Package software.amazon.awscdk.services.greengrass

Interface CfnSubscriptionDefinitionVersion.SubscriptionProperty

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnSubscriptionDefinitionVersion.SubscriptionProperty.Jsii$Proxy

Enclosing class:

CfnSubscriptionDefinitionVersion

@Stability(Stable)
public static interface CfnSubscriptionDefinitionVersion.SubscriptionProperty
extends software.amazon.jsii.JsiiSerializable

Subscriptions define how MQTT messages can be exchanged between devices, functions, and connectors in the group, and with AWS IoT or the local shadow service.

A subscription defines a message source, message target, and a topic (or subject) that's used to route messages from the source to the target. A subscription defines the message flow in one direction, from the source to the target. For two-way communication, you must set up two subscriptions, one for each direction.

In an AWS CloudFormation template, the Subscriptions property of the AWS::Greengrass::SubscriptionDefinitionVersion resource contains a list of Subscription property types.

Example:

 // The code below shows an example of how to instantiate this type.
 // The values are placeholders you should change.
 import software.amazon.awscdk.services.greengrass.*;
 SubscriptionProperty subscriptionProperty = SubscriptionProperty.builder()
         .id("id")
         .source("source")
         .subject("subject")
         .target("target")
         .build();
 

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-subscriptiondefinitionversion-subscription.html

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final class	CfnSubscriptionDefinitionVersion.SubscriptionProperty.Builder	A builder for CfnSubscriptionDefinitionVersion.SubscriptionProperty
static final class	CfnSubscriptionDefinitionVersion.SubscriptionProperty.Jsii$Proxy	An implementation for CfnSubscriptionDefinitionVersion.SubscriptionProperty

Method Summary

Modifier and Type	Method	Description
static CfnSubscriptionDefinitionVersion.SubscriptionProperty.Builder	builder()
String	getId()	A descriptive or arbitrary ID for the subscription.
String	getSource()	The originator of the message.
String	getSubject()	The MQTT topic used to route the message.
String	getTarget()	The destination of the message.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Details

getId

@Stability(Stable)
@NotNull
String getId()

A descriptive or arbitrary ID for the subscription.

This value must be unique within the subscription definition version. Maximum length is 128 characters with pattern [a-zA-Z0-9:_-]+ .

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-subscriptiondefinitionversion-subscription.html#cfn-greengrass-subscriptiondefinitionversion-subscription-id

getSource

@Stability(Stable)
@NotNull
String getSource()

The originator of the message.

The value can be a thing ARN, the ARN of a Lambda function alias (recommended) or version, a connector ARN, cloud (which represents the AWS IoT cloud), or GGShadowService .

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-subscriptiondefinitionversion-subscription.html#cfn-greengrass-subscriptiondefinitionversion-subscription-source

getSubject

@Stability(Stable)
@NotNull
String getSubject()

The MQTT topic used to route the message.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-subscriptiondefinitionversion-subscription.html#cfn-greengrass-subscriptiondefinitionversion-subscription-subject

getTarget

@Stability(Stable)
@NotNull
String getTarget()

The destination of the message.

The value can be a thing ARN, the ARN of a Lambda function alias (recommended) or version, a connector ARN, cloud (which represents the AWS IoT cloud), or GGShadowService .

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-subscriptiondefinitionversion-subscription.html#cfn-greengrass-subscriptiondefinitionversion-subscription-target

builder

@Stability(Stable)
static CfnSubscriptionDefinitionVersion.SubscriptionProperty.Builder builder()

Returns:

a CfnSubscriptionDefinitionVersion.SubscriptionProperty.Builder of CfnSubscriptionDefinitionVersion.SubscriptionProperty