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J2EE prepares use of the JNDI interface to access different resources like JMS, JDBC, EJB etc. The client finds up for these resources through the JNDI look-up. The JNDI look like is expensive because the client requires getting a network connection to the server first. So that look-up process is redundant and expensive.
To avoid this redundant and expensive process, service objects may be cached when a client process the JNDI look-up for the first time and redefine that service object from the cache for the subsequent look-ups. The service locator pattern imports this technique.
Object diagrams define instances instead of classes. They are useful for illustrating some complicated objects in detail about their recursive relationships. When
What is PortableRemoteObject.narrow() method and what is used for? Ans) Java RMI-IIOP gives a mechanism to narrow the the Object you have received from from your
explain jumps in loops and explain labelled loops
Your task for this assignment is to define multiple classes via inheritance. Your classes should implement various "snacks" including "M&Ms", "Popcorn", etc. To begin, create an a
Im not in the line of computer science.But i would like to have some knowledge about the computer language "JAVA".I aldredy learns the computer languages "C,C++".So kindly help me
EJB 2.0 has the additional advantages over the EJB 1.1 given below 1. Local interfaces : These are beans that can be needed locally, that means by the same Java Virtual Machi
How do you decide when to use HashMap and when to use TreeMap? When we want to perform deletion, insertion and locate elements in a Map then HashMap is used. Whereas TreeMa
I want ProSport Savings Plans Project Description: To prepare an application on iPhone, Mac, iPad and Android, which does the subsequent:- Provides a calculation of the am
memory allocation of local variable
What 'System.out.println()' signifies? 'System' is a predefined class. System class gives access to the system. 'out' is the output stream. 'println' is printin
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