Class MappingSourceAttribute
Instructs the default mapper to use a different record field name (or dot-separated path) when mapping a value to the marked property or parameter. This attribute does not affect custom-defined mappers.
[AttributeUsage(AttributeTargets.Property|AttributeTargets.Parameter)]
public class MappingSourceAttribute : MappingBindingsAttribute, IMappingBindingMutator- Inheritance
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MappingSourceAttribute
- Implements
- Inherited Members
- Extension Methods
Remarks
Use this attribute when the record field name does not match the C# property or parameter name, or when global identifier translation via TranslateIdentifiers(bool) is active but you need to bypass it for a specific member.
A simple path is a single record key: [MappingSource("first_name")].
A dot-separated path lets you read a property from a nested entity or dictionary column:
[MappingSource("person.name")] reads the name property from the record field person,
where person is a node, relationship, or dictionary. All segments are matched case-sensitively.
When a EntityMappingSource other than Property is required (for example to read a node's labels), use the two-argument constructor.
Constructors
- MappingSourceAttribute(string)
Instructs the default mapper to use the specified field name or dot-separated path when mapping to the marked property or parameter.
- MappingSourceAttribute(string, EntityMappingSource)
Instructs the default mapper to use the specified record field and mapping source when mapping to the marked property or parameter.
Methods
- Mutate(MappingBinding)
Called by the default mapper to allow this mutator to update the mapping configuration for a property or parameter.