TFPHashList class

In unit Contnrs

Hash list class for pointer data.

Declaration

pascal

TFPHashList = class(TObject)

Inheritance

TFPHashList
TObject

Description

TFPHashList implements a fast hash class. The class is built for speed, therefore the key values can be shortstrings only, and the data can only be non-nil pointers.

if a base class for an own hash class is wanted, the TFPCustomHashTable class can be used. If a hash class for objects is needed instead of pointers, the TFPHashObjectList class can be used.

Properties

`Count`	public	Current number of elements in the list.
`Capacity`	public	Capacity of the list.
`Items`	public	Indexed array with pointers.
`List`	public	Low-level hash list.

Methods

`Create`	public	Create a new instance of the hashlist.
`Destroy`	public	Removes an instance of the hashlist from the heap.
`Add`	public	Add a new key/data pair to the list.
`Clear`	public	Clear the list.
`NameOfIndex`	public	Returns the key name of an item by index.
`HashOfIndex`	public	Return the hash value of an item by index.
`GetNextCollision`	public	Get next collision number.
`Delete`	public	Delete an item from the list.
`Error`	public	Raise an error.
`Extract`	public	Extract a pointer from the list.
`IndexOf`	public	Return the index of the data pointer.
`Find`	public	Find data associated with key.
`FindIndexOf`	public	Return index of named item.
`FindWithHash`	public	Find first element with given name and hash value.
`Rename`	public	Rename a key.
`Remove`	public	Remove first instance of a pointer.
`Pack`	public	Remove nil pointers from the list.
`ForEachCall`	public	Call a procedure for each element in the list.

Inherited

From TObject (40)

AfterConstruction BeforeDestruction CheckDisposed ClassInfo ClassName ClassNameIs ClassParent ClassType CleanupInstance DefaultHandler DefaultHandlerStr Dispatch DispatchStr Disposed DisposeOf Equals FieldAddress Free FreeInstance GetDisposed GetHashCode GetInterface GetInterfaceByStr GetInterfaceEntry GetInterfaceEntryByStr GetInterfaceTable GetInterfaceWeak GetLastCastErrorInfo InheritsFrom InitInstance InstanceSize MethodAddress MethodName newinstance QualifiedClassName SafeCallException StringMessageTable SystemHasExtendedRTTI ToString UnitName

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.