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Name Description
MerchantPed Extends  AdyenPed.  Class used to implement all PIN entry device (PED) functionality.

Special tender parameter

Name Type Description
specialTender SpecialTender Holds tender attributes.

Use the SpecialTenderBuilder to create the SpecialTender object:


Use put to set special options

Name Description


Allows you to add a special option as a key value pair.

Add special options parameters to the specialTender using the specialOptions.put method. 

Name Type Required Description
cardNumber  String -x- The scanned number from the wallet app (to be provided only for Flow 3: Cash register scans Shopper barcode)
forceEntryMode String -white_check_mark- The entry mode for the transaction. In this case, use the value "Keyed".
specialOptions.put("cardNumber", "60362821657200117610");

Instantiate special tender options

Name Type Description
specialOptions SpecialOptions Holds tender attributes.


Name Type Required Description
transactionType String -white_check_mark-

Type of transaction. TransactionType takes the following value:

  • payment
paymentMethodType String -white_check_mark-

The type of payment method, in this case wallets. PaymentMethodType takes the following values:

    • Pass "alipay" for an Alipay transaction.
    • Pass "wechatpay_pos" for WeChat Pay transaction.



Shopper identification (used for omni-channel digital customer recognition).




Shopper identification (used for omni-channel digital customer recognition).
merchantAccount String -white_check_mark-

The transaction reference provided by the Merchant (reported in the Adyen payments platform).




The transaction reference provided by the Merchant (reported in the Adyen payments platform).

currency long -white_check_mark- The transaction currency.



The transaction amount in minor units (100 is 1.00 with EUR). The Amount field should be a strong typed field with a string for currency code and a number (long) for the minor digits value (similar to the current API (of the terminal)).

specialOptions SpecialTenderOptions -x-

Holds tender attributes.

  • cardNumber 
  • forceEntryMode
handleReceipt Boolean -x-

Specifies that the POS handles and prints receipts. If omitted, it is required that the PED prints the receipt. If there is no printer unit, the transaction will fail.

Instantiate specialOptions by assigning it to the result of the SpecialTender getter specialtender.getSpecialOptions()

SpecialOptions specialOptions = specialTender.getSpecialOptions();

Call the method

Name Description


Creates a tender using a number of attributes.


Determine the current and final tender state

Adyen provides a method to determine the current, or final, tender state. For more information, see Determine the current and final tender state - JNI.


Name Description
progressCallback Reports the progress on a running tender
tenderPrintReceiptCallback Returns the receipt for printing, and requests that the POS confirms it has received the receipt.
finalCallback When the system finishes processing the tender, it triggers the final state callback.