Java - Maps inside a Map or Key Object? -

Java - Maps inside a Map or Key Object? -

hi having 3 attributes (string) needed identify object.

what improve solution:

using key object post pierre , joachim sauer this:

public class mykey{ private string one; private string two; private string three; public mykey(sting one,string two, string three){ this.one=one; this.two=two; this.three=three; } //getter @override public int hashcode(){ // creating hashcode } @override public boolean equals(object o){ // comparing } }

=> map<mykey, object>

or using map within map within map:

=> map<string, map<string, map<string, object>>>

i think should go first option. reason beingness more clean , flexible. imagine few months downwards line need add together element key, construction invalid since requires 1 more level of nesting, not mention making more complex.

java