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

Returns an indication whether the filter callback exists in this node.

NOTE: the client to this method must use the read-write lock of this object to lock, if required by the clientcode.

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

Syntax

Visual Basic (Declaration)
Public Function Contains ( _
	filterCallback As FilterCallback _
) As Boolean
C#
public bool Contains (
	FilterCallback filterCallback
)
Visual C++
public:
bool Contains (
	FilterCallback^ filterCallback
)

Parameters

filterCallback
net.esper.filter.FilterCallback
is the filter callback to check for

Return Value

true if callback found, false if not