returns whether or not there exists a purchase of the given product . concode_field_sep Map<String,SkuDetails> mSkuMap concode_elem_sep Map<String,Purchase> mPurchaseMap concode_field_sep void erasePurchase concode_elem_sep List<String> getAllOwnedSkus concode_elem_sep List<String> getAllOwnedSkus concode_elem_sep void addSkuDetails concode_elem_sep Purchase getPurchase concode_elem_sep boolean hasDetails concode_elem_sep List<Purchase> getAllPurchases concode_elem_sep void addPurchase concode_elem_sep SkuDetails getSkuDetails
boolean function ( String arg0 ) { return mPurchaseMap . containsKey ( arg0 ) ; }