Class CollectionUtil

Methods for manipulating (sorting) collections. Sort methods work directly on the supplied lists and don't copy to/from arrays before/after. For medium size collections as used in the Lucene indexer that is much more efficient.

This is a Lucene.NET INTERNAL API, use at your own risk

Inheritance

System.Object

CollectionUtil

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Lucene.Net.Util

Assembly: Lucene.Net.dll

Syntax

public static class CollectionUtil

Methods

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IntroSort<T>(IList<T>)

Sorts the given random access System.Collections.Generic.IList<T> in natural order. This method uses the intro sort algorithm, but falls back to insertion sort for small lists.

Declaration

public static void IntroSort<T>(IList<T> list)

Parameters

Type	Name	Description
System.Collections.Generic.IList<T>	list	This System.Collections.Generic.IList<T>

Type Parameters

Name	Description
T

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IntroSort<T>(IList<T>, IComparer<T>)

Sorts the given System.Collections.Generic.IList<T> using the System.Collections.Generic.IComparer<T>. This method uses the intro sort algorithm, but falls back to insertion sort for small lists.

Declaration

public static void IntroSort<T>(IList<T> list, IComparer<T> comp)

Parameters

Type	Name	Description
System.Collections.Generic.IList<T>	list	This System.Collections.Generic.IList<T>
System.Collections.Generic.IComparer<T>	comp	The System.Collections.Generic.IComparer<T> to use for the sort.

Type Parameters

Name	Description
T

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TimSort<T>(IList<T>)

Sorts the given System.Collections.Generic.IList<T> in natural order. This method uses the Tim sort algorithm, but falls back to binary sort for small lists.

Declaration

public static void TimSort<T>(IList<T> list)

Parameters

Type	Name	Description
System.Collections.Generic.IList<T>	list	This System.Collections.Generic.IList<T>

Type Parameters

Name	Description
T

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TimSort<T>(IList<T>, IComparer<T>)

Sorts the given System.Collections.Generic.IList<T> using the System.Collections.Generic.IComparer<T>. This method uses the Tim sort algorithm, but falls back to binary sort for small lists.

Declaration

public static void TimSort<T>(IList<T> list, IComparer<T> comp)

Parameters

Type	Name	Description
System.Collections.Generic.IList<T>	list	this System.Collections.Generic.IList<T>
System.Collections.Generic.IComparer<T>	comp	The System.Collections.Generic.IComparer<T> to use for the sort.

Type Parameters

Name	Description
T