Class AVariantQueue

Unit

classwork

Declaration

type AVariantQueue = class(AVariantList)

Description

This class alters the behavior of AVariantList so that it can be used as a queue (first in, first out). It does this by modifying the behavior of AVariantList.pop so that it returns the first value in the list, instead of the last. Of course, like its parent, instances of AVariantQueue can also be accessed as indexed arrays, if desired.

Hierarchy

• TObject
• AnObject
• APrintingObject
• ALinkedList
• AVariantList
• AVariantQueue

Overview

Methods

function pop: Variant; override;

Description

Methods

	function pop: Variant; override;
Remove the first value from the list and return it to the caller. This method overrides the behavior inherited from AVariantList.pop so that it returns the first value in the list, instead of the last. If there are no items in the list, this method returns Variants.null.