AbstractLinkedListIterator

Access	Abstract	Final	Extends	Implements
	Yes	No	AbstractIterator	ILinkedListIterator

UML Diagram

Parameters

none

Methods

attachLinkedList

• Parameters:
  • list (REFERENCE TO LinkedList)
• Return type: CNM_ReturnTypes.SingleExecutionResult

…

FB_init

• Parameters:
  • bInitRetains (BOOL): if TRUE, the retain variables are initialized (warm start / cold start)
  • bInCopyCode (BOOL): if TRUE, the instance afterwards gets moved into the copy code (online change)
  • list (REFERENCE TO LinkedList): list that is used to iterate
• Return type: BOOL

The constructor FB_init is needed to create an unique hash code.…

hasNext

• Return type: BOOL

This method returns if there exists another element to iterate to.…

iterate

• Parameters:
  • execute (BOOL)
• Return type: CNM_ReturnTypes.SingleExecutionState

This method returns the next object in the iteration and returns an execution state.…

reset

• Return type: VOID

This method resets the iterator.…

Code

Declaration

FUNCTION_BLOCK ABSTRACT AbstractLinkedListIterator EXTENDS AbstractIterator IMPLEMENTS ILinkedListIterator
VAR	
	{attribute 'hide'}
	list 				:REFERENCE TO LinkedList;
	currentElement		:CNM_CollectionInterfaces.IDoublyLinkedElement;
	direction 			:IterationDirection;
END_VAR