Class QuerySqlFieldAttribute

Marks field or property for SQL queries.

Using this attribute is an alternative to Fields in CacheConfiguration.

Inheritance

System.Object

QuerySqlFieldAttribute

Namespace: Apache.Ignite.Core.Cache.Configuration

Assembly: Apache.Ignite.Core.dll

Syntax

public sealed class QuerySqlFieldAttribute : Attribute

Constructors

QuerySqlFieldAttribute()

Initializes a new instance of the QuerySqlFieldAttribute class.

Declaration

public QuerySqlFieldAttribute()

Properties

DefaultValue

Gets or sets the default value for the field (has effect when inserting with DML).

Declaration

public object DefaultValue { get; set; }

Property Value

Type	Description
System.Object

IndexGroups

Gets or sets the collection of index groups this field belongs to. Groups are used for compound indexes, whenever index should be created on more than one field. All fields within the same group will belong to the same index.

Declaration

public string[] IndexGroups { get; set; }

Property Value

Type	Description
System.String[]

IndexInlineSize

Gets or sets the index inline size, see InlineSize.

Declaration

public int IndexInlineSize { get; set; }

Property Value

Type	Description
System.Int32

IsDescending

Gets or sets a value indicating whether index for this field should be descending. Ignored when IsIndexed is false.

Declaration

public bool IsDescending { get; set; }

Property Value

Type	Description
System.Boolean

IsIndexed

Gets or sets a value indicating whether corresponding field should be indexed. Just like with databases, field indexing may require additional overhead during updates, but makes select operations faster.

Declaration

public bool IsIndexed { get; set; }

Property Value

Type	Description
System.Boolean

Name

Gets or sets the sql field name. If not provided, property or field name will be used.

Declaration

public string Name { get; set; }

Property Value

Type	Description
System.String

NotNull

Gets or sets a value indicating whether null values are allowed for this field.

Declaration

public bool NotNull { get; set; }

Property Value

Type	Description
System.Boolean

Precision

Gets or sets the precision for the field.

Declaration

public int Precision { get; set; }

Property Value

Type	Description
System.Int32

Scale

Gets or sets the scale for the field.

Declaration

public int Scale { get; set; }

Property Value

Type	Description
System.Int32