what is difference between business delegate and data access
object(dao)? in java?
Answer Posted / nrayakwar
Both are different design pettern. name drives their
functionality.
Business Delegate : it is used decouple presentation and
business layer. it avoids to intract presentation client to
understand your business services.
Data Access Object : DAO is used on database layer,
generally it is used to avoid database intraction by EJB or
Business Object. it is used to retreive and store data.
mostly I preferred, DAO is used with Value Objects
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
What is meant by class loader? How many types are there?
Implement 2 stacks with just 1 array. The stack routines must not indicate overflow unless every slot in array is used.
Can we overload the methods by making them static?
Why are generics used?
What is java developer skills?
What do you mean by global variable?
What is difference between static variable and global variable?
What is the difference between declaration and definition in java?
Does it matter in what order catch statements for filenotfoundexception and ioexception are written?
What is the difference between the final method and abstract method?
What is pre increment and post increment in java?
When do you call copy constructor?
Explain about fail safe iterators in java?
What is strings in java?
What is empty string literal in java?