Contnrs unit

The contnrs unit implements various general-purpose classes:

Object lists

lists that manage objects instead of pointers, and which automatically dispose of the objects.

Component lists

lists that manage components instead of pointers, and which automatically dispose the components.

Class lists

lists that manage class pointers instead of pointers.

Stacks

Stack classes to push/pop pointers or objects

Queues

Classes to manage a FIFO list of pointers or objects

Hash lists

General-purpose Hash lists.

Classes and records

EDuplicate	class	Exception raised when a key is stored twice in a hash table.
EKeyNotFound	class	Exception raised when a key is not found.
TBucket	record	Bucket record.
TBucketItem	record	Record used in bucket list.
TBucketList	class	Default bucket list implementation.
TClassList	class	List of classes.
TComponentList	class	List to manage component instances.
TCustomBucketList	class	Custom bucket list class.
TFPCustomHashTable	class	Hash class.
TFPDataHashTable	class	Hash table for data pointers.
TFPHashList	class	Hash list class for pointer data.
TFPHashListItem	record
TFPHashObject	class	Hash-list aware object.
TFPHashObjectList	class
TFPObjectHashTable	class	Hash table for object instances.
TFPObjectList	class	TFPList descendent which manages objects.
TFPStringHashTable	class	Hash table for string data.
THTCustomNode	class	Single item in the hash table.
THTDataNode	class	Data node for pointer hashtable.
THTObjectNode	class	Node type for TFPObjectHashTable.
THTOwnedObjectNode	class	Node type for owned objects.
THTStringNode	class	Node type for TFPStringHashTable.
TObjectBucketList	class	Bucket list using objects instead of pointers.
TObjectList	class	List to manage object instances.
TObjectQueue	class
TObjectStack	class	Object instances stack.
TOrderedList	class	Base class for queues and stacks.
TQueue	class	Pointer queue.
TStack	class	Pointer Stack.

Procedures and functions

HashString	function
RSHash	function	Standard hash value calculating function.
ViDataSize	function
ViGet	function
ViSet	procedure

Types

PBucket	type	Pointer to TBucket" type.
PViHashListItem	type
TBucketArray	type	Array of TBucket records.
TBucketItemArray	type	Array of TBucketItem records.
TBucketListSizes	enumeration	Enumerated type to indicate bucket list size.
TBucketProc	procedure type	Callback for the ForEach call.
TBucketProcObject	procedure type	Callback for the ForEach call.
TDataIteratorCallBack	procedure type	Data iterator CallBack.
TDataIteratorMethod	procedure type	Data iterator method.
THashFunction	procedure type	Hash calculation function.
THTCustomNodeClass	type	Class of THTCustomNodeClass.
THTNode	type	Alias for THTDataNode.
TIteratorMethod	type	Iterator prototype for TFPCustomHashTable.
TObjectIteratorCallback	procedure type	iterate callback prototype.
TObjectIteratorMethod	procedure type	iterate callback prototype.
TObjectListCallback	procedure type	Method callback type for TFPObjectList.ForEachCall.
TObjectListStaticCallback	procedure type	Plan procedure callback type for TFPObjectList.ForEachCall.
TStringIteratorCallback	procedure type	Iterator callback type.
TStringIteratorMethod	procedure type	Iterator callback type.
TViRehashMode	enumeration

Constants

MaxHashListSize	constant	Maximum size of hash list.
MaxHashStrSize	constant	Maximum string size.
MaxHashTableSize	constant	Maximum size of the hash table.
MaxItemsPerHash	constant	Maximum number of items in each hash bucket.
ViEmpty	constant
ViRealIndexOffset	constant

Uses

• SysUtils
• Classes