Table of Contents

Class AccessSqlExpressionConvertVisitor

Namespace
LinqToDB.Internal.DataProvider.Access
Assembly
linq2db.dll
public class AccessSqlExpressionConvertVisitor : SqlExpressionConvertVisitor
Inheritance
AccessSqlExpressionConvertVisitor
Inherited Members
Extension Methods

Constructors

AccessSqlExpressionConvertVisitor(bool) 

public AccessSqlExpressionConvertVisitor(bool allowModify)

Parameters

allowModify bool

Properties

LikeCharactersToEscape

Characters with special meaning in LIKE predicate (defined by LikeCharactersToEscape) that should be escaped to be used as matched character. Default: ["%", "_", "?", "*", "#", "[", "]"].

public override string[] LikeCharactersToEscape { get; }

Property Value

string[]

LikeIsEscapeSupported

Should be true for provider with LIKE ... ESCAPE modifier support. Default: true.

public override bool LikeIsEscapeSupported { get; }

Property Value

bool

SupportsNullIf 

protected override bool SupportsNullIf { get; }

Property Value

bool

Methods

ConvertCoalesce(SqlCoalesceExpression) 

public override ISqlExpression ConvertCoalesce(SqlCoalesceExpression element)

Parameters

element SqlCoalesceExpression

Returns

ISqlExpression

ConvertConversion(SqlCastExpression)

Implements SqlCastExpression conversion.

protected override ISqlExpression ConvertConversion(SqlCastExpression cast)

Parameters

cast SqlCastExpression

Returns

ISqlExpression

ConvertLikePredicate(Like) 

public override ISqlPredicate ConvertLikePredicate(SqlPredicate.Like predicate)

Parameters

predicate SqlPredicate.Like

Returns

ISqlPredicate

ConvertSearchStringPredicate(SearchString) 

public override ISqlPredicate ConvertSearchStringPredicate(SqlPredicate.SearchString predicate)

Parameters

predicate SqlPredicate.SearchString

Returns

ISqlPredicate

ConvertSqlFunction(SqlFunction) 

public override ISqlExpression ConvertSqlFunction(SqlFunction func)

Parameters

func SqlFunction

Returns

ISqlExpression

EscapeLikeCharacters(ISqlExpression, ref ISqlExpression?) 

public override ISqlExpression EscapeLikeCharacters(ISqlExpression expression, ref ISqlExpression? escape)

Parameters

expression ISqlExpression
escape ISqlExpression

Returns

ISqlExpression

EscapeLikePattern(string)

Implements LIKE pattern escaping logic for provider without ESCAPE clause support (LikeIsEscapeSupported is false). Default logic prefix characters from LikeCharactersToEscape with LikeEscapeCharacter.

protected override string EscapeLikePattern(string str)

Parameters

str string

Raw pattern value.

Returns

string

Escaped pattern value.