Iterator design pattern

Why we use this pattern

• We use the Iterator design pattern to iterate a collection of objects.
• If we have used android or java and have tried looping the collection of items, We have seen this pattern before.
• Consider a module where we have a collection of objects that has to be iterated and retrieved.
• Many clients are using this module to get the items from this module.
• Now suppose we have a certain strategy that we have implemented for iteration of the client, now in the future we will modify the iteration strategy of the module with a new algorithm.
• If both are coupled, changes need to be made in all the clients that use the module.
• But using the iterator design pattern we can solve this.
• only change need to be in the module and none in the clients that depend on that module.

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Projects
BrowseHistory

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Project: BrowseHistory

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