/// <summary>
/// Initializes a new instance of the <see cref="CachedPropertyValueFactory"/> class.
/// </summary>
/// <param name="propertyValueFactory">Real factory.</param>
/// <param name="propertyComparer">Property comparer.</param>
/// <param name="maxItemCount">Max item count in cache.</param>
public CachedPropertyValueFactory(
IPropertyValueFactory propertyValueFactory,
IEqualityComparer <IProperty> propertyComparer,
int?maxItemCount = null)
{
propertyValueFactory.AssertArgumentNotNull(nameof(propertyValueFactory));
propertyComparer.AssertArgumentNotNull(nameof(propertyComparer));
_propertyValueFactory = propertyValueFactory;
var propertyValueKeyComparer = new PropertyValueKeyComparer(propertyComparer);
if (maxItemCount == null)
{
// unlimited cache
_propertyValuesCache = new ConcurrentDictionaryAdapter <PropertyValueInfo, IPropertyValue>(new ConcurrentDictionary <PropertyValueInfo, IPropertyValue>(propertyValueKeyComparer));
}
else
{
// limited cache
_propertyValuesCache = new Core.TwoLayerCache <PropertyValueInfo, IPropertyValue>(maxItemCount.Value, propertyValueKeyComparer);
}
}
public PropertyValueKeyComparer(IEqualityComparer <IProperty> propertyComparer)
{
propertyComparer.AssertArgumentNotNull(nameof(propertyComparer));
_propertyComparer = propertyComparer;
}
