Class ParquetColumn

This attribute defines the mapping between a property name and the name of a column in a parquet file. When using the ParquetDestination, the WriteOrder defines the order of the columns in the file.

Inheritance

object

System.Attribute

ParquetColumn

Inherited Members

System.Attribute.Equals(object)

System.Attribute.GetCustomAttribute(System.Reflection.Assembly, System.Type)

System.Attribute.GetCustomAttribute(System.Reflection.Assembly, System.Type, bool)

System.Attribute.GetCustomAttribute(System.Reflection.MemberInfo, System.Type)

System.Attribute.GetCustomAttribute(System.Reflection.MemberInfo, System.Type, bool)

System.Attribute.GetCustomAttribute(System.Reflection.Module, System.Type)

System.Attribute.GetCustomAttribute(System.Reflection.Module, System.Type, bool)

System.Attribute.GetCustomAttribute(System.Reflection.ParameterInfo, System.Type)

System.Attribute.GetCustomAttribute(System.Reflection.ParameterInfo, System.Type, bool)

System.Attribute.GetCustomAttributes(System.Reflection.Assembly)

System.Attribute.GetCustomAttributes(System.Reflection.Assembly, bool)

System.Attribute.GetCustomAttributes(System.Reflection.Assembly, System.Type)

System.Attribute.GetCustomAttributes(System.Reflection.Assembly, System.Type, bool)

System.Attribute.GetCustomAttributes(System.Reflection.MemberInfo)

System.Attribute.GetCustomAttributes(System.Reflection.MemberInfo, bool)

System.Attribute.GetCustomAttributes(System.Reflection.MemberInfo, System.Type)

System.Attribute.GetCustomAttributes(System.Reflection.MemberInfo, System.Type, bool)

System.Attribute.GetCustomAttributes(System.Reflection.Module)

System.Attribute.GetCustomAttributes(System.Reflection.Module, bool)

System.Attribute.GetCustomAttributes(System.Reflection.Module, System.Type)

System.Attribute.GetCustomAttributes(System.Reflection.Module, System.Type, bool)

System.Attribute.GetCustomAttributes(System.Reflection.ParameterInfo)

System.Attribute.GetCustomAttributes(System.Reflection.ParameterInfo, bool)

System.Attribute.GetCustomAttributes(System.Reflection.ParameterInfo, System.Type)

System.Attribute.GetCustomAttributes(System.Reflection.ParameterInfo, System.Type, bool)

System.Attribute.GetHashCode()

System.Attribute.IsDefaultAttribute()

System.Attribute.IsDefined(System.Reflection.Assembly, System.Type)

System.Attribute.IsDefined(System.Reflection.Assembly, System.Type, bool)

System.Attribute.IsDefined(System.Reflection.MemberInfo, System.Type)

System.Attribute.IsDefined(System.Reflection.MemberInfo, System.Type, bool)

System.Attribute.IsDefined(System.Reflection.Module, System.Type)

System.Attribute.IsDefined(System.Reflection.Module, System.Type, bool)

System.Attribute.IsDefined(System.Reflection.ParameterInfo, System.Type)

System.Attribute.IsDefined(System.Reflection.ParameterInfo, System.Type, bool)

System.Attribute.Match(object)

System.Attribute.TypeId

object.Equals(object, object)

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: ETLBox.Parquet

Assembly: ETLBox.Parquet.dll

Syntax

    [AttributeUsage(AttributeTargets.Property)]
public class ParquetColumn : Attribute

Examples

public class MyPoco { [ParquetColumn("NameInParquet", WriteOrder: 1)] public string SomeProperty { get; set; } [ParquetColumn(WriterOrder: 2)] public string AnotherProperty { get; set; } }

Constructors

ParquetColumn()

Declaration

    public ParquetColumn()

Examples

public class MyPoco { [ParquetColumn("NameInParquet", WriteOrder: 1)] public string SomeProperty { get; set; } [ParquetColumn(WriterOrder: 2)] public string AnotherProperty { get; set; } }

ParquetColumn(int)

Declaration

    public ParquetColumn(int writeOrder)

Parameters

Type	Name	Description
int	writeOrder

Examples

public class MyPoco { [ParquetColumn("NameInParquet", WriteOrder: 1)] public string SomeProperty { get; set; } [ParquetColumn(WriterOrder: 2)] public string AnotherProperty { get; set; } }

ParquetColumn(string, int)

Declaration

    public ParquetColumn(string columnName, int writeOrder)

Parameters

Type	Name	Description
string	columnName
int	writeOrder

Examples

public class MyPoco { [ParquetColumn("NameInParquet", WriteOrder: 1)] public string SomeProperty { get; set; } [ParquetColumn(WriterOrder: 2)] public string AnotherProperty { get; set; } }

ParquetColumn(string)

Declaration

    public ParquetColumn(string columnName)

Parameters

Type	Name	Description
string	columnName

Examples

public class MyPoco { [ParquetColumn("NameInParquet", WriteOrder: 1)] public string SomeProperty { get; set; } [ParquetColumn(WriterOrder: 2)] public string AnotherProperty { get; set; } }

Properties

ColumnName

Declaration

    public string ColumnName { get; set; }

Property Value

Type	Description
string

Examples

public class MyPoco { [ParquetColumn("NameInParquet", WriteOrder: 1)] public string SomeProperty { get; set; } [ParquetColumn(WriterOrder: 2)] public string AnotherProperty { get; set; } }

PropertyName

Declaration

    public string PropertyName { get; set; }

Property Value

Type	Description
string

Examples

public class MyPoco { [ParquetColumn("NameInParquet", WriteOrder: 1)] public string SomeProperty { get; set; } [ParquetColumn(WriterOrder: 2)] public string AnotherProperty { get; set; } }

WriteOrder

Declaration

    public int WriteOrder { get; set; }

Property Value

Type	Description
int

Examples

public class MyPoco { [ParquetColumn("NameInParquet", WriteOrder: 1)] public string SomeProperty { get; set; } [ParquetColumn(WriterOrder: 2)] public string AnotherProperty { get; set; } }