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Lightstreamer .Net Adapter 1.11.0
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IItemEventListener.Update Method (string, IDictionary, bool)
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Lightstreamer .Net Adapter 1.11.0
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Called by a Data Adapter to send an Item Event to Lightstreamer Kernel when the Item Event is implemented as a IDictionary instance.
The Remote Adapter should ensure that, after an Unsubscribe call for the Item has returned, no more Update calls are issued, until requested by a new subscription for the same Item. This assures that, upon a new subscription for the Item, no trailing events due to the previous subscription can be received by the Remote Server. Note that the method is nonblocking; moreover, it only takes locks to first order mutexes; so, it can safely be called while holding a custom lock.
void Update(string itemName, IDictionary itemEvent, bool isSnapshot);
void Update(string itemName, IDictionary itemEvent, bool isSnapshot);
Function Update(itemName As string, itemEvent As IDictionary, isSnapshot As bool) As void
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Parameters |
Description |
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string itemName |
The name of the Item whose values are carried by the Item Event. |
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IDictionary itemEvent |
A IDictionary instance, in which Field names are associated to Field values. A value can be expressed as either a String or a byte array, the latter case being the most efficient, though restricted to the ISO-8859-1 (ISO-LATIN-1) character set. A Field value can be null or missing if the Field is not to be reported in the event. |
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bool isSnapshot |
True if the Item Event carries the Item Snapshot. |