public String getIdNamespaceArn() {
        return this.idNamespaceArn;
    }
<p>
The Amazon Resource Name (ARN) of the ID namespace.
</p>

@return The Amazon Resource Name (ARN) of the ID namespace.
aws-java-sdk-entityresolution/src/main/java/com/amazonaws/services/entityresolution/model/GetIdNamespaceResult.java