Java Patterns - What is the DAO design pattern

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What is the DAO design pattern

Total Answers and Comments: 4

Last Update: September 14, 2009 Asked by: prasannaramudu

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Submitted by: durgak_javaprof

It abstracts the data base access from Java application and makes it portable and dbms independent.

This helps to move to a different RDBMS at any point of time with less amount of changes in Java code

Above answer was rated as good by the following members:
yathirajulu

November 22, 2007 04:48:32

durgak_javaprof

RE: What is the DAO design pattern

It abstracts the data base access from Java application and makes it portable and dbms independent.

This helps to move to a different RDBMS at any point of time with less amount of changes in Java code

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Overall Rating: +1

September 30, 2008 02:23:24

yathirajulu

Member Since: September 2008 Contribution: 1

RE: What is the DAO design pattern

It is a main role on server-side application and easily to access RDBMS and consume the time & cost reduce the burden on developers. Moreover it is platform indepedent.

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September 10, 2009 07:35:52

imam.tunduru

Member Since: September 2009 Contribution: 2

RE: What is the DAO design pattern

DAO design pattern is all about providing a unique interface to access data from EIS.
It abstracts the low level data accessing constructs of DB specific and provides an interface hense we can still access data by doing a very less changes in our application when the DB is changed.

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September 14, 2009 02:01:42

anandps081280

Member Since: September 2009 Contribution: 1

RE: What is the DAO design pattern

DAO design pattern helps to hide the complex database access and provides the developer the freedom from it. It can be used for single DB or multiple DB based on the design pattern it is implementd. If the DB of the underlying system is not subjected to change Factory pattern can be used but if the underlying DB is changing or there are multiple DB than the Abstract Factory pattern can be used.

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