Class EntityDescriptor

Stores mapping entity descriptor.

Inheritance
System.Object
EntityDescriptor
Implements
Namespace: LinqToDB.Mapping
Assembly: linq2db.dll
Syntax
public class EntityDescriptor : object, IEntityChangeDescriptor

Constructors

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EntityDescriptor(MappingSchema, Type)

Creates descriptor instance.

Declaration
public EntityDescriptor(MappingSchema mappingSchema, Type type)
Parameters
Type Name Description
MappingSchema mappingSchema

Mapping schema, associated with descriptor.
Type type

Mapping class type.

Properties

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Aliases

Gets mapping dictionary to map column aliases to target columns or aliases.

Declaration
public Dictionary<string, string?>? Aliases { get; }
Property Value
Type Description
System.Nullable<Dictionary<System.String, System.Nullable<System.String>>>
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Associations

Gets list of association descriptors for current entity.

Declaration
public List<AssociationDescriptor> Associations { get; }
Property Value
Type Description
List<AssociationDescriptor>
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CalculatedMembers

Gets list of calculated column members (properties with IsColumn set to true).

Declaration
public List<MemberAccessor>? CalculatedMembers { get; }
Property Value
Type Description
System.Nullable<List<MemberAccessor>>
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Columns

Gets list of column descriptors for current entity.

Declaration
public List<ColumnDescriptor> Columns { get; }
Property Value
Type Description
List<ColumnDescriptor>
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DynamicColumnsStore

Gets the dynamic columns store descriptor.

Declaration
public ColumnDescriptor DynamicColumnsStore { get; }
Property Value
Type Description
ColumnDescriptor
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HasCalculatedMembers

Returns true, if entity has calculated columns. Also see CalculatedMembers.

Declaration
public bool HasCalculatedMembers { get; }
Property Value
Type Description
System.Boolean
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InheritanceMapping

Gets list of inheritance mapping descriptors for current entity.

Declaration
public List<InheritanceMapping> InheritanceMapping { get; }
Property Value
Type Description
List<InheritanceMapping>
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IsColumnAttributeRequired

Gets or sets column mapping rules for current mapping class or interface. If true, properties and fields should be marked with one of those attributes to be used for mapping:

Declaration
public bool IsColumnAttributeRequired { get; }
Property Value
Type Description
System.Boolean
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Item[String]

Gets column descriptor by member name.

Declaration
public ColumnDescriptor this[string memberName] { get; }
Parameters
Type Name Description
System.String memberName

Member name.
Property Value
Type Description
ColumnDescriptor

Returns column descriptor or null, if descriptor not found.
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Name

Gets name of table or view in database.

Declaration
public SqlObjectName Name { get; }
Property Value
Type Description
LinqToDB.SqlQuery.SqlObjectName
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ObjectType

Gets mapping class type.

Declaration
public Type ObjectType { get; }
Property Value
Type Description
Type
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QueryFilterFunc

Declaration
public Delegate? QueryFilterFunc { get; }
Property Value
Type Description
System.Nullable<Delegate>
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SkipModificationFlags

Gets flags for which operation values are skipped.

Declaration
public SkipModification SkipModificationFlags { get; }
Property Value
Type Description
SkipModification
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TableOptions

Gets or sets table options. See TableOptions enum for support information per provider.

Declaration
public TableOptions TableOptions { get; }
Property Value
Type Description
TableOptions
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TypeAccessor

Gets or sets mapping type accessor.

Declaration
public TypeAccessor TypeAccessor { get; set; }
Property Value
Type Description
TypeAccessor

Methods

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FindColumnDescriptor(MemberInfo)

Returns column descriptor based on its MemberInfo

Declaration
public ColumnDescriptor FindColumnDescriptor(MemberInfo memberInfo)
Parameters
Type Name Description
MemberInfo memberInfo
Returns
Type Description
ColumnDescriptor

Explicit Interface Implementations

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IEntityChangeDescriptor.Columns

Declaration
IEnumerable<IColumnChangeDescriptor> IEntityChangeDescriptor.Columns { get; }
Returns
Type Description
IEnumerable<IColumnChangeDescriptor>
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IEntityChangeDescriptor.DatabaseName

Declaration
string? IEntityChangeDescriptor.DatabaseName { get; set; }
Returns
Type Description
System.Nullable<System.String>
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IEntityChangeDescriptor.SchemaName

Declaration
string? IEntityChangeDescriptor.SchemaName { get; set; }
Returns
Type Description
System.Nullable<System.String>
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IEntityChangeDescriptor.ServerName

Declaration
string? IEntityChangeDescriptor.ServerName { get; set; }
Returns
Type Description
System.Nullable<System.String>
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IEntityChangeDescriptor.TableName

Declaration
string IEntityChangeDescriptor.TableName { get; set; }
Returns
Type Description
System.String
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IEntityChangeDescriptor.TableOptions

Declaration
TableOptions IEntityChangeDescriptor.TableOptions { get; set; }
Returns
Type Description
TableOptions

Implements

Extension Methods