NullableSchemaAttribute Class

Article
05/03/2016

Note

A newer version of HDInsight .NET SDK is available that uses the Azure Resource Manager (ARM) approach. You are encouraged to use the newer ARM-based version of HDInsight .NET SDK going forward. For instructions on how to use the new HDInsight .NET SDK to create a cluster, see Create HDInsight Linux clusters using .NET SDK. For instructions on how to submit jobs using the new .NET SDK and other approaches, see Submit jobs to an HDInsight cluster. The HDInsight SDK reference for the newer version is available at HDInsight .NET SDK Reference.

Represents a class that makes a field or a property nullable. It allows the user to override nullable handling policy of the resolver and map the type of the field or the property to an Avro union of null and the corresponding Avro type.

Namespace: Microsoft.Hadoop.Avro
Assembly: Microsoft.Hadoop.Avro (in Microsoft.Hadoop.Avro.dll)

Inheritance Hierarchy

System.Object
System.Attribute
Microsoft.Hadoop.Avro.NullableSchemaAttribute

Syntax

[AttributeUsageAttribute(AttributeTargets.Property | AttributeTargets.Field, 
    Inherited = false, AllowMultiple = false)]
public sealed class NullableSchemaAttribute : Attribute

[AttributeUsageAttribute(AttributeTargets::Property | AttributeTargets::Field, 
    Inherited = false, AllowMultiple = false)]
public ref class NullableSchemaAttribute sealed : Attribute

[<Sealed>]
[<AttributeUsageAttribute(AttributeTargets.Property | AttributeTargets.Field,
    Inherited = false, AllowMultiple = false)>]
type NullableSchemaAttribute = 
    class
        inherit Attribute
    end

<AttributeUsageAttribute(AttributeTargets.Property Or AttributeTargets.Field,
    Inherited := False, AllowMultiple := False)>
Public NotInheritable Class NullableSchemaAttribute
    Inherits Attribute

Constructors

	Name	Description
	NullableSchemaAttribute()	Initializes a new instance of the NullableSchemaAttribute class.

Properties

	Name	Description
	TypeId	(Inherited from Attribute.)

Methods

	Name	Description
	Equals(Object)	(Inherited from Attribute.)
	GetHashCode()	(Inherited from Attribute.)
	GetType()	(Inherited from Object.)
	IsDefaultAttribute()	(Inherited from Attribute.)
	Match(Object)	(Inherited from Attribute.)
	ToString()	(Inherited from Object.)

Explicit Interface Implementations

	Name	Description
	_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)	(Inherited from Attribute.)
	_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)	(Inherited from Attribute.)
	_Attribute.GetTypeInfoCount(UInt32)	(Inherited from Attribute.)
	_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)	(Inherited from Attribute.)

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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