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Consider 3 classes:
Data class has some attributes: a,b,c
I’m looking for a design pattern so the Manipulator1 only has r/w access to a and b while Manipulator2 can change just b and c.
Any ideas?
I’m coding in Java BTW.
It could be seen as an application case of the Proxy pattern with the proxy regulating access to the Data object.
Personally, I consider it enough to program the manipulators to access the relevant fields only, but if access restriction on the data is a must for fear of malicious clients or similar, then proxy is the right thing to do.