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Public Class ScriptMain
Inherits UserComponent
Public Enum FindAction
Minimum
Maximum
End Enum ' FindAction
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Public Overrides Sub Input_ProcessInputRow(ByVal Row As InputBuffer)
Dim current As IComparable = CType(Row.Buffer(m_index), IComparable)
If m_result Is Nothing Then
m_result = current
End If
Select Case Me.Find
Case FindAction.Minimum
If m_result.CompareTo(current) > 0 Then
m_result = current
End If
Case FindAction.Maximum
If m_result.CompareTo(current) < 0 Then
m_result = current
End If
Case Else
Throw New Exception("Unhandled find action.")
End Select
End Sub ' Input_ProcessInputRow
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Public Overrides Sub PreExecute()
Call MyBase.PreExecute()
Dim input As IDTSInput100 = Me.ComponentMetaData.InputCollection(0)
' Find column index.
m_index = Me.HostComponent.BufferManager.FindColumnByLineageID( _
input.Buffer, _
input.InputColumnCollection(Me.Column).LineageID)
End Sub ' PreExecute
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Public Overrides Sub PostExecute()
Call MyBase.PostExecute()
' Store result value in variable.
Dim vars As IDTSVariables100 = Nothing
Call Me.VariableDispenser.LockOneForWrite(Me.ResultVariable, vars)
Try
vars(Me.ResultVariable).Value = m_result
Finally
Call vars.Unlock()
End Try
m_index = -1
End Sub ' PostExecute
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Public Function Validate(ByRef errMessage As String) As Boolean
Dim result As Boolean = True
Try
If String.IsNullOrEmpty(Me.Column) Then
Throw New Exception("Select input column.")
ElseIf String.IsNullOrEmpty(Me.ResultVariable) Then
Throw New Exception("Select result variable.")
Else
Dim managedComponent As CManagedComponentWrapper = Me.ComponentMetaData.Instantiate()
Dim input As IDTSInput100 = Me.ComponentMetaData.InputCollection(0)
Dim virtInput As IDTSVirtualInput100 = input.GetVirtualInput()
Call input.InputColumnCollection.RemoveAll()
' Setup selected column.
Dim valueColumn As IDTSInputColumn100 = managedComponent.SetUsageType( _
input.ID, _
virtInput, _
virtInput.VirtualInputColumnCollection(Me.Column).LineageID, _
DTSUsageType.UT_READONLY)
End If
Catch ex As Exception
result = False
errMessage = ex.Message
End Try
Validate = result
End Function 'Validate
#Region "Properties"
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Public Property Column() As String
Get
Column = m_column
End Get
Set(ByVal value As String)
m_column = value
End Set
End Property ' Column
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Public Property Find() As FindAction
Get
Find = m_find
End Get
Set(ByVal value As FindAction)
m_find = value
End Set
End Property ' Find
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Public Property ResultVariable() As String
Get
ResultVariable = m_resultVar
End Get
Set(ByVal value As String)
m_resultVar = value
End Set
End Property ' ResultVariable
#End Region ' Properties
#Region "Attributes"
Private m_column As String
Private m_find As FindAction
Private m_resultVar As String
Private m_index As Integer
Private m_result As IComparable
#End Region ' Attributes
End Class ' ScriptMain
]]> _
Public Class InputBuffer
Inherits ScriptBufferPlus
Public Sub New(ByVal Component As ScriptComponent, ByVal ObjectID As Integer, ByVal IsInput As Boolean, ByVal Buffer As PipelineBuffer, ByVal OutputMap As OutputNameMap)
MyBase.New(Component, ObjectID, IsInput, Buffer, OutputMap)
End Sub
Public Overrides ReadOnly Property StaticInputColumns() As String()
Get
Return New String() {}
End Get
End Property
Public Overrides ReadOnly Property StaticOutputColumns() As String()
Get
Return New String() {}
End Get
End Property
Public Overloads Function NextRow() As Boolean
NextRow = MyBase.NextRow()
End Function
Public Overloads Function EndOfRowset() As Boolean
EndOfRowset = MyBase.EndOfRowset
End Function
End Class
]]>{30D016F9-3734-4E33-A861-5E7D899E18F3};{F184B08F-C81C-45F6-A57F-5ABD9991F28F}DebugAnyCPU8.0.307032.0{629C591A-F206-4A1E-9B5F-62C703C8DE9B}LibraryMy ProjectScriptComponent_cabd57eb33fb4046b52050c83394134fScriptComponent_cabd57eb33fb4046b52050c83394134fv4.0512truefullfalse.\bin\Debug\falsetruetrueprompt4falsetrue.\bin\Release\falsefalsetrueprompt4FalseC:\Program Files (x86)\Microsoft SQL Server\110\SDK\Assemblies\CozyRoc.SSISPlus.2012.dllSSIS_SC110BinaryOnOn]]> _
Public Class UserComponent
Inherits ScriptComponentPlus
Public Connections As New Connections(Me)
Public Variables As New Variables(Me)
Public Overrides Sub ProcessInput(ByVal InputID As Integer, ByVal InputName As String, ByVal Buffer As PipelineBuffer, ByVal OutputMap As OutputNameMap)
If InputID = MyBase.ComponentMetaData.InputCollection("Input").ID Then
Input_ProcessInput(New InputBuffer(Me, InputID, True, Buffer, OutputMap))
End If
End Sub
Public Overridable Sub Input_ProcessInput(ByVal Buffer As InputBuffer)
While Buffer.NextRow()
Input_ProcessInputRow(Buffer)
End While
End Sub
Public Overridable Sub Input_ProcessInputRow(ByVal Row As InputBuffer)
End Sub
End Class
Public Class Connections
Dim ParentComponent As ScriptComponent
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Public Sub New(ByVal Component As ScriptComponent)
ParentComponent = Component
End Sub
End Class
Public Class Variables
Dim ParentComponent As ScriptComponent
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Public Sub New(ByVal Component As ScriptComponent)
ParentComponent = Component
End Sub
End Class
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