public void setPublicTypeArn(String publicTypeArn) {
        this.publicTypeArn = publicTypeArn;
    }
<p>
The Amazon Resource Name (ARN) of the public extension.
</p>
<p>
Conditional: You must specify <code>PublicTypeArn</code>, or <code>TypeName</code>, <code>Type</code>, and
<code>PublisherId</code>.
</p>

@param publicTypeArn
       The Amazon Resource Name (ARN) of the public extension.</p>
       <p>
       Conditional: You must specify <code>PublicTypeArn</code>, or <code>TypeName</code>, <code>Type</code>, and
       <code>PublisherId</code>.
aws-java-sdk-cloudformation/src/main/java/com/amazonaws/services/cloudformation/model/ActivateTypeRequest.java