ValueChangeEventFilter Class

Oracle® Fusion Middleware .NET API Reference for Oracle Coherence
14c (14.1.1.0)
F23534-02

IFilter which evaluates the content of a CacheEventArgs values based on the specified value extractor.

Inheritance Hierarchy

SystemObject
Tangosol.Util.FilterExtractorFilter
Tangosol.Util.FilterValueChangeEventFilter

Namespace: Tangosol.Util.Filter
Assembly: Coherence (in Coherence.dll) Version: 14.1.1.14 (14.1.1.14)

Syntax

public class ValueChangeEventFilter : ExtractorFilter

The ValueChangeEventFilter type exposes the following members.

Constructors

	Name	Description
	ValueChangeEventFilter	Default constructor.
	ValueChangeEventFilter(String)	Construct a ValueChangeEventFilter that evaluates CacheEventArgs values based on the specified member name.
	ValueChangeEventFilter(IValueExtractor)	Construct a ValueChangeEventFilter that evaluates CacheEventArgs values based on the specified extractor.

Properties

	Name	Description
	ValueExtractor	Obtain the IValueExtractor used by this filter. (Inherited from ExtractorFilter.)

Methods

	Name	Description
	Equals	Compare the ValueChangeEventFilter with another object to determine equality. (Overrides ObjectEquals(Object).)
	Evaluate	Apply the test to the object. (Overrides ExtractorFilterEvaluate(Object).)
	EvaluateEntry	Apply the test to an ICacheEntry. (Inherited from ExtractorFilter.)
	EvaluateExtracted	Evaluate the specified extracted value. (Overrides ExtractorFilterEvaluateExtracted(Object).)
	Extract	Gets the result of IValueExtractor invocation. (Inherited from ExtractorFilter.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Determine a hash value for the ValueChangeEventFilter object according to the general object.GetHashCode() contract. (Overrides ObjectGetHashCode.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ReadExternal	Restore the contents of a user type instance by reading its state using the specified IPofReader object. (Inherited from ExtractorFilter.)
	ToString	Return a human-readable description for this ValueChangeEventFilter. (Overrides ObjectToString.)
	WriteExternal	Save the contents of a POF user type instance by writing its state using the specified IPofWriter object. (Inherited from ExtractorFilter.)

Fields

	Name	Description
	m_extractor	The ValueExtractor used by this filter. (Inherited from ExtractorFilter.)

Remarks

This filter evaluates to true only for update events that change the value of an extracted attribute.

Example: a filter that evaluates to true if there is an update to an Employee object that changes a value of the LastName property.

new ValueChangeEventFilter("LastName");