Android Open Source - Grocery-Mate Memory Cache

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Back to project page Grocery-Mate.

License

The source code is released under:

Apache License

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Java Source Code

/*
* Copyright (C) 2011 iMellon//from  w w  w  . ja  v  a2s .  com
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.imellon.android.grocerymate.cache;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.HashMap;

import com.imellon.android.grocerymate.model.CompanyPoiPriceList;
import com.imellon.android.grocerymate.model.Product;

/**
* @author Christos Papazafeiropoulos, Dimitris Makris
*/

public class MemoryCache {

  private static final MemoryCache instance = new MemoryCache();

  private Map<String, Product> basket;
  private Map<String, CompanyPoiPriceList> product_prices;

  private MemoryCache() {

    basket = Collections.synchronizedMap(new HashMap<String, Product>());
    product_prices = Collections
        .synchronizedMap(new HashMap<String, CompanyPoiPriceList>());
  }

  public static MemoryCache getInstance() {
    return instance;
  }

  public synchronized Product getProduct(String id) {
    if (!basket.containsKey(id))
      return null;
    else
      return basket.get(id);
  }

  public synchronized void putProduct(String id, Product p) {
    basket.put(id, p);
  }

  public synchronized void removeProduct(String id) {
    basket.remove(id);
  }

  public synchronized void clearProducts() {
    basket.clear();
  }

  public synchronized List<Product> getAllProducts() {
    final ArrayList<Product> p = new ArrayList<Product>();

    for (Product x : basket.values()) {
      p.add(x);
    }
    return p;
  }

  public synchronized CompanyPoiPriceList getCompanyPoiPriceList(String id) {
    if (!product_prices.containsKey(id))
      return null;
    else
      return product_prices.get(id);
  }

  public synchronized void putCompanyPoiPriceList(String id,
      CompanyPoiPriceList p) {
    product_prices.put(id, p);
  }

  public synchronized void removeCompanyPoiPriceList(String id) {
    product_prices.remove(id);
  }

  public synchronized void clearCompanyPoiPriceLists() {
    product_prices.clear();
  }
}

Java Source Code List