MappingFragment Class

Definition

Namespace:

System.Data.Entity.Core.Mapping

Assembly:

EntityFramework.dll

Represents the metadata for mapping fragment. A set of mapping fragments makes up the Set mappings( EntitySet, AssociationSet or CompositionSet ) Each MappingFragment provides mapping for those properties of a type that map to a single table.

public class MappingFragment : System.Data.Entity.Core.Mapping.StructuralTypeMapping

type MappingFragment = class
    inherit StructuralTypeMapping

Public Class MappingFragment
Inherits StructuralTypeMapping

Inheritance

Object

MappingItem

StructuralTypeMapping

MappingFragment

Examples

For Example if conceptually you could represent the CS MSL file as following --Mapping --EntityContainerMapping ( CNorthwind-->SNorthwind ) --EntitySetMapping --EntityTypeMapping --MappingFragment --EntityKey --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --EntityTypeMapping --MappingFragment --EntityKey --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ComplexPropertyMap --ComplexTypeMapping --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ScalarProperyMap ( CMemberMetadata-->SMemberMetadata ) --DiscriminatorProperyMap ( constant value-->SMemberMetadata ) --ComplexTypeMapping --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ScalarProperyMap ( CMemberMetadata-->SMemberMetadata ) --DiscriminatorProperyMap ( constant value-->SMemberMetadata ) --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --AssociationSetMapping --AssociationTypeMapping --MappingFragment --EndPropertyMap --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ScalarProperyMap ( CMemberMetadata-->SMemberMetadata ) --EndPropertyMap --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) This class represents the metadata for all the mapping fragment elements in the above example. Users can access all the top level constructs of MappingFragment element like EntityKey map, Property Maps, Discriminator property through this mapping fragment class.

Constructors

MappingFragment(EntitySet, TypeMapping, Boolean)

Creates a MappingFragment instance.

Properties

Conditions	Gets a read-only collection of property mapping conditions.
MakeColumnsDistinct	Gets a flag that indicates whether to include 'DISTINCT' when generating queries.
PropertyMappings	Gets a read-only collection of property mappings.
StoreEntitySet	Gets the EntitySet corresponding to the table or view being mapped.
TypeMapping	Gets the TypeMapping that contains this MappingFragment.

Methods

AddCondition(ConditionPropertyMapping)	Adds a property mapping condition.
AddPropertyMapping(PropertyMapping)	Adds a property mapping.
RemoveCondition(ConditionPropertyMapping)	Removes a property mapping condition.
RemovePropertyMapping(PropertyMapping)	Removes a property mapping.