Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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None
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Description
Right now for KeyValueStore we have a range query to return an iterator. For usage in BEAM, we need a iterable which can create an iterator when needed. Add the iterate() function in KeyValueStore to support it. It's implemented as follows:
1) for rocksDb, it will create the iterator when it's called, which will has a snapshot of the elements. Then every time when the iterator is needed, we will seek the iterator from beginning;
2) for inMemoryDb, it will create the snapshot submap when iterate() is called. The submap is an iterable and it can return a new iterator when needed.
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