OSID - osid.acknowledgement.CreditList Service Interface Definition

Interface	osid.acknowledgement.CreditList
Implements	`osid.OsidList`
Used By	`osid.acknowledgement.CreditBillingSession`
	`osid.acknowledgement.CreditLookupSession`
	`osid.acknowledgement.CreditQuerySession`
	`osid.acknowledgement.CreditSearchResults`
Description	Like all `OsidLists`, `CreditList` provides a means for accessing `Credit` elements sequentially either one at a time or many at a time. Examples: while (cl.hasNext()) { Credit credit = cl.getNextCredit(); } or while (cl.hasNext()) { Credit[] credits = cl.getNextCredits(cl.available()); }
Method	getNextCredit
Description	Gets the next `Credit` in this list.
Return	`osid.acknowledgement.Credit`		the next `Credit` in this list. The `hasNext()` method should be used to test that a next `Credit` 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	getNextCredits
Description	Gets the next set of `Credit` elements in this list. The specified amount must be less than or equal to the return from `available()`.
Parameters	`cardinal`	`n`	the number of `Credit` elements requested which must be less than or equal to `available()`
Return	`osid.acknowledgement.Credit[]`		an array of `Credit` 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.