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Base class for streaming system and persistent properties.
Source position: classesh.inc line 428
type TPersistent = class(TObject, IFPObserved) end; |
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public |
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destructor Destroy; override; |
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Destroys the TPersistent instance. |
procedure Assign(); virtual; |
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Assign the contents of one class to another. |
procedure FPOAttachObserver(); |
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Add an observer to the list of observers. |
procedure FPODetachObserver(); |
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Remove an observer from the list of observers |
procedure FPONotifyObservers(); |
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Notify observers of changes. |
function GetNamePath; virtual; |
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Returns a string that can be used to identify the class instance. |
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Base class for streaming system and persistent properties. |
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Base class of all classes. |
TPersistent is the basic class for the streaming system. Since it is compiled in the {$M+} state, the compiler generates RTTI (Run-Time Type Information) for it and all classes that descend from it. This information can be used to stream all properties of classes.
It also introduces functionality to assign the contents of 2 classes to each other.
TPersistent implements the IFPObserved interface for the benefit of descendent classes, but does not call IFPObserved.FPONotifyObservers. Descendents such as TStrings and TCollection and TCollectionItem do use it.
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Base class for all components that need owner-owned functionality. |
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Interface implemented by an object that can be observed. |
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Class to manage arrays or collections of strings |
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Base class to manage collections of named objects. |
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Basic object that is managed by a TCollection class. |