* Retrieves the depth of the URL in the queue.
     *
     * @return the depth of the URL as an Integer.
     */
    Integer getDepth();

    /**
     * Sets the depth of the URL in the queue.
     *
     * @param depth the depth to set, represented as an Integer.
     */
    void setDepth(Integer depth);

    /**
     * Returns the last modified timestamp of the URL in the queue.
     *

        return parent != null && parent.parent == null;
    }

    public Iterator<ResolutionNode> getChildrenIterator() {
        return children.iterator();
    }

    public int getDepth() {
        return depth;
    }

    public List<ArtifactRepository> getRemoteRepositories() {
        return remoteRepositories;
    }

    public boolean isActive() {
        return active;

                "createdTime");
        setupEpg(_epgMap, et -> ((FileConfig) et).getDepth(), (et, vl) -> ((FileConfig) et).setDepth(DfTypeUtil.toInteger(vl)), "depth");
        setupEpg(_epgMap, et -> ((FileConfig) et).getDescription(), (et, vl) -> ((FileConfig) et).setDescription(DfTypeUtil.toString(vl)),
                "description");

        setupEpg(_epgMap, et -> ((WebConfig) et).getCreatedTime(), (et, vl) -> ((WebConfig) et).setCreatedTime(DfTypeUtil.toLong(vl)),
                "createdTime");
        setupEpg(_epgMap, et -> ((WebConfig) et).getDepth(), (et, vl) -> ((WebConfig) et).setDepth(DfTypeUtil.toInteger(vl)), "depth");
        setupEpg(_epgMap, et -> ((WebConfig) et).getDescription(), (et, vl) -> ((WebConfig) et).setDescription(DfTypeUtil.toString(vl)),
                "description");

            try {
                storeChildUrls(childUrlSet.stream().filter(rd -> StringUtil.isNotBlank(rd.getUrl())).collect(Collectors.toSet()),
                        urlQueue.getUrl(), urlQueue.getDepth() != null ? urlQueue.getDepth() + 1 : 1);
            } catch (final Throwable t) {
                if (!ComponentUtil.available()) {
                    throw new ContainerNotAvailableException(t);
                }

    public void setCreatedTime(Long value) {
        registerModifiedProperty("createdTime");
        this.createdTime = value;
    }

    public Integer getDepth() {
        checkSpecifiedProperty("depth");
        return depth;
    }

    public void setDepth(Integer value) {
        registerModifiedProperty("depth");
        this.depth = value;
    }

    public String getDescription() {

    public void setCreatedTime(Long value) {
        registerModifiedProperty("createdTime");
        this.createdTime = value;
    }

    public Integer getDepth() {
        checkSpecifiedProperty("depth");
        return depth;
    }

    public void setDepth(Integer value) {
        registerModifiedProperty("depth");
        this.depth = value;
    }

    public String getDescription() {

            return null;
        }

        @Override
        public String getParentUrl() {
            return null;
        }

        @Override
        public Integer getDepth() {
            return 0;
        }

        @Override
        public String getMethod() {
            return null;
        }

        @Override
        public Long getLastModified() {

            updateScope = true;
        }

        /* current POM rules all, if nearest is in current pom, do not update its artifactScope */
        if ((nearest.getDepth() < 2) && updateScope) {
            updateScope = false;

            fireEvent(ResolutionListener.UPDATE_SCOPE_CURRENT_POM, listeners, nearest, farthestArtifact);
        }

        if (updateScope) {

        urlQueue.setDepth(1);
        urlQueue.setMethod("GET");
        urlQueue.setSessionId("id1");
        urlQueue.setUrl("http://www.id1.com/");

        urlQueueService.insert(urlQueue);

        final OpenSearchUrlQueue urlQueue2 = new OpenSearchUrlQueue();
        urlQueue2.setCreateTime(System.currentTimeMillis());
        urlQueue2.setDepth(1);
        urlQueue2.setMethod("GET");