public String getKeyId() {
        return this.keyId;
    }
<p>
The GUID for the customer-managed Amazon Web Services KMS key to use for encryption. This value can be a globally
unique identifier, a fully specified ARN to either an alias or a key, or an alias name prefixed by "alias/".You
can also use a master key owned by Kinesis Data Streams by specifying the alias <code>aws/kinesis</code>.
</p>
<ul>
<li>
<p>
Key ARN example: <code>arn:aws:kms:us-east-1:123456789012:key/12345678-1234-1234-1234-123456789012</code>
</p>
</li>
<li>
<p>
Alias ARN example: <code>arn:aws:kms:us-east-1:123456789012:alias/MyAliasName</code>
</p>
</li>
<li>
<p>
Globally unique key ID example: <code>12345678-1234-1234-1234-123456789012</code>
</p>
</li>
<li>
<p>
Alias name example: <code>alias/MyAliasName</code>
</p>
</li>
<li>
<p>
Master key owned by Kinesis Data Streams: <code>alias/aws/kinesis</code>
</p>
</li>
</ul>

@return The GUID for the customer-managed Amazon Web Services KMS key to use for encryption. This value can be a
        globally unique identifier, a fully specified ARN to either an alias or a key, or an alias name prefixed
        by "alias/".You can also use a master key owned by Kinesis Data Streams by specifying the alias
        <code>aws/kinesis</code>.</p>
        <ul>
        <li>
        <p>
        Key ARN example: <code>arn:aws:kms:us-east-1:123456789012:key/12345678-1234-1234-1234-123456789012</code>
        </p>
        </li>
        <li>
        <p>
        Alias ARN example: <code>arn:aws:kms:us-east-1:123456789012:alias/MyAliasName</code>
        </p>
        </li>
        <li>
        <p>
        Globally unique key ID example: <code>12345678-1234-1234-1234-123456789012</code>
        </p>
        </li>
        <li>
        <p>
        Alias name example: <code>alias/MyAliasName</code>
        </p>
        </li>
        <li>
        <p>
        Master key owned by Kinesis Data Streams: <code>alias/aws/kinesis</code>
        </p>
        </li>
aws-java-sdk-kinesis/src/main/java/com/amazonaws/services/kinesis/model/StreamDescription.java