public CreateRedshiftIdcApplicationRequest withIdentityNamespace(String identityNamespace) {
        setIdentityNamespace(identityNamespace);
        return this;
    }
<p>
The namespace for the Amazon Redshift IAM Identity Center application instance. It determines which managed
application verifies the connection token.
</p>

@param identityNamespace
       The namespace for the Amazon Redshift IAM Identity Center application instance. It determines which
       managed application verifies the connection token.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/CreateRedshiftIdcApplicationRequest.java