com.amazonaws.services.route53.model

Class AliasTarget

java.lang.Object

com.amazonaws.services.route53.model.AliasTarget

All Implemented Interfaces:

Serializable, Cloneable

public class AliasTarget
extends Object
implements Serializable, Cloneable

Alias resource record sets only: Information about the CloudFront distribution, ELB load balancer, Amazon S3 bucket, or Amazon Route 53 resource record set to which you are routing traffic.

If you're creating resource record sets for a private hosted zone, note the following:

• You can create alias resource record sets only for Amazon Route 53 resource record sets in the same private hosted zone. Creating alias resource record sets for CloudFront distributions, ELB load balancers, and Amazon S3 buckets is not supported.
• You can't create alias resource record sets for failover, geolocation, or latency resource record sets in a private hosted zone.

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AliasTarget() Default constructor for AliasTarget object.
AliasTarget(String hostedZoneId, String dNSName) Constructs a new AliasTarget object.

Method Summary

Modifier and Type	Method and Description
AliasTarget	clone()
boolean	equals(Object obj)
String	getDNSName() Alias resource record sets only: The external DNS name associated with the AWS Resource.
Boolean	getEvaluateTargetHealth() Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
String	getHostedZoneId() Alias resource record sets only: The value you use depends on where you want to route queries:
int	hashCode()
Boolean	isEvaluateTargetHealth() Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
void	setDNSName(String dNSName) Alias resource record sets only: The external DNS name associated with the AWS Resource.
void	setEvaluateTargetHealth(Boolean evaluateTargetHealth) Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
void	setHostedZoneId(String hostedZoneId) Alias resource record sets only: The value you use depends on where you want to route queries:
String	toString() Returns a string representation of this object; useful for testing and debugging.
AliasTarget	withDNSName(String dNSName) Alias resource record sets only: The external DNS name associated with the AWS Resource.
AliasTarget	withEvaluateTargetHealth(Boolean evaluateTargetHealth) Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
AliasTarget	withHostedZoneId(String hostedZoneId) Alias resource record sets only: The value you use depends on where you want to route queries:

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

AliasTarget

public AliasTarget()

Default constructor for AliasTarget object. Callers should use the setter or fluent setter (with...) methods to initialize the object after creating it.

AliasTarget

public AliasTarget(String hostedZoneId,
                   String dNSName)

Constructs a new AliasTarget object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.

Parameters:

hostedZoneId - Alias resource record sets only: The value you use depends on where you want to route queries:

• A CloudFront distribution: Specify Z2FDTNDATAQYW2.
• An ELB load balancer: Specify the value of the hosted zone ID for the load balancer. You can get the hosted zone ID by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Amazon S3 bucket that is configured as a static website: Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference.
• Another Amazon Route 53 resource record set in your hosted zone: Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference

dNSName - Alias resource record sets only: The external DNS name associated with the AWS Resource. The value that you specify depends on where you want to route queries:

• A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
• An ELB load balancer: Specify the DNS name associated with the load balancer. You can get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.)
• An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
• Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference

Method Detail

setHostedZoneId

public void setHostedZoneId(String hostedZoneId)

Alias resource record sets only: The value you use depends on where you want to route queries:

• A CloudFront distribution: Specify Z2FDTNDATAQYW2 .
• An ELB load balancer: Specify the value of the hosted zone ID for the load balancer. You can get the hosted zone ID by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Amazon S3 bucket that is configured as a static website: Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference.
• Another Amazon Route 53 resource record set in your hosted zone: Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference.

Parameters:

hostedZoneId - Alias resource record sets only: The value you use depends on where you want to route queries:

• A CloudFront distribution: Specify Z2FDTNDATAQYW2.
• An ELB load balancer: Specify the value of the hosted zone ID for the load balancer. You can get the hosted zone ID by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Amazon S3 bucket that is configured as a static website: Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference.
• Another Amazon Route 53 resource record set in your hosted zone: Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference

getHostedZoneId

public String getHostedZoneId()

Alias resource record sets only: The value you use depends on where you want to route queries:

• A CloudFront distribution: Specify Z2FDTNDATAQYW2 .
• An ELB load balancer: Specify the value of the hosted zone ID for the load balancer. You can get the hosted zone ID by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Amazon S3 bucket that is configured as a static website: Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference.
• Another Amazon Route 53 resource record set in your hosted zone: Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference.

Returns:

Alias resource record sets only: The value you use depends on where you want to route queries:

• A CloudFront distribution: Specify Z2FDTNDATAQYW2.
• An ELB load balancer: Specify the value of the hosted zone ID for the load balancer. You can get the hosted zone ID by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Amazon S3 bucket that is configured as a static website: Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference.
• Another Amazon Route 53 resource record set in your hosted zone: Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference

withHostedZoneId

public AliasTarget withHostedZoneId(String hostedZoneId)

Alias resource record sets only: The value you use depends on where you want to route queries:

• A CloudFront distribution: Specify Z2FDTNDATAQYW2 .
• An ELB load balancer: Specify the value of the hosted zone ID for the load balancer. You can get the hosted zone ID by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Amazon S3 bucket that is configured as a static website: Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference.
• Another Amazon Route 53 resource record set in your hosted zone: Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference.

Parameters:

hostedZoneId - Alias resource record sets only: The value you use depends on where you want to route queries:

• A CloudFront distribution: Specify Z2FDTNDATAQYW2.
• An ELB load balancer: Specify the value of the hosted zone ID for the load balancer. You can get the hosted zone ID by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Amazon S3 bucket that is configured as a static website: Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference.
• Another Amazon Route 53 resource record set in your hosted zone: Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference

Returns:

Returns a reference to this object so that method calls can be chained together.

setDNSName

public void setDNSName(String dNSName)

Alias resource record sets only: The external DNS name associated with the AWS Resource. The value that you specify depends on where you want to route queries:

• A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
• An ELB load balancer: Specify the DNS name associated with the load balancer. You can get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.)
• An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
• Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference.

Parameters:

dNSName - Alias resource record sets only: The external DNS name associated with the AWS Resource. The value that you specify depends on where you want to route queries:

• A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
• An ELB load balancer: Specify the DNS name associated with the load balancer. You can get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.)
• An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
• Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference

getDNSName

public String getDNSName()

Alias resource record sets only: The external DNS name associated with the AWS Resource. The value that you specify depends on where you want to route queries:

• A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
• An ELB load balancer: Specify the DNS name associated with the load balancer. You can get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.)
• An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
• Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference.

Returns:

Alias resource record sets only: The external DNS name associated with the AWS Resource. The value that you specify depends on where you want to route queries:

• A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
• An ELB load balancer: Specify the DNS name associated with the load balancer. You can get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.)
• An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
• Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference

withDNSName

public AliasTarget withDNSName(String dNSName)

Alias resource record sets only: The external DNS name associated with the AWS Resource. The value that you specify depends on where you want to route queries:

• A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
• An ELB load balancer: Specify the DNS name associated with the load balancer. You can get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.)
• An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
• Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference.

Parameters:

dNSName - Alias resource record sets only: The external DNS name associated with the AWS Resource. The value that you specify depends on where you want to route queries:

• A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
• An ELB load balancer: Specify the DNS name associated with the load balancer. You can get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
• An Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.)
• An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
• Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.

For more information and an example, see Example: Creating Alias Resource Record Sets in the Amazon Route 53 API Reference

Returns:

Returns a reference to this object so that method calls can be chained together.

setEvaluateTargetHealth

public void setEvaluateTargetHealth(Boolean evaluateTargetHealth)

Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.

In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:

1. Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
2. Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
3. Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
4. Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.

Note the following:

• You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
• If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
• If you specify an ELB load balancer in AliasTarget, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources.
• When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developer Guide.

We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.

For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.

Parameters:

evaluateTargetHealth - Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.

In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:

1. Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
2. Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
3. Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
4. Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.

Note the following:

• You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
• If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
• If you specify an ELB load balancer in AliasTarget, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources.
• When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developer Guide.

We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.

For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide

getEvaluateTargetHealth

public Boolean getEvaluateTargetHealth()

Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.

In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:

1. Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
2. Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
3. Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
4. Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.

Note the following:

• You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
• If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
• If you specify an ELB load balancer in AliasTarget, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources.
• When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developer Guide.

We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.

For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.

Returns:

Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.

In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:

1. Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
2. Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
3. Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
4. Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.

Note the following:

• You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
• If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
• If you specify an ELB load balancer in AliasTarget, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources.
• When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developer Guide.

We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.

For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide

withEvaluateTargetHealth

public AliasTarget withEvaluateTargetHealth(Boolean evaluateTargetHealth)

Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.

In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:

1. Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
2. Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
3. Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
4. Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.

Note the following:

• You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
• If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
• If you specify an ELB load balancer in AliasTarget, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources.
• When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developer Guide.

We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.

For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.

Parameters:

evaluateTargetHealth - Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.

In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:

1. Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
2. Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
3. Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
4. Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.

Note the following:

• You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
• If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
• If you specify an ELB load balancer in AliasTarget, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources.
• When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developer Guide.

We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.

For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide

Returns:

Returns a reference to this object so that method calls can be chained together.

isEvaluateTargetHealth

public Boolean isEvaluateTargetHealth()

Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.

In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:

1. Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
2. Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
3. Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
4. Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.

Note the following:

• You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
• If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
• If you specify an ELB load balancer in AliasTarget, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources.
• When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developer Guide.

We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.

For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.

Returns:

Alias resource record sets only: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheckId for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.

In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:

1. Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
2. Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
3. Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
4. Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.

Note the following:

• You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
• If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target. For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
• If you specify an ELB load balancer in AliasTarget, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources.
• When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developer Guide.

We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.

For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide

toString

public String toString()

Returns a string representation of this object; useful for testing and debugging.

Overrides:

toString in class Object

Returns:

A string representation of this object.

See Also:

Object.toString()

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

clone

public AliasTarget clone()

Overrides:

clone in class Object