How To Return Custom Streamable Wrapper Types
Description: A common practice consists of exposing dedicated wrappers types for collections resulted after mapping a query result set. This way, on a single query execution, the API can return multiple results. After we call a query-method that return a collection, we can pass it to a wrapper class by manually instantiation of that wrapper-class. But, we can avoid the manually instantiation if the code respects the following key points.
Key points:
- the type implements
Streamable - the type exposes a constructor (used in this example) or a
staticfactory method namedof(…)orvalueOf(…)takingStreamableas argument
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