Package software.amazon.awssdk.services.greengrassv2.model

Class LambdaExecutionParameters

    • Method Detail

      • hasEventSources

        public final boolean hasEventSources()
        For responses, this returns true if the service returned a value for the EventSources property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

      • eventSources

        public final List<LambdaEventSource> eventSources()

        The list of event sources to which to subscribe to receive work messages. The Lambda function runs when it receives a message from an event source. You can subscribe this function to local publish/subscribe messages and Amazon Web Services IoT Core MQTT messages.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasEventSources() method.

        Returns:
        The list of event sources to which to subscribe to receive work messages. The Lambda function runs when it receives a message from an event source. You can subscribe this function to local publish/subscribe messages and Amazon Web Services IoT Core MQTT messages.

      • maxQueueSize

        public final Integer maxQueueSize()

        The maximum size of the message queue for the Lambda function component. The IoT Greengrass core stores messages in a FIFO (first-in-first-out) queue until it can run the Lambda function to consume each message.

        Returns:
        The maximum size of the message queue for the Lambda function component. The IoT Greengrass core stores messages in a FIFO (first-in-first-out) queue until it can run the Lambda function to consume each message.

      • maxInstancesCount

        public final Integer maxInstancesCount()

        The maximum number of instances that a non-pinned Lambda function can run at the same time.

        Returns:
        The maximum number of instances that a non-pinned Lambda function can run at the same time.

      • maxIdleTimeInSeconds

        public final Integer maxIdleTimeInSeconds()

        The maximum amount of time in seconds that a non-pinned Lambda function can idle before the IoT Greengrass Core software stops its process.

        Returns:
        The maximum amount of time in seconds that a non-pinned Lambda function can idle before the IoT Greengrass Core software stops its process.

      • timeoutInSeconds

        public final Integer timeoutInSeconds()

        The maximum amount of time in seconds that the Lambda function can process a work item.

        Returns:
        The maximum amount of time in seconds that the Lambda function can process a work item.

      • statusTimeoutInSeconds

        public final Integer statusTimeoutInSeconds()

        The interval in seconds at which a pinned (also known as long-lived) Lambda function component sends status updates to the Lambda manager component.

        Returns:
        The interval in seconds at which a pinned (also known as long-lived) Lambda function component sends status updates to the Lambda manager component.

      • pinned

        public final Boolean pinned()

        Whether or not the Lambda function is pinned, or long-lived.

        • A pinned Lambda function starts when IoT Greengrass starts and keeps running in its own container.

        • A non-pinned Lambda function starts only when it receives a work item and exists after it idles for maxIdleTimeInSeconds. If the function has multiple work items, the IoT Greengrass Core software creates multiple instances of the function.

        Default: true

        Returns:
        Whether or not the Lambda function is pinned, or long-lived.

        • A pinned Lambda function starts when IoT Greengrass starts and keeps running in its own container.

        • A non-pinned Lambda function starts only when it receives a work item and exists after it idles for maxIdleTimeInSeconds. If the function has multiple work items, the IoT Greengrass Core software creates multiple instances of the function.

        Default: true

      • hasExecArgs

        public final boolean hasExecArgs()
        For responses, this returns true if the service returned a value for the ExecArgs property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

      • execArgs

        public final List<String> execArgs()

        The list of arguments to pass to the Lambda function when it runs.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasExecArgs() method.

        Returns:
        The list of arguments to pass to the Lambda function when it runs.

      • hasEnvironmentVariables

        public final boolean hasEnvironmentVariables()
        For responses, this returns true if the service returned a value for the EnvironmentVariables property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

      • environmentVariables

        public final Map<String,​String> environmentVariables()

        The map of environment variables that are available to the Lambda function when it runs.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasEnvironmentVariables() method.

        Returns:
        The map of environment variables that are available to the Lambda function when it runs.

      • linuxProcessParams

        public final LambdaLinuxProcessParams linuxProcessParams()

        The parameters for the Linux process that contains the Lambda function.

        Returns:
        The parameters for the Linux process that contains the Lambda function.

      • hashCode

        public final int hashCode()
        Overrides:
        hashCode in class Object

      • equals

        public final boolean equals​(Object obj)
        Overrides:
        equals in class Object

      • toString

        public final String toString()
        Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.
        Overrides:
        toString in class Object

      • getValueForField

        public final <T> Optional<T> getValueForField​(String fieldName,
                                              Class<T> clazz)