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Class DataTransformation

Represents a transformation of data, when data is imported from a Spotfire.Dxp.Data.DataSource it may optionally be transformed by one or more transformations. A transformation takes a Spotfire.Dxp.Data.DataRowReader as input and a Spotfire.Dxp.Data.DataRowReader as output with the transformed rows.

Remark

To use a transformation for transforming data create a Spotfire.Dxp.Data.DataFlowBuilder and add the transformation.

This cannot be inherited from directly, instead inherit from Spotfire.Dxp.Application.Extension.CustomDataTransformation.

Since

2.0

Hierarchy (View Summary)

Spotfire.Object
- DataTransformation

Index

Methods

Cast Equals GetHashCode ToString TryCast Equals

Default capability

Name TypeId Connect

Methods

Cast

Cast<T1, T2>(this: T2, type: TypeRef<T1>): T1
Casts this object to the specified type. Throws error on failure.
Type Parameters
- T1
  The target type of the cast.
- T2
  The type of the object to cast.
Parameters
- this: T2
- type: TypeRef<T1>
  The type to cast to.
Returns T1
Inherited from Object.Cast

Equals

Equals(obj: any): boolean
Determines whether the specified object is equal to the current object.
Parameters
- obj: any
  The object to compare with the current object.
Returns boolean
true if the specified object is equal to the current object; otherwise, false.

Inherited from Object.Equals

GetHashCode

GetHashCode(): number
Serves as the default hash function.

Returns number
A hash code for the current object.

Inherited from Object.GetHashCode

ToString

ToString(): string
Returns a string that represents the current object.

Returns string
A string that represents the current object.

Inherited from Object.ToString

TryCast

TryCast<T1, T2>(this: T2, type: TypeRef<T1>): null | T1
Casts this object to the specified type. Returns null on failure.
Type Parameters
- T1
  The target type of the cast.
- T2
  The type of the object to cast.
Parameters
- this: T2
- type: TypeRef<T1>
  The type to cast to.
Returns null | T1
Inherited from Object.TryCast

`Static`Equals

Equals(objA: any, objB: any): boolean
Determines whether the specified object instances are considered equal.
Parameters
- objA: any
  The first object to compare.
- objB: any
  The second object to compare.
Returns boolean
true if the objects are considered equal; otherwise, false. If both objA and objB are null, the method returns true.

Inherited from Object.Equals

Default capability

Name

get Name(): string
Gets the display name of the transformation.

Returns string
Since
2.0

TypeId

get TypeId(): TypeIdentifier
Gets the type identifier for the data source.

Returns TypeIdentifier
Since
2.0

Connect

Connect(
importContext: ImportContext,
input: DataRowReader,
): DataTransformationConnection
Connects to the input reader. A Spotfire.Dxp.Data.DataRowReader can then be retrieved from the Spotfire.Dxp.Data.DataTransformationConnection.
Parameters
- importContext: ImportContext
  The import context.
- input: DataRowReader
  The input reader.
Returns DataTransformationConnection
The connected transformation.

Since
2.0