mirror of
https://github.com/FirebirdSQL/firebird.git
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123 lines
2.3 KiB
C++
123 lines
2.3 KiB
C++
/*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
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*
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* Software distributed under the License is distributed AS IS,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied.
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* See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Original Code was created by Adriano dos Santos Fernandes
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* for the Firebird Open Source RDBMS project.
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*
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* Copyright (c) 2008 Adriano dos Santos Fernandes <adrianosf@uol.com.br>
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* and all contributors signed below.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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#ifndef DSQL_NODES_H
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#define DSQL_NODES_H
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#include "../jrd/common.h"
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#include "../dsql/dsql.h"
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namespace Jrd {
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class CompilerScratch;
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class Node : public Firebird::PermanentStorage
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{
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public:
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explicit Node(MemoryPool& pool)
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: PermanentStorage(pool),
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compiledStatement(NULL)
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{
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}
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virtual ~Node()
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{
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}
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public:
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Node* dsqlPass(CompiledStatement* aCompiledStatement)
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{
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compiledStatement = aCompiledStatement;
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return dsqlPass();
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}
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public:
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virtual void print(Firebird::string& text, Firebird::Array<dsql_nod*>& nodes) const = 0;
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protected:
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virtual Node* dsqlPass()
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{
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return this;
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}
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protected:
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CompiledStatement* compiledStatement;
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};
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class DdlNode : public Node
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{
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public:
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explicit DdlNode(MemoryPool& pool)
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: Node(pool)
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{
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}
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protected:
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virtual Node* dsqlPass()
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{
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compiledStatement->req_type = REQ_DDL;
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return this;
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}
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public:
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virtual void execute(thread_db* tdbb, jrd_tra* transaction) = 0;
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};
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class DmlNode : public Node
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{
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public:
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explicit DmlNode(MemoryPool& pool)
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: Node(pool)
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{
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}
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public:
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virtual DmlNode* pass2(thread_db* tdbb, CompilerScratch* csb, jrd_nod* aNode);
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public:
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virtual void genBlr() = 0;
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virtual DmlNode* pass1(thread_db* tdbb, CompilerScratch* csb) = 0;
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virtual DmlNode* pass2(thread_db* tdbb, CompilerScratch* csb) = 0;
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virtual jrd_nod* execute(thread_db* tdbb, jrd_req* request) = 0;
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protected:
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jrd_nod* node;
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};
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class StmtNode : public DmlNode
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{
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public:
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explicit StmtNode(MemoryPool& pool)
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: DmlNode(pool)
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{
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}
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};
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} // namespace
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#endif // DSQL_NODES_H
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