Class StringHelper

Methods for manipulating strings.

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

Inheritance

System.Object

StringHelper

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 abstract class StringHelper

Fields

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GOOD_FAST_HASH_SEED

Pass this as the seed to Murmurhash3_x86_32(Byte[], Int32, Int32, Int32).

Declaration

public static readonly int GOOD_FAST_HASH_SEED

Field Value

Type	Description
System.Int32

Properties

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VersionComparer

Returns a IComparer{string} over versioned strings such as X.YY.Z

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

Declaration

public static IComparer<string> VersionComparer { get; }

Property Value

Type	Description
System.Collections.Generic.IComparer<System.String>

Methods

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BytesDifference(BytesRef, BytesRef)

Compares two BytesRef, element by element, and returns the number of elements common to both arrays.

Declaration

public static int BytesDifference(BytesRef left, BytesRef right)

Parameters

Type	Name	Description
BytesRef	left	The first BytesRef to compare.
BytesRef	right	The second BytesRef to compare.

Returns

Type	Description
System.Int32	The number of common elements.

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EndsWith(BytesRef, BytesRef)

Returns true if the ref ends with the given suffix. Otherwise false.

Declaration

public static bool EndsWith(BytesRef ref, BytesRef suffix)

Parameters

Type	Name	Description
BytesRef	ref	The BytesRef to test.
BytesRef	suffix	The expected suffix

Returns

Type	Description
System.Boolean	Returns `true` if the `ref` ends with the given `suffix`. Otherwise `false`.

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Equals(String, String)

Declaration

public static bool Equals(string s1, string s2)

Parameters

Type	Name	Description
System.String	s1
System.String	s2

Returns

Type	Description
System.Boolean

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Murmurhash3_x86_32(BytesRef, Int32)

Returns the MurmurHash3_x86_32 hash. Original source/tests at https://github.com/yonik/java_util/.

Declaration

public static int Murmurhash3_x86_32(BytesRef bytes, int seed)

Parameters

Type	Name	Description
BytesRef	bytes
System.Int32	seed

Returns

Type	Description
System.Int32

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Murmurhash3_x86_32(Byte[], Int32, Int32, Int32)

Returns the MurmurHash3_x86_32 hash. Original source/tests at https://github.com/yonik/java_util/.

Declaration

public static int Murmurhash3_x86_32(byte[] data, int offset, int len, int seed)

Parameters

Type	Name	Description
System.Byte[]	data
System.Int32	offset
System.Int32	len
System.Int32	seed

Returns

Type	Description
System.Int32

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StartsWith(BytesRef, BytesRef)

Returns true if the ref starts with the given prefix. Otherwise false.

Declaration

public static bool StartsWith(BytesRef ref, BytesRef prefix)

Parameters

Type	Name	Description
BytesRef	ref	The BytesRef to test.
BytesRef	prefix	The expected prefix

Returns

Type	Description
System.Boolean	Returns `true` if the `ref` starts with the given `prefix`. Otherwise `false`.