Package software.amazon.awscdk

Class CfnWaitConditionHandle

java.lang.Object
software.amazon.jsii.JsiiObject
software.constructs.Construct
software.amazon.awscdk.CfnElement
software.amazon.awscdk.CfnRefElement
software.amazon.awscdk.CfnResource
software.amazon.awscdk.CfnWaitConditionHandle
All Implemented Interfaces:
IInspectable, software.amazon.jsii.JsiiSerializable, software.constructs.IConstruct, software.constructs.IDependable
@Generated(value="jsii-pacmak/1.103.1 (build bef2dea)", date="2024-10-05T03:43:37.480Z") @Stability(Stable) public class CfnWaitConditionHandle extends CfnResource implements IInspectable

For Amazon EC2 and Auto Scaling resources, we recommend that you use a CreationPolicy attribute instead of wait conditions.

Add a CreationPolicy attribute to those resources, and use the cfn-signal helper script to signal when an instance creation process has completed successfully.

For more information, see Deploying applications on Amazon EC2 with AWS CloudFormation .

The AWS::CloudFormation::WaitConditionHandle type has no properties. When you reference the WaitConditionHandle resource by using the Ref function, AWS CloudFormation returns a presigned URL. You pass this URL to applications or scripts that are running on your Amazon EC2 instances to send signals to that URL. An associated AWS::CloudFormation::WaitCondition resource checks the URL for the required number of success signals or for a failure signal.

Anytime you add a WaitCondition resource during a stack update or update a resource with a wait condition, you must associate the wait condition with a new WaitConditionHandle resource. Don't reuse an old wait condition handle that has already been defined in the template. If you reuse a wait condition handle, the wait condition might evaluate old signals from a previous create or update stack command. > Updates aren't supported for this resource.

Example: 

 // The code below shows an example of how to instantiate this type.
 // The values are placeholders you should change.
 import software.amazon.awscdk.*;
 CfnWaitConditionHandle cfnWaitConditionHandle = CfnWaitConditionHandle.Builder.create(this, "MyCfnWaitConditionHandle").build();

See Also:

  • Field Details

    • CFN_RESOURCE_TYPE_NAME

      @Stability(Stable) public static final String CFN_RESOURCE_TYPE_NAME
      The CloudFormation resource type name for this resource class.

  • Constructor Details

    • CfnWaitConditionHandle

      protected CfnWaitConditionHandle(software.amazon.jsii.JsiiObjectRef objRef)

    • CfnWaitConditionHandle

      protected CfnWaitConditionHandle(software.amazon.jsii.JsiiObject.InitializationMode initializationMode)

    • CfnWaitConditionHandle

      @Stability(Stable) public CfnWaitConditionHandle(@NotNull software.constructs.Construct scope, @NotNull String id, @Nullable CfnWaitConditionHandleProps props)
      Parameters:
      scope - Scope in which this resource is defined. This parameter is required.
      id - Construct identifier for this resource (unique in its scope). This parameter is required.
      props - Resource properties.

    • CfnWaitConditionHandle

      @Stability(Stable) public CfnWaitConditionHandle(@NotNull software.constructs.Construct scope, @NotNull String id)
      Parameters:
      scope - Scope in which this resource is defined. This parameter is required.
      id - Construct identifier for this resource (unique in its scope). This parameter is required.

  • Method Details

    • inspect

      @Stability(Stable) public void inspect(@NotNull TreeInspector inspector)
      Examines the CloudFormation resource and discloses attributes.

      Specified by:
      inspect in interface IInspectable
      Parameters:
      inspector - tree inspector to collect and process attributes. This parameter is required.

    • renderProperties

      @Stability(Stable) @NotNull protected Map<String,Object> renderProperties(@NotNull Map<String,Object> props)
      Overrides:
      renderProperties in class CfnResource
      Parameters:
      props - This parameter is required.

    • getAttrId

      @Stability(Stable) @NotNull public String getAttrId()
      A unique identifier for the resource.

    • getCfnProperties

      @Stability(Stable) @NotNull protected Map<String,Object> getCfnProperties()
      Overrides:
      getCfnProperties in class CfnResource