FileBackedDictionaryTKey, TValue(String) Constructor

Creates a new instance of the FileBackedDictionaryTKey, TValue class.

Namespace: GSF.Collections
Assembly: GSF.Core (in GSF.Core.dll) Version: 2.4.258-beta+f8b6aa3dbfe0b4cc2b0b0760dd5d2a3dd4f59d09

Syntax

C++

JavaScript

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public FileBackedDictionary(
	string filePath
)

Public Sub New ( 
	filePath As String
)

public:
FileBackedDictionary(
	String^ filePath
)

new : 
        filePath : string -> FileBackedDictionary

GSF.Collections.FileBackedDictionary = function(filePath);

View Source

Parameters

filePath String: The path to the file used to store the lookup table.

Exceptions

Exception	Condition
ArgumentException	filePath is a zero-length string, contains only white space, or contains one or more invalid characters as defined by GetInvalidPathChars.
ArgumentNullException	filePath is null.
InvalidOperationException	Either TKey or TValue cannot be serialized.

Remarks

This constructor uses the default equality comparer for file backed lookup tables, which is not the same as the default equality comparer for TKey objects. This is because the default implementation of GetHashCode does not provide guarantees about consistency across platforms, or even implementations of the CLR. Instead, the default equality comparer uses a byte-for-byte comparison to determine equality between keys and a CRC-32 for its hash code implementation. This means the performance of the hashing function is dependent on the performance of the serialization function.

Reference

FileBackedDictionaryTKey, TValue Class

FileBackedDictionaryTKey, TValue Overload

GSF.Collections Namespace