[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]

Add a filter callback according to the filter specification to the top node returninginformation to be used to remove the filter callback.

Namespace: net.esper.filter
Assembly:   NEsper (in NEsper.dll)

Syntax

Visual Basic (Declaration)
Public Function Add ( _
	filterValueSet As FilterValueSet, _
	filterCallback As FilterCallback, _
	topNode As FilterCallbackSetNode _
) As IndexTreePath
C#
public IndexTreePath Add (
	FilterValueSet filterValueSet,
	FilterCallback filterCallback,
	FilterCallbackSetNode topNode
)
Visual C++
public:
IndexTreePath^ Add (
	FilterValueSet^ filterValueSet, 
	FilterCallback^ filterCallback, 
	FilterCallbackSetNode^ topNode
)

Parameters

filterValueSet
net.esper.filter.FilterValueSet
is the filter definition
filterCallback
net.esper.filter.FilterCallback
is the callback to be added
topNode
net.esper.filter.FilterCallbackSetNode
node to be added to any subnode beneath it

Return Value

an encapsulation of information need to allow for safe removal of the filter tree.