Class TgoSet

Unit

Grijjy.Collections

Declaration

type TgoSet<T> = class(TgoReadOnlySet<T>)

Description

A generic unordered set of values. Is similar to TList<T> in that it contains a list of items, but the items are not in any specific order. It uses a hash table to quickly lookup items in the set.

This class is also similar to TDictionary<TKey, TValue>, but with only keys and no values.

This class is typically used when you need to quickly find items in a collection, but don't need any specific ordering.

See also TgoObjectSet<T> for a set that owns its items

Hierarchy

• TEnumerable
• TgoReadOnlySet
• TgoSet

Overview

Methods

	procedure Add(const AItem: T);
	procedure AddOrSet(const AItem: T);
	procedure Remove(const AItem: T);
	procedure Clear; virtual;

Description

Methods

	procedure Add(const AItem: T);
Adds an item to the set, raising an exception if the set already contains the item. Parameters AItem the item to add.

	procedure AddOrSet(const AItem: T);
Adds an item to the set if it doesn't exist yet. If the set already contains the item, then nothing happens. Parameters AItem the item to add.

	procedure Remove(const AItem: T);
Removes an item from the set. Does nothing if the set does not contain the item. Parameters AItem the item to remove.

	procedure Clear; virtual;
Clears the set.