| ColumnAttribute Class |
Used on a POCO property of field. Can be used to override the column name in the database that property or field maps to.
When the ExplicitColumns is set, this attribute also indicates that a property or field should be
mapped.
Inheritance HierarchySystemObject
SystemAttribute
Cassandra.Mapping.AttributesColumnAttribute
SystemAttribute
Cassandra.Mapping.AttributesColumnAttribute
Namespace: Cassandra.Mapping.Attributes
Assembly: Cassandra (in Cassandra.dll) Version: 3.2.0
SyntaxC#
[AttributeUsageAttribute(AttributeTargets.Property|AttributeTargets.Field)] public class ColumnAttribute : Attribute
The ColumnAttribute type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | ColumnAttribute |
Used with the ExplicitColumns, indicates this property should be mapped and that the column name
is the same as the property or field name.
|
| ColumnAttribute(String) |
Specifies the name of the column in the database to use for this property/field. If the ExplicitColumns
is used on the POCO, also tells the mapper that this column should be included when mapping.
|
Methods| Name | Description | |
|---|---|---|
| Equals | Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.) |
| GetHashCode | Returns the hash code for this instance. (Inherited from Attribute.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| IsDefaultAttribute | When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.) |
| Match | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Properties| Name | Description | |
|---|---|---|
 | Name |
The column name in the database this property or field maps to.
|
| Type |
Used to override the Type of the column in the database for INSERTs/UPDATEs. The data in the property/field this attribute is
applied to will be converted to this Type for INSERTs/UPDATEs. If null, the same Type of the property/field will be used
instead. (NOTE: This does NOT affect the Type when fetching/SELECTing data from the database.)
|
| TypeId | When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.) |
See Also