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firebird-mirror/src/jrd/VirtualTable.h
2009-10-30 10:59:52 +00:00

74 lines
1.9 KiB
C++

/*
* The contents of this file are subject to the Initial
* Developer's Public License Version 1.0 (the "License");
* you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
*
* Software distributed under the License is distributed AS IS,
* WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights
* and limitations under the License.
*
* The Original Code was created by Dmitry Yemanov
* for the Firebird Open Source RDBMS project.
*
* Copyright (c) 2006 Dmitry Yemanov <dimitr@users.sf.net>
* and all contributors signed below.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
* Adriano dos Santos Fernandes
*/
#ifndef JRD_VIRTUAL_TABLE_H
#define JRD_VIRTUAL_TABLE_H
namespace Jrd {
class RecordStream //// TODO: create RecordStream.h
{
public:
virtual ~RecordStream()
{
}
virtual unsigned dump(UCHAR* buffer, unsigned bufferLen) = 0;
virtual void open(thread_db* tdbb) = 0;
virtual void close(thread_db* tdbb) = 0;
virtual bool get(thread_db* tdbb) = 0;
virtual void markRecursive() = 0;
};
class VirtualTable : public RecordStream
{
private:
explicit VirtualTable(RecordSource* aRsb)
: rsb(aRsb)
{
}
public:
static RecordSource* create(thread_db*, OptimizerBlk*, SSHORT);
static void erase(thread_db*, record_param*);
static void modify(thread_db*, record_param*, record_param*);
static void store(thread_db*, record_param*);
public:
virtual unsigned dump(UCHAR* buffer, unsigned bufferLen);
virtual void open(thread_db* tdbb);
virtual void close(thread_db* tdbb);
virtual bool get(thread_db* tdbb);
virtual void markRecursive();
private:
RecordSource* rsb;
};
} // namespace Jrd
#endif // JRD_VIRTUAL_TABLE_H