java - Generic type in a map codec for MongoDB -


given map<class1, class2>, want store in format:

[{     key: ** key encoded using class1 codec **,     value: ** value encoded using class2 codec** }, { ... }, { ... },  ... ]

since it's supposed work class1 , class2, not know how implement mongodb codec, getencoderclass function (encode , decode not problem) far know, not handle generic types.

how can define , register such codec? or there easier way that?


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