private boolean newerFirst = true;

    @Override
    public MetadataGraphEdge apply(MetadataGraphEdge e1, MetadataGraphEdge e2) {
        int depth1 = e1.getDepth();
        int depth2 = e2.getDepth();

        if (depth1 == depth2) {
            ArtifactVersion v1 = new DefaultArtifactVersion(e1.getVersion());
            ArtifactVersion v2 = new DefaultArtifactVersion(e2.getVersion());

        return scope;
    }

    public void setScope(ArtifactScopeEnum scope) {
        this.scope = scope;
    }

    public int getDepth() {
        return depth;
    }

    public void setDepth(int depth) {
        this.depth = depth;
    }

    public boolean isResolved() {
        return resolved;
    }

    public void setResolved(boolean resolved) {
        this.resolved = resolved;

    public void setDepth_Equal(Integer depth) {
        setDepth_Term(depth, null);
    }

    public void setDepth_Equal(Integer depth, ConditionOptionCall<TermQueryBuilder> opLambda) {
        setDepth_Term(depth, opLambda);
    }

    public void setDepth_Term(Integer depth) {
        setDepth_Term(depth, null);
    }

        this.remoteRepositories = remoteRepositories;
        depth = 0;
        parents = Collections.emptyList();
        parent = null;
    }

    public ResolutionNode(Artifact artifact, List<ArtifactRepository> remoteRepositories, ResolutionNode parent) {
        this.artifact = artifact;
        this.remoteRepositories = remoteRepositories;
        depth = parent.depth + 1;
        parents = new ArrayList<>();

    }

    public void setDepth_Avg(ConditionOptionCall<AvgAggregationBuilder> opLambda) {
        setDepth_Avg("depth", opLambda);
    }

    public void setDepth_Avg(String name, ConditionOptionCall<AvgAggregationBuilder> opLambda) {
        AvgAggregationBuilder builder = regAvgA(name, "depth");
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

            crawlerContext.setNumOfThread(numOfThread);

            // depth
            final int depth = webConfig.getDepth() != null ? webConfig.getDepth() : -1;
            crawlerContext.setMaxDepth(depth);

            // max count
            final long maxCount = webConfig.getMaxAccessCount() != null ? webConfig.getMaxAccessCount() : maxAccessCount;

                                    <label for="depth" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.depth"/></label>
                                    <div class="form-inline col-sm-9">
                                        <la:errors property="depth"/>
                                        <input type="number" name="depth" id="depth"

                                    </tr>
                                    <tr>
                                        <th><la:message key="labels.depth"/></th>
                                        <td>${f:h(depth)}<la:hidden property="depth"/></td>
                                    </tr>
                                    <tr>

    }

    public void setDepth_Avg(ConditionOptionCall<AvgAggregationBuilder> opLambda) {
        setDepth_Avg("depth", opLambda);
    }

    public void setDepth_Avg(String name, ConditionOptionCall<AvgAggregationBuilder> opLambda) {
        AvgAggregationBuilder builder = regAvgA(name, "depth");
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

                                    </tr>
                                    <tr>
                                        <th><la:message key="labels.depth"/></th>
                                        <td>${f:h(depth)}<la:hidden property="depth"/></td>
                                    </tr>
                                    <tr>