/// <summary>
/// Executes a function on each item in a Collection but does
/// not accumulate the result
/// </summary>
/// <param name="coll">
/// </param>
/// <param name="func">the Function to execute
/// </param>
public static void Apply(ICollection coll,
CollectionUtil.Function func)
{
for (IEnumerator i = coll.GetEnumerator(); i.MoveNext();)
{
func.Execute(i.Current);
}
}
/// <summary>
/// Executes a function on each item in a {@link Collection}
/// and returns the results in a new {@link List}
/// </summary>
/// <param name="coll">
/// </param>
/// <param name="func">the Function to execute
/// </param>
public static IList Transform(IList coll,
CollectionUtil.Function func)
{
IList result = new ArrayList();
for (IEnumerator i = coll.GetEnumerator(); i.MoveNext();)
{
result.Add(func.Execute(i.Current));
}
return(result);
}
/// <summary>
/// Executes a function on each item in a Collection
/// and collects all the entries for which the result
/// of the function is equal to {@link Boolean}.TRUE.
/// </summary>
/// <param name="coll">
/// </param>
/// <param name="func">the Function to execute
/// </param>
public static IList Select(ICollection collection,
CollectionUtil.Function func)
{
IList result = new ArrayList();
for (IEnumerator i = collection.GetEnumerator(); i.MoveNext();)
{
System.Object item = i.Current;
if (true.Equals(func.Execute(item)))
{
result.Add(item);
}
}
return(result);
}
