which pattern to use?

I have an interface 'Rule' which defines 5 methods. I have 2 classes 'ShiftRule' and 'GroupRule' which implements the 'Rule' interface. At run-time i will be using either 'ShiftRule' or 'GroupRule'.

What pattern I should use for the above case? Please provide a link.

Thank you

[310 byte] By [uryl99a] at [2007-10-2 0:53:35]

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# 1

The Factory pattern. Do a Google search.- Saish

Saisha at 2007-7-15 18:13:18 >

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# 2

I think the best fit paatern over this scenario is Abstract Factory.

khindria at 2007-7-15 18:13:18 >

# 3

FactoryMethod works as well and is simpler to implement. I occassionally do use AbstractFactory, but rarely is that kind of pluggability needed for implementors of a single interface, IMO.- Saish

Saisha at 2007-7-15 18:13:18 >

# 4

u can use IOC but it would be costlier.its better to go for Abstract Factory Design Pattern

phanidharkumara at 2007-7-15 18:13:18 >

# 5

http://www.dofactory.com/Patterns/PatternStrategy.aspx

mchan0a at 2007-7-15 18:13:18 >

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which pattern to use?

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