/// <summary>
/// Sets the <typeparamref name="T"/> value with the specified key and time-to-live.
/// </summary>
/// <value></value>
public T this[K key, TimeSpan timeToLive]
{
set
{
_innerDictionary[key] = new ExpirableItem <T>(value, timeToLive);
}
}
/// <summary>
/// Sets the <typeparamref name="T"/> value with the specified key an explicit expiration date/time.
/// </summary>
/// <value></value>
public T this[K key, DateTime expires]
{
set
{
_innerDictionary[key] = new ExpirableItem <T>(value, expires);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ExpirableItemDictionary<K, T>"/> class.
/// </summary>
public ExpirableItemDictionary()
{
DefaultTimeToLive = new ExpirableItem <T>().TimeToLive;
_innerDictionary = new Dictionary <K, ExpirableItem <T> >();
var ts = AutoClearExpiredItemsFrequency;
this.Timer = new Timer(e => this.ClearExpiredItems(), null, ts, ts);
}
/// <summary>
/// Gets or sets the <typeparamref name="TValue" /> value with the specified key.
/// </summary>
public TValue this[TKey key]
{
get
{
TValue value;
if (!TryGetValue(key, out value))
{
throw new KeyNotFoundException();
}
return(value);
}
set { innerDictionary[key] = new ExpirableItem <TValue>(value, DefaultTimeToLive); }
}
/// <summary>
/// Gets or sets the <typeparamref name="T"/> value with the specified key.
/// </summary>
/// <value></value>
public T this[K key]
{
get
{
lock (lockObject)
{
if (ContainsKey(key))
{
return(_innerDictionary[key].Value);
}
return(default(T));
}
}
set
{
_innerDictionary[key] = new ExpirableItem <T>(value, DefaultTimeToLive);
}
}
/// <summary>
/// Adds a new expirable item to the collection.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="value">The value.</param>
public void Add(K key, ExpirableItem <T> value)
{
_innerDictionary.Add(key, value);
}
/// <summary>
/// Sets the <typeparamref name="TValue" /> value with the specified key an explicit expiration date/time.
/// </summary>
/// <value></value>
public TValue this[TKey key, DateTime expires]
{
set { innerDictionary[key] = new ExpirableItem <TValue>(value, expires); }
}
/// <summary>
/// Sets the <typeparamref name="TValue" /> value with the specified key and time-to-live.
/// </summary>
/// <value></value>
public TValue this[TKey key, TimeSpan timeToLive]
{
set { innerDictionary[key] = new ExpirableItem <TValue>(value, timeToLive); }
}
/// <summary>
/// Adds a new expirable item to the collection.
/// </summary>
protected void Add(TKey key, ExpirableItem <TValue> value)
{
innerDictionary.Add(key, value);
}