/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.sdklib.internal.repository;

import com.android.sdklib.repository.SdkRepoConstants;

/**
 * Interface used to decorate a {@link Package} that has a dependency
 * on a minimal platform-tools revision, e.g. which XML has a
 * <code>&lt;min-platform-tools-rev&gt;</code> element.
 * <p/>
 * A package that has this dependency can only be installed if the requested platform-tools
 * revision is present or installed at the same time.
 */
public interface IMinPlatformToolsDependency {

    /**
     * The value of {@link #getMinPlatformToolsRevision()} when the
     * {@link SdkRepoConstants#NODE_MIN_PLATFORM_TOOLS_REV} was not specified in the XML source.
     * Since this is a required attribute in the XML schema, it can only happen when dealing
     * with an invalid repository XML.
     */
    public static final int MIN_PLATFORM_TOOLS_REV_INVALID = 0;

    /**
     * The minimal revision of the tools package required by this package if > 0,
     * or {@link #MIN_PLATFORM_TOOLS_REV_INVALID} if the value was missing.
     * <p/>
     * This attribute is mandatory and should not be normally missing.
     * It can only happen when dealing with an invalid repository XML.
     */
    public abstract int getMinPlatformToolsRevision();

}
