AbstractArrayListIterator

Short summary

An abstract class to implement the basic datastructure dependency to array lists.

Access	Abstract	Final	Extends	Implements
	Yes	No	AbstractIterator	IArrayListIterator

UML Diagram

Parameters

none

Methods

attachArrayList

• Parameters:
  • list (REFERENCE TO ArrayList): The list to be attached. Should be a reference of type ArrayList
• Return type: VOID

This method attaches an array list to the iterator.…

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)
  • arrayList (REFERENCE TO ArrayList): the array list which should be iterated, can be 0
• 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): control bit to start or abort the iterate (see SingleExecutionState)
• 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 AbstractArrayListIterator EXTENDS AbstractIterator IMPLEMENTS IArrayListIterator
VAR	
	{attribute 'hide'}
	list 			:REFERENCE TO ArrayList;
	nextIndex 		:__XWORD;
	direction 		:IterationDirection;
END_VAR