OSID - osid.subscription.PublisherQuerySession Service Interface Definition

Interface	osid.subscription.PublisherQuerySession
Implements	`osid.OsidSession`
Implemented By	`osid.subscription.PublisherSearchSession`
Used By	`osid.subscription.SubscriptionManager`
Used By	`osid.subscription.SubscriptionProxyManager`
Description	This session provides methods for searching `Publishers`. The search query is constructed using the `PublisherQuery`. The publisher record `Type` also specifies the record for the publisher query. Publishers may have a query record indicated by their respective record types. The query record is accessed via the `PublisherQuery`. The returns in this session may not be cast directly to these interfaces.
Method	canSearchPublishers
Description	Tests if this user can perform `Publisher` searches. A return of true does not guarantee successful authorization. A return of false indicates that it is known all methods in this session will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer search operations to unauthorized users.
Return	`boolean`		`false` if search methods are not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	getPublisherQuery
Description	Gets a publisher query.
Return	`osid.subscription.PublisherQuery`		the publisher query
Compliance	`mandatory`		This method must be implemented.
Method	getPublishersByQuery
Description	Gets a list of `Publishers` matching the given publisher query.
Parameters	`osid.subscription.PublisherQuery`	`publisherQuery`	the publisher query
Return	`osid.subscription.PublisherList`		the returned `PublisherList`
Errors	NULL_ARGUMENT		`publisherQuery` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		`publisherQuery` is not of this service
Compliance	`mandatory`		This method must be implemented.