IndexAnnotation Class
Definition
Important
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Instances of this class are used as custom annotations for representing database indexes in an Entity Framework model.
public class IndexAnnotation : System.Data.Entity.Infrastructure.Annotations.IMergeableAnnotationtype IndexAnnotation = class
interface IMergeableAnnotationPublic Class IndexAnnotation
Implements IMergeableAnnotation- Inheritance
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IndexAnnotation
- Implements
Remarks
An index annotation is added to a Code First model when an IndexAttribute is placed on a mapped property of that model. This is used by Entity Framework Migrations to create indexes on mapped database columns. Note that multiple index attributes on a property will be merged into a single annotation for the column. Similarly, index attributes on multiple properties that map to the same column will be merged into a single annotation for the column. This means that one index annotation can represent multiple indexes. Within an annotation there can be only one index with any given name.
Constructors
| IndexAnnotation(IEnumerable<IndexAttribute>) |
Creates a new annotation for the given collection of indexes. |
| IndexAnnotation(IndexAttribute) |
Creates a new annotation for the given index. |
Fields
| AnnotationName |
The name used when this annotation is stored in Entity Framework metadata or serialized into an SSDL/EDMX file. |
Properties
| Indexes |
Gets the indexes represented by this annotation. |
Methods
| IsCompatibleWith(Object) |
Returns true if this annotation does not conflict with the given annotation such that the two can be combined together using the MergeWith(Object) method. |
| MergeWith(Object) |
Merges this annotation with the given annotation and returns a new annotation containing the merged indexes. |
| ToString() | Returns a string that represents the current object. |
Applies to
Entity Framework