java - Multiple value as key in Map Collection -

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problem: storing sql statements of table in map pk value of table maps corresponding insert/select statement. came across table uses composite key(4 pk ).

now base of logic shaken far read array cannot used key in map there way can on come ?

i declaring map below 

map<string, string> pkmap= new map<string, string>();

where key primary key of table .

note: processing few tables in db not of them have 4 pk composite key few may have 2 or 1

you use list<string> key (or list<object> if want support heterogeneous types). 2 lists equal if have same size , if members equal.


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