+ userInfoId + ", docMeta=" + docMeta + "]";
    }

    @Override
    public String getEventType() {
        return "favorite";
    }

                + userInfoId + ", userSessionId=" + userSessionId + ", virtualHost=" + virtualHost + ", documents=" + documentList + "]";
    }

    @Override
    public String getEventType() {
        return "log";
    }

    }

    @Override
    public String toString() {
        return "UserInfo [createdAt=" + createdAt + ", updatedAt=" + updatedAt + ", docMeta=" + docMeta + "]";
    }

    @Override
    public String getEventType() {
        return "user";
    }

     */
    Map<String, Object> toSource();

    /**
     * Gets the type of this search log event.
     *
     * @return The event type (e.g., "search", "click", "favorite", "user_info")
     */
    String getEventType();

                + docId + ", userSessionId=" + userSessionId + ", url=" + url + ", order=" + order + ", docMeta=" + docMeta + "]";
    }

    @Override
    public String getEventType() {
        return "click";
    }