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Title :
Data Access Object
Description : DAO A simple example and guide
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Title :
Session Facade
Description : Advantages Discussed
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Written By : ISHTEK
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DAO Data Access Object
Description : Advantages Discussed
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Written By : ISHTEK
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Business Delegate
Description : Advantages or Benefits discussed
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Advantages-Discussed - DAO-Data-Access-Object - J2EE-Design-Patterns Example
Author : ISHTEK
Date (Year/Month/Date): 2009-05-26 Advantages or Benefits of Data Access Object J2EE Design Pattern What are the benefits or advantages of Data Access Object (DAO) J2EE Design Pattern ? Data access, be it database, or webservices or LDAP, JMS, RMI, or anything else, requires ways to de-couple business layer from database access. I think, 1. Data Access Object (DAO) Design Pattern can de-couple data access related code like java.sql package api, webservices apis etc from business/client layer/code. 2. Data Access Object (DAO) Design Pattern can be stateless for concurrency and scalable system. 3. Data Access Object (DAO) Design Pattern can encapsulate datastore related exception handling from client / caller code. 4. Data Access Object (DAO) Design Pattern can be easy to mock up data access for early in developement, and unit testing to happen. 5. Data Access Object (DAO) Design Pattern can provide simple to use abstraction to the data acess API. These are my own understanding only, If you are interested in adding or contracting any of these, you are most welcome to do so just by writing or commenting on this Page.

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This List is generated as on 2009-07-12 (YYYY-MM-DD)
#Discuss-these : questions-and-answer : Interview-Questions-on-Java
#DAO-A-simple-example-and-guide : Data-Access-Object : J2EE-Design-Patterns
#Advantages-Discussed : Session-Facade : J2EE-Design-Patterns
#Advantages-Discussed : DAO-Data-Access-Object : J2EE-Design-Patterns
#Advantages-or-Benefits-discussed : Business-Delegate : J2EE-Design-Patterns
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