TrafficFetcher Class

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The TrafficFetcher class is used to retrieve an up-to-date Traffic object based on traffic information from the Traffic's sources.

Inheritance Hierarchy

SystemObject
Telogis.GeoBase.TrafficTrafficFetcher

Namespace: Telogis.GeoBase.Traffic
Assembly: geobase.net (in geobase.net.dll) Version: 4.99.0.0

Syntax

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public class TrafficFetcher

Public Class TrafficFetcher

The TrafficFetcher type exposes the following members.

Constructors

	Name	Description
	TrafficFetcher	Create a new TrafficFetcher

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Methods

	Name	Description
	AddSource(IGenericTrafficSource)	Add a new ITrafficSource to the TrafficFetcher's traffic source list.
	AddSource(IGenericTrafficSource, TimeSpan)	Add a new ITrafficSource to the TrafficFetcher's traffic source list.
	AddSource(String, Type, TimeSpan, HandleDataDelegate)	Add a new traffic source to the TrafficFetcher's traffic source list.
	AddSource(String, Type, TimeSpan, HandleDataDelegate, ICredentials)	Add a new traffic source to the TrafficFetcher's traffic source list.
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	GetExpiry	Get the date/time that the traffic data is still valid.
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetLatestTraffic	Synchronously, get the latest traffic data update from the list of ITrafficSources.
	GetLatestTraffic(DateTime)	Obsolete.
	GetLatestTraffic(TimeSpan)	Get the latest traffic data update from the list of ITrafficSource.
	GetLatestTraffic(DateTime, TimeSpan)	Obsolete.
	GetLatestTrafficAsync	Asynchronously, get the latest traffic data update from the list of ITrafficSources, based on the given date/time.
	GetLatestTrafficAsync(DateTime)	Obsolete.
	GetSourceByURL	Creates an ITrafficSource from the given URL.
	GetSourcesByType	Creates an ITrafficSource from the given type.
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	InsertSource	Insert an ITrafficSource to the TrafficFetcher's traffic source list at the given position.
	RemoveSourcesByType	Remove sources of the given type from ITrafficSource to the TrafficFetcher's source list.
	RemoveSourcesByUrl	Remove sources with given URL from ITrafficSource to the TrafficFetcher's source list.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Events

	Name	Description
	TrafficUpdated	This event handler is called when an update is received from an ITrafficSource. It might not be called on the thread that called GetLatestTraffic, so event handler implementations need to be careful not to use synchronous calls that might deadlock. For example, if GetLatestTraffic was called from a UI thread then the event handler must use BeginInvoke to update UI elements.

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Remarks

The TrafficFetcher class is used to retrieve an up-to-date Traffic object based on traffic information from the Traffic's sources. The TrafficFetcher does not automate the process of obtaining an updated Traffic, but instead, provides the GetLatestTraffic(DateTime) method, which can be called synchronously, or asynchronously.

For synchronous mode, set blocking to true. In this mode, the Traffic object will not be returned until all the ITrafficSources have been updated, or the timeout time has elapsed.

For asynchronous mode, set blocking to false, and wait until the TrafficUpdated event is called, signalling that the ITrafficSource data has been updated.

Reference

Telogis.GeoBase.Traffic Namespace