Managed Object - EventHistoryCollector

Returned by: CreateCollectorForEvents
Extends: HistoryCollector
See also: Event

Managed Object Description

EventHistoryCollector provides a mechanism for retrieving historical data and updates when the server appends new events.

Properties

Name	Type	Description
latestPage*	Event[]	The items in the 'viewable latest page'. As new events that match the collector's EventFilterSpec are created, they are added to this page, and the oldest events are removed from the collector to keep the size of the page to that allowed by HistoryCollector#setLatestPageSize. The "oldest event" is the one with the smallest key (event ID). The events in the returned page are unordered.
Properties inherited from HistoryCollector
filter

Name

Type

Description

latestPage*

Event[]

The items in the 'viewable latest page'. As new events that match the collector's EventFilterSpec are created, they are added to this page, and the oldest events are removed from the collector to keep the size of the page to that allowed by HistoryCollector#setLatestPageSize.

The "oldest event" is the one with the smallest key (event ID). The events in the returned page are unordered.

Properties inherited from HistoryCollector

filter

*May not be present

Methods

Methods defined in this Managed Object
ReadNextEvents, ReadPreviousEvents
Methods inherited from HistoryCollector
DestroyCollector, ResetCollector, RewindCollector, SetCollectorPageSize

ReadNextEvents

Reads the 'scrollable view' from the current position. The scrollable position is moved to the next newer page after the read. No item is returned when the end of the collector is reached.

Required Privileges: None

Parameters

Name	Type	Description
_this	ManagedObjectReference	A reference to the EventHistoryCollector used to make the method call.
maxCount	xsd:int	The maximum number of items in the page.

Return Value

Type	Description
Event[]

Faults

Type	Description
InvalidArgument	Thrown if maxCount is out of range.
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="ReadNextEvents" type="vim25:ReadNextEventsRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="ReadNextEventsResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:Event" minOccurs="0" maxOccurs="unbounded"/>
               </sequence>
            </complexType>
         </element>

ReadPreviousEvents

Reads the 'scrollable view' from the current position. The scrollable position is moved to the next older page after the read. No item is returned when the head of the collector is reached.

Required Privileges: None

Parameters

Name	Type	Description
_this	ManagedObjectReference	A reference to the EventHistoryCollector used to make the method call.
maxCount	xsd:int	The maximum number of items in the page.

Return Value

Type	Description
Event[]

Faults

Type	Description
InvalidArgument	Thrown if maxCount is out of range.
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="ReadPreviousEvents" type="vim25:ReadPreviousEventsRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="ReadPreviousEventsResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:Event" minOccurs="0" maxOccurs="unbounded"/>
               </sequence>
            </complexType>
         </element>