OSID - osid.repository.CompositionList Service Interface Definition

Interface	osid.repository.CompositionList
Implements	`osid.OsidList`
Used By	`osid.repository.AssetCompositionSession`
	`osid.repository.Composition`
	`osid.repository.CompositionLookupSession`
	`osid.repository.CompositionQuerySession`
	`osid.repository.CompositionRepositorySession`
	`osid.repository.CompositionSearchResults`
	`osid.repository.rules.CompositionEnablerRuleLookupSession`
Description	Like all `OsidLists`, `CompositionList` provides a means for accessing `Composition` elements sequentially either one at a time or many at a time. Examples: while (cl.hasNext()) { Composition composition = cl.getNextComposition(); } or while (cl.hasNext()) { Composition[] compositions = cl.getNextCompositions(cl.available()); }
Method	getNextComposition
Description	Gets the next `Composition` in this list.
Return	`osid.repository.Composition`		the next `Composition` in this list. The `hasNext()` method should be used to test that a next `Composition` is available before calling this method.
Errors	ILLEGAL_STATE		no more elements available in this list
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getNextCompositions
Description	Gets the next set of `Composition` elements in this list which must be less than or equal to the return from `available()`.
Parameters	`cardinal`	`n`	the number of `Composition` elements requested which must be less than or equal to `available()`
Return	`osid.repository.Composition[]`		an array of `Composition` elements. The length of the array is less than or equal to the number specified.
Errors	ILLEGAL_STATE		no more elements available in this list
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.