cayenne-server/src/main/java/org/apache/cayenne/configuration/ConfigurationTree.java

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 *  to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne.configuration;

import java.util.Collection;
import java.util.Collections;

import org.apache.cayenne.validation.ValidationFailure;

/**
 * A tree of configuration nodes that contains extra information about the nodes, such
 * as load errors.
 * 
 * @since 3.1
 */
public class ConfigurationTree<T extends ConfigurationNode> {

    protected T rootNode;
    protected Collection<ValidationFailure> loadFailures;

    public ConfigurationTree(T rootNode) {
        this.rootNode = rootNode;
    }

    public ConfigurationTree(T rootNode, Collection<ValidationFailure> loadFailures) {
        this.rootNode = rootNode;
        this.loadFailures = loadFailures;
    }

    public T getRootNode() {
        return rootNode;
    }

    public Collection<ValidationFailure> getLoadFailures() {
        return loadFailures != null ? loadFailures : Collections.EMPTY_LIST;
    }
}