Interface ActionList

All Superinterfaces:
AutoCloseable, Closeable, OsidList, OsidList
public interface ActionList extends OsidList

Like all OsidLists, ActionList provides a means for accessing Action elements sequentially either one at a time or many at a time. Examples: 

while (al.hasNext()) {
     Action action = al.getNextAction();
}
or 
while (al.hasNext()) {
     Action[] actions = al.getNextActions(al.available());
}

Like all OsidLists, ActionList is stateful and must not be accessed by multiple processing threads.

  • Method Details

    • getNextAction

      Action getNextAction() throws OperationFailedException
      Gets the next Action in this list.
      Returns:
      the next Action in this list. The hasNext() method should be used to test that a next Action is available before calling this method.
      Throws:
      IllegalStateException - no more elements available in this list
      OperationFailedException - unable to complete request
      Compliance:
      mandatory - This method must be implemented.

    • getNextActions

      Action[] getNextActions(long n) throws OperationFailedException
      Gets the next set of Action elements in this list. The specified amount must be less than or equal to the return from available().
      Parameters:
      n - the number of Action elements requested which must be less than or equal to available()
      Returns:
      an array of Action elements. The length of the array is less than or equal to the number specified.
      Throws:
      IllegalStateException - no more elements available in this list
      OperationFailedException - unable to complete request
      Compliance:
      mandatory - This method must be implemented.