SQLImplementation.h

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00001 /*
00002  *    Copyright 2004-2006 Intel Corporation
00003  * 
00004  *    Licensed under the Apache License, Version 2.0 (the "License");
00005  *    you may not use this file except in compliance with the License.
00006  *    You may obtain a copy of the License at
00007  * 
00008  *        http://www.apache.org/licenses/LICENSE-2.0
00009  * 
00010  *    Unless required by applicable law or agreed to in writing, software
00011  *    distributed under the License is distributed on an "AS IS" BASIS,
00012  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  *    See the License for the specific language governing permissions and
00014  *    limitations under the License.
00015  */
00016 
00017 #ifndef _OASYS_SQL_IMPLEMENTATION_H_
00018 #define _OASYS_SQL_IMPLEMENTATION_H_
00019 
00020 
00021 #include <string.h>
00022 #include "Serialize.h"
00023 
00024 namespace oasys {
00025 
00029 class SQLImplementation {
00030 public:
00034     SQLImplementation(const char* binary_datatype,
00035                       const char* boolean_datatype)
00036         : binary_datatype_(binary_datatype),
00037           boolean_datatype_(boolean_datatype) {}
00038 
00042     virtual int connect(const char* dbname) = 0;
00043 
00047     virtual int close() = 0;
00048 
00052     virtual bool has_table(const char* tablename) = 0;
00053 
00058     virtual int exec_query(const char* query) = 0;
00059     
00063     virtual int num_tuples() = 0;
00064 
00068     const char* binary_datatype() { return binary_datatype_; }
00069 
00073     const char* boolean_datatype() { return boolean_datatype_; }
00074 
00078     virtual const char* escape_string(const char* from) = 0;
00079     
00083     virtual const u_char* escape_binary(const u_char* from, int len) = 0;
00084     
00089     virtual const u_char* unescape_binary(const u_char* from) = 0;
00090     
00094     virtual const char* get_value(int tuple_no, int field_no) = 0;
00095     
00096     virtual ~SQLImplementation();
00097 
00098 protected:
00099     const char* binary_datatype_;       
00100     const char* boolean_datatype_;      
00101     
00102 private:
00103     SQLImplementation();                
00104 };
00105 
00106 } // namespace oasys
00107 
00108 #endif /* _OASYS_SQL_IMPLEMENTATION_H_ */

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