System.JSON.Builders.TJSONIterator.DoRewindReader
Delphi
procedure DoRewindReader(AReader: TJsonReader); virtual;
C++
virtual void __fastcall DoRewindReader(System::Json::Readers::TJsonReader* AReader);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
procedure function |
protected | System.JSON.Builders.pas System.JSON.Builders.hpp |
System.JSON.Builders | TJSONIterator |
Description
Rewinds the data stream of the specified JSON reader.
Rewind and (indirectly) Find rely on this method to rewind the data stream of the source JSON reader.
The default implementation of DoRewindReader uses the rewinding procedure passed to the constructor of the iterator. If you do not pass a rewinding procedure to the constructor, it raises an exception.
You can override this method in subclasses to implement your own logic to rewind the data stream of the JSON reader. If you do, take into account that TJsonReader.Rewind only resets the state of the JSON reader; your implementation of DoRewindReader does not need to do this, your implementation must rewind the underlying data stream instead.