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Manage a collection of pointers of objects
Source position: objects.pp line 404
type TCollection = object(TObject) |
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Pointer to list of items. |
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Current count of items |
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Max number of items |
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Number of pointers to allocate when adding items. |
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constructor Init(); |
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Instantiate a new collection. |
constructor Load(); |
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Initialize a new collection and load collection from a stream. |
destructor Done; virtual; |
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Clean up collection, release all memory. |
function At(); |
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Return the item at a certain index. |
function IndexOf(); virtual; |
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Find the position of a certain item. |
function GetItem(); virtual; |
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Read one item off the stream. |
function LastThat(); |
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Return last item which matches a test. |
function FirstThat(); |
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Return first item which matches a test. |
procedure Pack; |
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Remove all >Nil pointers from the collection. |
procedure FreeAll; |
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Release all objects from the collection. |
procedure DeleteAll; |
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Delete all elements from the collection. Objects are not destroyed. |
procedure Free(); |
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Free item from collection, calling it's destructor. |
procedure Insert(); virtual; |
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Insert a new item in the collection at the end. |
procedure Delete(); |
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Delete an item from the collection, but does not destroy it. |
procedure AtFree(); |
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Free an item at the indicates position, calling it's destructor. |
procedure FreeItem(); virtual; |
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Destroy a non-nil item. |
procedure AtDelete(); |
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Delete item at certain position. |
procedure ForEach(); |
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Execute procedure for each item in the list. |
procedure SetLimit(); virtual; |
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Set maximum number of elements in the collection. |
procedure Error(); virtual; |
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Set error code. |
procedure AtPut(); |
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Set collection item, overwriting an existing value. |
procedure AtInsert(); |
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Insert an element at a certain position in the collection. |
procedure Store(); |
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Write collection to a stream. |
procedure PutItem(); virtual; |
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Put one item on the stream |
end; |
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Manage a collection of pointers of objects |
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Basis of all objects |
The TCollection object manages a collection of pointers or objects. It also provides a series of methods to manipulate these pointers or objects.
Whether or not objects are used depends on the kind of calls you use. All kinds come in 2 flavors, one for objects, one for pointers.