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/*
 * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.yangtools.yang.model.api;

import java.util.Collection;
import java.util.Map;
import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.yangtools.yang.model.api.DocumentedNode.WithStatus;
import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Descendant;

/**
 * Contains the methods for getting data and checking properties of the YANG uses substatement.
 */
public interface UsesNode extends WhenConditionAware, WithStatus, CopyableNode {
    /**
     * Returns the {code grouping} which this node acted upon.
     *
     * @return Source grouping
     */
    @NonNull GroupingDefinition getSourceGrouping();

    /**
     * Returns augmentations which were specified in this uses node.
     *
     * @return Set of augment statements defined under this uses node
     */
    @NonNull Collection getAugmentations();

    /**
     * Some of the properties of each node in the grouping can be refined with the "refine" statement.
     *
     * @return Map, where key is schema node identifier of refined node and value is refined node.
     */
    // FIXME: I am not sure I understand why do we need to track these, who are the actual users?
    @NonNull Map getRefines();
}