Class Sql.ExtensionAttribute
- Namespace
- LinqToDB
- Assembly
- linq2db.dll
[AttributeUsage(AttributeTargets.Method|AttributeTargets.Property, AllowMultiple = true)]
public class Sql.ExtensionAttribute : Sql.ExpressionAttribute, _Attribute
- Inheritance
-
objectSql.ExtensionAttribute
- Implements
- Inherited Members
- Extension Methods
Constructors
ExtensionAttribute(string)
public ExtensionAttribute(string expression)
Parameters
expressionstring
ExtensionAttribute(string, string)
public ExtensionAttribute(string configuration, string expression)
Parameters
ExtensionAttribute(string, Type)
public ExtensionAttribute(string configuration, Type builderType)
Parameters
ExtensionAttribute(Type)
public ExtensionAttribute(Type builderType)
Parameters
builderTypeType
Properties
BuilderType
public Type? BuilderType { get; set; }
Property Value
BuilderValue
public object? BuilderValue { get; set; }
Property Value
- object
ChainPrecedence
Defines in which order process extensions. Items will be ordered Descending.
public int ChainPrecedence { get; set; }
Property Value
TokenName
public string? TokenName { get; set; }
Property Value
Methods
BuildFunctionsChain<TContext>(TContext, IDataContext, IExpressionEvaluator, SelectQuery, Expression, ConvertFunc<TContext>, out Expression?)
protected List<Sql.SqlExtensionParam>? BuildFunctionsChain<TContext>(TContext context, IDataContext dataContext, IExpressionEvaluator evaluator, SelectQuery query, Expression expr, Sql.ExpressionAttribute.ConvertFunc<TContext> converter, out Expression? error)
Parameters
contextTContextdataContextIDataContextevaluatorIExpressionEvaluatorquerySelectQueryexprExpressionconverterSql.ExpressionAttribute.ConvertFunc<TContext>errorExpression
Returns
Type Parameters
TContext
BuildSqlExpression(MappingSchema, SelectQuery, SqlExtension, Type, int, SqlFlags, bool?, IsNullableType)
public static Expression BuildSqlExpression(MappingSchema mappingSchema, SelectQuery query, Sql.SqlExtension root, Type systemType, int precedence, SqlFlags flags, bool? canBeNull, Sql.IsNullableType isNullable)
Parameters
mappingSchemaMappingSchemaquerySelectQueryrootSql.SqlExtensionsystemTypeTypeprecedenceintflagsSqlFlagscanBeNullbool?isNullableSql.IsNullableType
Returns
ExcludeExtensionChain(MappingSchema, Expression, out bool)
public static Expression ExcludeExtensionChain(MappingSchema mapping, Expression expr, out bool isQueryable)
Parameters
mappingMappingSchemaexprExpressionisQueryablebool
Returns
GetExpression<TContext>(TContext, IDataContext, IExpressionEvaluator, SelectQuery, Expression, ConvertFunc<TContext>)
public override Expression GetExpression<TContext>(TContext context, IDataContext dataContext, IExpressionEvaluator evaluator, SelectQuery query, Expression expression, Sql.ExpressionAttribute.ConvertFunc<TContext> converter)
Parameters
contextTContextdataContextIDataContextevaluatorIExpressionEvaluatorquerySelectQueryexpressionExpressionconverterSql.ExpressionAttribute.ConvertFunc<TContext>
Returns
Type Parameters
TContext
GetExtensionAttributes(Expression, MappingSchema, bool)
public static Sql.ExtensionAttribute[] GetExtensionAttributes(Expression expression, MappingSchema mapping, bool forFirstConfiguration = true)
Parameters
expressionExpressionmappingMappingSchemaforFirstConfigurationbool
Returns
GetObjectID()
Returns mapping attribute id, based on all attribute options.
public override string GetObjectID()