Android Open Source - game_guess_lib Inventory

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The source code is released under:

MIT License

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Java Source Code

/* Copyright (c) 2012 Google Inc.
 *//w  w w.  java 2 s. c  om
 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.


import java.util.*;

 * Represents a block of information about in-app items.
 * An Inventory is returned by such methods as {@link}.
public class Inventory {

    Map<String, SkuDetails> mSkuMap = new HashMap<String, SkuDetails>();
    Map<String, Purchase> mPurchaseMap = new HashMap<String, Purchase>();

    Inventory() {

    /** Returns the listing details for an in-app product. */
    public SkuDetails getSkuDetails(String sku) {
        return mSkuMap.get(sku);

    /** Returns purchase information for a given product, or null if there is no purchase. */
    public Purchase getPurchase(String sku) {
        return mPurchaseMap.get(sku);

    /** Returns whether or not there exists a purchase of the given product. */
    public boolean hasPurchase(String sku) {
        return mPurchaseMap.containsKey(sku);

    /** Return whether or not details about the given product are available. */
    public boolean hasDetails(String sku) {
        return mSkuMap.containsKey(sku);

     * Erase a purchase (locally) from the inventory, given its product ID. This just
     * modifies the Inventory object locally and has no effect on the server! This is
     * useful when you have an existing Inventory object which you know to be up to date,
     * and you have just consumed an item successfully, which means that erasing its
     * purchase data from the Inventory you already have is quicker than querying for
     * a new Inventory.
    public void erasePurchase(String sku) {
        if (mPurchaseMap.containsKey(sku)) {

    /** Returns a list of all owned product IDs. */
    List<String> getAllOwnedSkus() {
        return new ArrayList<String>(mPurchaseMap.keySet());

    /** Returns a list of all purchases. */
    List<Purchase> getAllPurchases() {
        return new ArrayList<Purchase>(mPurchaseMap.values());

    void addSkuDetails(SkuDetails d) {
        mSkuMap.put(d.getSku(), d);

    void addPurchase(Purchase p) {
        mPurchaseMap.put(p.getSku(), p);

Java Source Code List