SearchRequest cannot be inherited

[PhoenixMiao]

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Expected Behavior

I need attributes in SearchRequest and SearchRequest.Builder be protected which can be inherited and expand in subclass

Current Behavior

Attributes in SearchRequest and SearchRequest.Builder are private. I need to define a seires of attributes that identical with original Class to construct my own XXXSearchRequest, which holds total different variables of same name (topk, similarityThreshold...).

Context

Why attributes in SearchRequest and Searchrequest.Builder is private? which means I need to define a seires of attributes that identical with original Class to construct my own XXXSearchRequest. I used to put my expanded attributes in vectorStore, but I cannot always let users to determine the arguments of search when they build the vector store, I need to pass them in SearchRequest. But it bothers me when I found out SearchRequest not suitable for inheritation.

Attach my ArkSearchRequest, which a series of attributes of same name in SearchRequest are defined again.

ArkSearchRequest.java

[ilayaperumalg]

@PhoenixMiao Thanks for reporting. This is the design choice we made at the framework level to make the underlying SearchRequest immutable. Looking at your example, I would suggest composing SearchRequest builder as in MilvusSearchRequest here