public void setKmsKeyId(String kmsKeyId) {
        this.kmsKeyId = kmsKeyId;
    }
<p>
The identifier of the new KMS key (<code>KmsKeyId</code>) to be used to encrypt the data stored in the database.
If the <code>KmsKeyId</code> currently registered with the database is the same as the <code>KmsKeyId</code> in
the request, there will not be any update.
</p>
<p>
You can specify the <code>KmsKeyId</code> using any of the following:
</p>
<ul>
<li>
<p>
Key ID: <code>1234abcd-12ab-34cd-56ef-1234567890ab</code>
</p>
</li>
<li>
<p>
Key ARN: <code>arn:aws:kms:us-east-1:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab</code>
</p>
</li>
<li>
<p>
Alias name: <code>alias/ExampleAlias</code>
</p>
</li>
<li>
<p>
Alias ARN: <code>arn:aws:kms:us-east-1:111122223333:alias/ExampleAlias</code>
</p>
</li>
</ul>

@param kmsKeyId
       The identifier of the new KMS key (<code>KmsKeyId</code>) to be used to encrypt the data stored in the
       database. If the <code>KmsKeyId</code> currently registered with the database is the same as the
       <code>KmsKeyId</code> in the request, there will not be any update. </p>
       <p>
       You can specify the <code>KmsKeyId</code> using any of the following:
       </p>
       <ul>
       <li>
       <p>
       Key ID: <code>1234abcd-12ab-34cd-56ef-1234567890ab</code>
       </p>
       </li>
       <li>
       <p>
       Key ARN: <code>arn:aws:kms:us-east-1:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab</code>
       </p>
       </li>
       <li>
       <p>
       Alias name: <code>alias/ExampleAlias</code>
       </p>
       </li>
       <li>
       <p>
       Alias ARN: <code>arn:aws:kms:us-east-1:111122223333:alias/ExampleAlias</code>
       </p>
       </li>
aws-java-sdk-timestreamwrite/src/main/java/com/amazonaws/services/timestreamwrite/model/UpdateDatabaseRequest.java