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Copyright © 2010 Open Geospatial Consortium, Inc.
Table 3 – Resource Properties
Property name Description
Value
documentation Descriptive information about the resource
object.
Type
: Any
Default: none Cardinality
: [0..1] identifier
Identifier of the resource object.
Type
: GenericName
Default: none Cardinality
: [1] name
Names assigned to the resource object. Multiple names may be assigned to the same
resource.
Type
: GenericName
Default: none Cardinality
: [0..] policy
Defines behavior executed by the resource or available required when interacting with the
resource. See
Policies
package for further details.
Type
: Policy
Default: none Cardinality
: [0..]
6.2.1.2.2 ResourceWithLifetime Class
Resources may have a defined lifetime. A resource with lifetime may automatically terminate at a defined point in time or it may explicitly be terminated by another entity. A
ResourceWithLifetime
implements the
ResourceTermination
interface. A ResourceWithLifetime is a Resource and therefore inherits all properties that a
Resource has.
Copyright © 2010 Open Geospatial Consortium, Inc.
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Table 4 – ResourceWithLifetime Properties
Property name Description
Value
terminationEvent Endpoint
Endpoint of the entity that shall be notified by the producer when the subscription
terminated.
Type
: Endpoint
Default: none Cardinality
: [0..1] terminationTime Absolute point in time when the resource
terminates. Termination time is often requested and
computed based upon the current server time and a duration - this can be mapped to one
TM_Instant.
Type
: TM_Instant
Default: none Cardinality
: [0..1]
6.2.1.2.3 ResourceManager Interface
A system entity that provides access to resources is a
ResourceManager
. This interface defines the resource management operations.
Table 5 – ResourceManager Operation
Method Notes
getResource Retrieves a resource via its identifier.
6.2.1.2.4 ResourceTermination Interface
The
ResourceTermination
interface defines operations to reset the termination time of a resource with defined lifetime and to explicitly terminate such a resource.
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Copyright © 2010 Open Geospatial Consortium, Inc.
Table 6 – ResourceTermination Operations
Method Notes
renew Resets the termination time of the resource to a given time
instant. The resource may reject the request and send an exception, for example if the proposed termination time does
not conform to the resources termination time policies. Setting the termination time to a value in the past will - if the request is
accepted - lead to the resources termination according to its implementation when a resource has to check its termination
is not defined; however, it is recommended that the implementation terminates a resource shortly after the
termination time passed.
terminate Immediately terminates the resource.
6.2.1.3 EventMetadata Package
This package defines types classes that capture eventing metadata. The data is useful for discovering information relevant for publish subscribe systems. Primarily the definition
of event types as well as event channels together with their relationships can be modeled and discovered see chapter 7.
Figure 4: EventMetadata types
