@Override
            public String getIndexFieldRole() {
                return "role";
            }

            @Override
            public String getIndexFieldSeqNo() {
                return "seq_no";
            }

            @Override
            public String getIndexFieldVersion() {
                return "version";
            }

            @Override

            @Override
            public String getIndexFieldRole() {
                return "role";
            }

            @Override
            public String getIndexFieldSeqNo() {
                return "seq_no";
            }

            @Override
            public String getIndexFieldVersion() {
                return "version";
            }
        };
    }

            @Override
            public String getIndexFieldRole() {
                return "role";
            }

            @Override
            public String getIndexFieldSeqNo() {
                return "seq_no";
            }

            @Override
            public String getIndexFieldVersion() {
                return "version";
            }
        };
        ComponentUtil.setFessConfig(fessConfig);

index.field.doc_id=doc_id
# Field name for internal ID in the index.
index.field.id=_id
# Field name for version in the index.
index.field.version=_version
# Field name for sequence number in the index.
index.field.seq_no=_seq_no
# Field name for primary term in the index.
index.field.primary_term=_primary_term
# Field name for language in the index.
index.field.lang=lang
# Field name for cache status in the index.

        assertNull(form.id);
        assertNull(form.seqNo);
        assertNull(form.primaryTerm);
        assertNull(form.crudMode);

        form.id = "test-id";
        form.seqNo = 1L;
        form.primaryTerm = 1L;
        form.crudMode = CrudMode.EDIT;

        assertEquals("test-id", form.id);
        assertEquals(1L, form.seqNo.longValue());
        assertEquals(1L, form.primaryTerm.longValue());

            final long seqNo = getLongValue(result, "_seq_no");
            final long primaryTerm = getLongValue(result, "_primary_term");
            try (CurlResponse deleteResponse = ComponentUtil.getCurlHelper() //
                    .delete("/" + getIndexName() + "/_doc/" + operationName //
                            + "?refresh=true&if_seq_no=" + seqNo + "&if_primary_term=" + primaryTerm) //

    /** The key of the configuration. e.g. _version */
    String INDEX_FIELD_VERSION = "index.field.version";

    /** The key of the configuration. e.g. _seq_no */
    String INDEX_FIELD_seq_no = "index.field.seq_no";

    /** The key of the configuration. e.g. _primary_term */
    String INDEX_FIELD_primary_term = "index.field.primary_term";

    /** The key of the configuration. e.g. lang */

        if (indexOption != null) {
            indexOption.callback(builder);
        }
        final Long seqNo = esEntity.asDocMeta().seqNo();
        if (seqNo != null && seqNo.longValue() != SequenceNumbers.UNASSIGNED_SEQ_NO) {
            esEntity.asDocMeta().seqNo(seqNo);
        }
        final Long primaryTerm = esEntity.asDocMeta().primaryTerm();

        if (indexOption != null) {
            indexOption.callback(builder);
        }
        final Long seqNo = esEntity.asDocMeta().seqNo();
        if (seqNo != null && seqNo.longValue() != SequenceNumbers.UNASSIGNED_SEQ_NO) {
            esEntity.asDocMeta().seqNo(seqNo);
        }
        final Long primaryTerm = esEntity.asDocMeta().primaryTerm();

        }

        public Long version() {
            return version;
        }

        public DocMeta seqNo(Long seqNo) {
            this.seqNo = seqNo;
            return this;
        }

        public Long seqNo() {
            return seqNo;
        }

        public DocMeta primaryTerm(Long primaryTerm) {
            this.primaryTerm = primaryTerm;
            return this;