' title='Objects In Javabean Activation Framework' />Bean. In this example, we are unconditionally creating a new instance of. Crack Bosch Esi 2012 .1.Rar there. My. Bean class, and populating its properties. Resource. Params. You should note that any. My. Bean. Factory rather than a property of the. For more information about Object. Factory, see the. JNDI 1. 2 Service. Provider Interface SPI Specification. You will need to compile this class against a class path that includes. JAR files in the CATALINAHOMEcommonlib and. CATALINAHOMEserverlib directories. When you are through. CATALINAHOMEcommonclasses, or in a JAR file inside. CATALINAHOMEcommonlib. In this way, the required class. Catalina internal resources and your web. Declare Your Resource Requirements. Next, modify your web application deployment descriptor. WEB INFweb. xml to declare the JNDI name under which. The simplest approach is. WARNING Be sure you respect the element ordering. DTD for web application deployment descriptorsSpecification for details. Code Your Applications Use Of This Resource. A typical use of this resource environment reference might look. Configure Tomcats Resource Factory. To configure Tomcats resource factory, add an elements like this to the. CATALINAHOMEconfserver. Context element for this web application. Note that the resource name here, beanMy. Bean. Factory. must match the value specified in the web application deployment. We are also initializing the value of the bar. Bar2. 3 to be called before. Because we are not initializing the. You will also note that, from the application developers perspective. Generic Java. Bean Resources example. This illustrates one of the. JNDI resources to encapsulate functionality you can. Java J2. EE Technical Architect. Ans. No, Java runs on a virtual machine called JVM and hence doesnt embed well with the underlying hardware. Though we can create a platform independent system software but that would be really slow and thats what we would never need. Q2. What are the different types of memory used by JVM Ans. Class, Heap, Stack, Register, Native Method Stack. Q3.  What are the benefits of using Spring Framework Ans. Spring enables developers to develop enterprise class applications using POJOs. The benefit of using only POJOs is that you do not need an EJB container product. Spring is organized in a modular fashion. Even though the number of packages and classes are substantial, you have to worry only about ones you need and ignore the rest. Spring does not reinvent the wheel instead, it truly makes use of some of the existing technologies like several ORM frameworks, logging frameworks, JEE, Quartz and JDK timers, other view technologies. Testing an application written with Spring is simple because environment dependent code is moved into this framework. Furthermore, by using Java. Bean style POJOs, it becomes easier to use dependency injection for injecting test data. Springs web framework is a well designed web MVC framework, which provides a great alternative to web frameworks such as Struts or other over engineered or less popular web frameworks. Spring provides a convenient API to translate technology specific exceptions thrown by JDBC, Hibernate, or JDO, for example into consistent, unchecked exceptions. Lightweight Io. C containers tend to be lightweight, especially when compared to EJB containers, for example. This is beneficial for developing and deploying applications on computers with limited memory and CPU resources. Spring provides a consistent transaction management interface that can scale down to a local transaction. Q4.  What are various types of Class loaders used by JVM Ans. Bootstrap Loads JDK internal classes, java. Extensions Loads jar files from JDK extensions directory usually libext directory of the JRESystem   Loads classes from system classpath. Q5. What is Perm. Gen or Permanent Generation Ans. The memory pool containing all the reflective data of the java virtual machine itself, such as class and method objects. With Java VMs that use class data sharing, this generation is divided into read only and read write areas. The Permanent generation contains metadata required by the JVM to describe the classes and methods used in the application. The permanent generation is populated by the JVM at runtime based on classes in use by the application. In addition, Java SE library classes and methods may be stored here. Q6.  What is metaspace Ans. The Permanent Generation Perm. Gen space has completely been removed and is kind of replaced by a new space called Metaspace. The consequences of the Perm. Gen removal is that obviously the Perm. Size and Max. Perm. Size JVM arguments are ignored and you will never get a java. Out. Of. Memory. Error Perm. Gen error. Q7.  How does volatile affect code optimization by compilerAns. Volatile is an instruction that the variables can be accessed by multiple threads and hence shouldnt be cached. Europlus English Reward Millenium there. As volatile variables are never cached and hence their retrieval cannot be optimized. Q8.  What things should be kept in mind while creating your own exceptions in Java Ans. All exceptions must be a child of Throwable. If you want to write a checked exception that is automatically enforced by the Handle or Declare Rule, you need to extend the Exception class. You want to write a runtime exception, you need to extend the Runtime. Exception class. Q9. What is the best practice configuration usage for files pom. Ans. The best practice guideline between settings. Q1. 0.  Can you provide some implementation of a Dictionary having large number of words  Ans. Simplest implementation we can have is a List wherein we can place ordered words and hence can perform Binary Search. Other implementation with better search performance is to use Hash. Map with key as first character of the word and value as a Linked. List. Further level up, we can have linked Hashmaps like ,hashmap a key hashmap key aa, value hashmapkey aaa,valueb key hashmap key ba, value hashmapkey baa,value . Q1. 1.  What is database deadlock How can we avoid them Ans. When multiple external resources are trying to access the DB locks and runs into cyclic wait, it may makes the DB unresponsive. Deadlock can be avoided using variety of measures, Few listed below Can make a queue wherein we can verify and order the request to DB. Less use of cursors as they lock the tables for long time. Keeping the transaction smaller. Q1. 2.  Why Web services use HTTP as the communication protocol Ans. With the advent of Internet, HTTP is the most preferred way of communication. Most of the clients web thin client, web thick clients, mobile apps  are designed to communicate using http only. Web Services using http makes them accessible from vast variety of client applications. Q1. Why using cookie to store session info is a better idea than just using session info in the request Ans. Session info in the request can be intercepted and hence a vulnerability. Cookie can be read and write  by respective domain only and make sure that right session information is being passed by the client. Q1. 4.  Difference between first level and second level cache in hibernate Ans. First level cache is enabled by default whereas Second level cache needs to be enabled explicitly. First level Cache came with Hibernate 1. Second level cache came with Hibernate 3. First level Cache is Session specific whereas Second level cache is shared by sessions that is why First level cache is considered local and second level cache is considered global. Q1. 5.  What are the ways to avoid Lazy. Initialization. Exception Ans. Set lazyfalse in the hibernate config file. Set BasicfetchFetch. Type. EAGER at the mapping. Make sure that we are accessing the dependent objects before closing the session. Using Fetch Join in HQL. Q1. 6.  What are new features introduced with Java 8 Ans. Lambda Expressions, Interface Default and Static Methods, Method Reference, Parameters Name, Optional, Streams, Concurrency. Q1. 7.  What things you would care about to improve the performance of Application if its identified that its DB communication that needs to be improved Ans. Query Optimization Query Rewriting, Prepared Statements 2. Restructuring Indexes. DB Caching Tuning if using ORM 4. Identifying the problems if any with the ORM Strategy If using ORM Q1. If you are given a choice to implement the code to either Insert a Record or Update if already exist, Which approach will you follow Insert into the DB Table. If exception occurs, update the existing record. Check if the record exists and update it if it exists, If not insert a new record. Ans. In first case, there would be 2 DB calls in worst case and 1 in best case. In 2nd approach there will be always 2 DB calls. Decision on the approach should depend on the following considerations 1. How costly is the call to DB Are we using indices, hibernate etc. If calls to DB are costly, 1st approach should be the choice. Exception Book keeping load upon exception.