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Editorial Team
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Asked: 2026-06-02T03:27:48+00:00

My requirement is to create above mentioned data structure. I expect following operations on

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My requirement is to create above mentioned data structure.

I expect following operations on this data structure.

Operation 1 : 

public Set<Subscriber> retrievedSetofSubscribers(eventName, RegionID, RegionName);

It means when I provide EventName, RegionID and RegionName (multiple keys), operation should return a list of subscribers.

Operation 2 : 

public void InsertIntoTable(eventName, regionID, String RegionName, Subscriber);

Is there any Java supported API is available for above mentioned operations?

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1 Answer

  1. Editorial Team

    Create a class that represents one row of this table.

    Then the whole table is a Map with ‘key’ being EventName and ‘value’ being the row class.

    No multi-key needed!

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