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Model for the Builder library.
There is a newer version: 2.3.0
/*
 * Copyright (C) 2013 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.builder.model;

import com.android.annotations.NonNull;

import java.util.Collection;
import java.util.List;

/**
 * A build Variant.
 *
 * This is the combination of a Build Type and 0+ Product Flavors (exactly one for each existing
 * Flavor Dimension).
 *
 * Build Types and Flavors both contribute source folders, so this Variant is the direct
 * representation of a set of source folders (and configuration parameters) used to build something.
 *
 * However the output of a Variant is not a single item.
 *
 * First there can be several artifacts.
 * - Main Artifact: this is the main Android output(s). The app or the library being generated.
 * - Extra Android Artifacts: these are ancillary artifacts, most likely test app(s).
 * - Extra Java artifacts: these are pure-Java ancillary artifacts (junit support for instance).
 */
public interface Variant {

    /**
     * Returns the name of the variant. It is made up of the build type and flavors (if applicable)
     *
     * @return the name of the variant.
     */
    @NonNull
    String getName();

    /**
     * Returns a display name for the variant. It is made up of the build type and flavors
     * (if applicable)
     *
     * @return the name.
     */
    @NonNull
    String getDisplayName();

    /**
     * Returns the main artifact for this variant.
     *
     * @return the artifact.
     */
    @NonNull
    AndroidArtifact getMainArtifact();

    @NonNull
    Collection getExtraAndroidArtifacts();

    @NonNull
    Collection getExtraJavaArtifacts();

    /**
     * Returns the build type. All variants have a build type, so this is never null.
     *
     * @return the name of the build type.
     */
    @NonNull
    String getBuildType();

    /**
     * Returns the flavors for this variants. This can be empty if no flavors are configured.
     *
     * @return a list of flavors which can be empty.
     */
    @NonNull
    List getProductFlavors();

    /**
     * The result of the merge of all the flavors and of the main default config. If no flavors
     * are defined then this is the same as the default config.
     *
     * This is directly a ProductFlavor instance of a ProductFlavorContainer since this a composite
     * of existing ProductFlavors.
     *
     * @return the merged flavors.
     *
     * @see AndroidProject#getDefaultConfig()
     */
    @NonNull
    ProductFlavor getMergedFlavor();
}