Class StringHelper

Methods for manipulating strings.

Note

This API is for internal purposes only and might change in incompatible ways in the next release.

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 static class StringHelper

Properties

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GOOD_FAST_HASH_SEED

Declaration

[Obsolete("Use GoodFastHashSeed instead. This field will be removed in 4.8.0 release candidate.")]
public static int GOOD_FAST_HASH_SEED { get; }

Property Value

Type	Description
System.Int32

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GoodFastHashSeed

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

Declaration

public static int GoodFastHashSeed { get; }

Property Value

Type	Description
System.Int32

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VersionComparer

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

Note

This API is for internal purposes only and might change in incompatible ways in the next release.

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(this 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(this 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(this 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`.