Interface DirectionList

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

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

while (dl.hasNext()) {
     Direction direction = dl.getNextDirection();
}
or 
while (dl.hasNext()) {
     Direction[] directions = dl.getNextDirections(dl.available());
}

  • Method Summary

    Modifier and Type
    Method
    Description
    Direction
    getNextDirection()
    Gets the next Direction in this list.
    Direction[]
    getNextDirections(long n)
    Gets the next set of Direction elements in this list.

    Methods inherited from interface Closeable

    close

    Methods inherited from interface OsidList

    close
    Modifier and Type
    Method
    Description
    void
    close()
    Close this list.

    Methods inherited from interface OsidList

    available, hasNext, skip
    Modifier and Type
    Method
    Description
    long
    available()
    Gets the number of elements available for retrieval.
    boolean
    hasNext()
    Tests if there are more elements in this list.
    void
    skip(long n)
    Skip the specified number of elements in the list.

  • Method Details

    • getNextDirection

      Direction getNextDirection() throws OperationFailedException
      Gets the next Direction in this list.
      Returns:
      the next Direction in this list. The hasNext() method should be used to test that a next Direction 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.

    • getNextDirections

      Direction[] getNextDirections(long n) throws OperationFailedException
      Gets the next set of Direction elements in this list. The specified amount must be less than or equal to the return from available() .
      Parameters:
      n - the number of Direction elements requested which must be less than or equal to available()
      Returns:
      an array of Direction 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.