public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
if (this.GetType() != obj.GetType())
{
return(false);
}
// safe because of the GetType check
SerializableKeyValuePair <TKey, TValue> pair = (SerializableKeyValuePair <TKey, TValue>)obj;
// use this pattern to compare reference members
if (!Object.Equals(Key, pair.Key))
{
return(false);
}
// use this pattern to compare value members
if (!Value.Equals(pair.Value))
{
return(false);
}
return(true);
}
public int Compare(SerializableKeyValuePair <TKey, TValue> x, SerializableKeyValuePair <TKey, TValue> y)
{
int val1 = x.Key.CompareTo(y.Key);
int val2 = x.Value.CompareTo(y.Value);
return(val1.CompareTo(val2));
}
/// <summary>
/// The number of times a feature has appeared in a category
/// </summary>
/// <param name="feature">Feature</param>
/// <param name="category">Category</param>
/// <returns>Count of specified feature in specified category</returns>
protected int FeaturesCount(string feature, string category)
{
SerializableKeyValuePair <string, string> pair = new SerializableKeyValuePair <string, string>(feature, category);
if (FeatureCategoryCombinations.ContainsKey(pair))
{
return(FeatureCategoryCombinations[pair]);
}
return(0);
}
/// <summary>
/// Increase the count of a feature/category pair
/// </summary>
/// <param name="feature">Pair: feature and its frequence</param>
/// <param name="category">Category</param>
protected void IncreaseFeatures(SerializableKeyValuePair <string, int> feature, string category)
{
SerializableKeyValuePair <string, string> pair = new SerializableKeyValuePair <string, string>(feature.Key, category);
if (!FeatureCategoryCombinations.ContainsKey(pair))
{
FeatureCategoryCombinations.Add(pair, feature.Value);
}
else
{
FeatureCategoryCombinations[pair] += feature.Value;
}
}
public bool DeleteFeatureCategoryCombination(string feature, string category)
{
SerializableKeyValuePair <string, string> pair =
new SerializableKeyValuePair <string, string>(feature, category);
if (FeatureCategoryCombinations.ContainsKey(pair))
{
int count = FeatureCategoryCombinations[pair];
FeatureCategoryCombinations.Remove(pair);
if (ItemsCountInCategory[category] >= count)
{
ItemsCountInCategory[category] -= count;
}
else
{
ItemsCountInCategory.Remove(category);
Thresholds.Remove(category);
}
return(true);
}
return(false);
}
