MessageCallback function ( ) { return this . messageCallback ; }
getter for the message callback . concode_field_sep AzureHubType targetHubType concode_elem_sep long TOKEN_VALID_SECS concode_elem_sep int DEFAULT_MESSAGE_LOCK_TIMEOUT_SECS concode_elem_sep Object messageContext concode_elem_sep int DEFAULT_READ_TIMEOUT_MILLIS concode_elem_sep String iotHubName concode_elem_sep String deviceKey concode_elem_sep MessageCallback messageCallback concode_elem_sep String iotHubHostname concode_elem_sep String deviceId concode_field_sep String getDeviceId concode_elem_sep void setMessageCallback concode_elem_sep int getReadTimeoutMillis concode_elem_sep int getMessageLockTimeoutSecs concode_elem_sep Object getMessageContext concode_elem_sep String getIotHubName concode_elem_sep String getDeviceKey concode_elem_sep long getTokenValidSecs concode_elem_sep String getIotHubHostname