Class JBlob

src/jrd/EngineInterface.h:51–93

class JProvider;

class JBlob final :
	public Firebird::RefCntIface<Firebird::IBlobImpl<JBlob, Firebird::CheckStatusWrapper> >
{
public:
	// IBlob implementation
	int release() override;
	void getInfo(Firebird::CheckStatusWrapper* status,
		unsigned int itemsLength, const unsigned char* items,
		unsigned int bufferLength, unsigned char* buffer) override;
	int getSegment(Firebird::CheckStatusWrapper* status, unsigned int length, void* buffer,
		unsigned int* segmentLength) override;
	void putSegment(Firebird::CheckStatusWrapper* status, unsigned int length, const void* buffer) override;
	void cancel(Firebird::CheckStatusWrapper* status) override;
	void close(Firebird::CheckStatusWrapper* status) override;
	int seek(Firebird::CheckStatusWrapper* status, int mode, int offset) override;			// returns position
	void deprecatedCancel(Firebird::CheckStatusWrapper* status) override;
	void deprecatedClose(Firebird::CheckStatusWrapper* status) override;

public:
	JBlob(blb* handle, StableAttachmentPart* sa);

	StableAttachmentPart* getAttachment()
	{
		return sAtt;
	}

	blb* getHandle() throw()
	{
		return blob;
	}

	void clearHandle()
	{
		blob = NULL;
	}

private:
	blb* blob;
	Firebird::RefPtr<StableAttachmentPart> sAtt;

	void freeEngineData(Firebird::CheckStatusWrapper* status);
	void internalClose(Firebird::CheckStatusWrapper* status);
};

class JTransaction final :
	public Firebird::RefCntIface<Firebird::ITransactionImpl<JTransaction, Firebird::CheckStatusWrapper> >