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TIHashTable<TKey>

The TIHashTable class implements and manages a hash table of TKey-interface associations. It stores interfaces (IUnknown and its descendants) indexed by a key. Hash tables provide constant time O(C) search access to any value in the table (using the key) as the table grows (unlike a TList where to search for an item is O(n). The TIHashTable object provides properties and methods to:

TInterfaceListIterator

The TInterfaceListIterator object provides an enumeration of all the interfaces in a RSInterfaceCollections.TInterfaceListPersistent object, it implements the CommonInterfaces.IInterfaceIterator interface. It effectively hides the underlying implementation, in this case a TInterfaceListPersistent, while still allowing access to all the interfaces stored in the implementation.

The object provides functionality similar to an Enumeration in Java.

To use the iterator is simple, get the iterator and then keep calling the RSInterfaceCollections.TInterfaceListIterator.NextElement method until the RSInterfaceCollections.TInterfaceListIterator.HasMoreElements method returns False. The iterator works by giving you the next element until the end of the list, there is no provision for getting the previous element. The iterator manages its own memory and will free itself when it is completely dereferenced (as long as you use an interface to access it).

TInterfaceListPersistent

To implement a TInterfaceList-clone that is descended from TPersistent and implements the CommonInterfaces.ICloneable interface.

TInterfaceListPersistent represents a list of interfaces.

Use TInterfaceListPersistent to manage a list of interfaces.

TIQueue

TIQueue maintains a first-in first-out array, or queue, of interfaces. Use a TIQueue object to store and maintain a first-in first-out list.

To use the class properly as a queue, use the RSInterfaceCollections.TIQueue.Push(IInterface) and RSInterfaceCollections.TIQueue.Pop methods, not Add or Items.
 

TIStack

Maintains a last-in first-out (LIFO) array, or stack, of interfaces.

Use a TIStack object to store and maintain a last-in first-out list. The TIStack object descends from RSInterfaceCollections.TIQueue but modifies the behavior of the Peek and Pop methods to return the last item added to the list.

TIStringHashTable

The TIStringHashTable class implements and manages a hash table of string-interface associations. It stores interfaces (IUnknown and its descendants) indexed by a string key. Hash tables provide constant time O(C) search access to any value in the table (using the key) as the table grows (unlike a TStringList where to search for an item is O(n). The TIStringHashTable object provides properties and methods to:

TStringsIterator

The TStringsIterator object implements the CommonInterfaces.IIterator , CommonInterfaces.IObjectIterator, and CommonInterfaces.IStringIterator interfaces for an underlying TStrings Object. It provides an enumeration of all the items in a TStrings object or its descendants. It effectively hides the underlying implementation, in this case a TStrings, while still allowing access to all the items stored in the implementation.

The object provides functionality similar to an Enumeration in Java.

To use the iterator is simple, get the iterator as an IIterator, IObjectIterator, or IStringIterator interface and then keep calling the     NextElement method of the interface until the     HasMoreElements method returns False. The iterator works by giving you the next element until the end of the list, there is no provision for getting the previous element. The iterator manages its own memory and will free itself when it is completely dereferenced (as long as you use an interface to access it). The NextElement and CurrentElement methods of the IObjectIterator interface have been mapped to the     NextElementO and     CurrentElementO of this object; it is completely transparent to the user of the interface. Similarly, the     NextElementP and     CurrentElementP methods implement the NextElement and CurrentElement methods of the IIterator interface.