public KeyNameConstraint getKeyNameConstraint() {
        return this.keyNameConstraint;
    }
<p>
If provided, the generated manifest includes only source bucket objects whose object keys match the string
constraints specified for <code>MatchAnyPrefix</code>, <code>MatchAnySuffix</code>, and
<code>MatchAnySubstring</code>.
</p>

@return If provided, the generated manifest includes only source bucket objects whose object keys match the
        string constraints specified for <code>MatchAnyPrefix</code>, <code>MatchAnySuffix</code>, and
        <code>MatchAnySubstring</code>.
aws-java-sdk-s3control/src/main/java/com/amazonaws/services/s3control/model/JobManifestGeneratorFilter.java