question: public void makeUnique ( String [ ] columns , String conflictPolicy ) { uniques . add ( CONSTRAINT_UNIQUE_ + TextUtils . join ( "_" , columns ) + _UNIQUE__ + TextUtils . join ( "," , columns ) + __ON_CONFLICT_ + conflictPolicy + COMMA ) ; }
target:  create a unique constraint to already declared columns using the specified conflict policy. ATENTION: It does not add the columns to the table, you need to add the columns using addColumn or addFK