Method Detail

• onOptionChainRecap

  void onOptionChainRecap(MamdaSubscription subscription,
                          MamdaOptionChainListener listener,
                          com.wombat.mama.MamaMsg msg,
                          MamdaOptionChain chain)

  Method invoked when an updated full option chain is available. The reason for the invocation may be any of the following: - Initial image. - Recap update (e.g., after server fault tolerant event or data quality event.) - After stale status removed.

  Parameters:

  subscription - The subscription which received the udpate.

  listener - The listener which invoked the callback.

  msg - The MamaMsg that triggered this invocation.

  chain - The full option chain.

• onOptionContractCreate

  void onOptionContractCreate(MamdaSubscription subscription,
                              MamdaOptionChainListener listener,
                              com.wombat.mama.MamaMsg msg,
                              MamdaOptionContract contract,
                              MamdaOptionChain chain)

  Method invoked when a new contract is created in the option chain. This method gets invoked exactly once for every option contract in the chain. The primary purpose of this method is to allow a user application to initialize any per-contract data as well to register handlers for trades and quotes. Note: This method differs from onOptionSeriesUpdate() as follows: onOptionContractCreate() gets invoked every time a contract is added, even for the initial value; onOptionSeriesUpdate() is intended to report especially interesting events and is only invoked when a contract is added/removed after the initial value has been received.

  Parameters:

  subscription - The subscription which received the update.

  listener - The listener which invoked the callback.

  msg - The MamaMsg that triggered this invocation.

  contract - The newly created option contract.

  chain - The full option chain.

• onOptionSeriesUpdate

  void onOptionSeriesUpdate(MamdaSubscription subscription,
                            MamdaOptionChainListener listener,
                            com.wombat.mama.MamaMsg msg,
                            MamdaOptionSeriesUpdate event,
                            MamdaOptionChain chain)

  Method invoked upon when a new contract is added to or removed from the option chain, excluding upon receipt of the initial value. This method is typically invoked inly for special events, such as when options are added intraday or when options expire. Note: onOptionContractCreate() is also invoked when an option is added intraday.

  Parameters:

  subscription - The subscription which received the update.

  listener - The listener which invoked the callback.

  msg - The MamaMsg that triggered this invocation.

  event - Access to details from the option series update event.

  chain - The full option chain.

  See Also:

  onOptionContractCreate(com.wombat.mamda.MamdaSubscription, com.wombat.mamda.options.MamdaOptionChainListener, com.wombat.mama.MamaMsg, com.wombat.mamda.options.MamdaOptionContract, com.wombat.mamda.options.MamdaOptionChain)