1 /***************************************************************************
2 * Copyright (C) 2007 by www.databasecache.com *
3 * Contact: praba_tuty@databasecache.com *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 ***************************************************************************/
17 #ifndef CATALOGTABLE_H
18 #define CATALOGTABLE_H
27 extern char ChunkName
[MAX_CHUNKS
][CHUNK_NAME_LEN
];
51 // chunk id 0 ->userChunkTable
53 // chunk id 10->DATABASE
57 // chunk id 14->ACCESS
59 // chunk id 16->INDEXFIELD
62 LockTableHashBucketId
= 1,
75 IndexFieldTableId
= 16,
76 ForeignKeyTableId
= 17,
77 ForeignKeyFieldTableId
= 18,
78 LastCatalogID
= 25 //marks the end of catalog chunk ID.
85 char tblName_
[IDENTIFIER_LENGTH
];
87 size_t length_
; //length of the tuple
91 void* varcharChunkPtr_
;
94 class CatalogTableTABLE
96 Database
*systemDatabase_
;
98 CatalogTableTABLE(Database
*db
) { systemDatabase_
= db
; }
100 //Last argument is OUT parameter which will contain the
101 //pointer to the inserted tuple
102 DbRetVal
insert(const char *name
, int id
, size_t size
,
103 int numFlds
, void* chunk
, void *&tptr
, void *vcchunk
);
105 //Second argument is OUT parameter which will contain the
106 //chunk pointer of this table
107 //Third argument is OUT parameter which will contain the
108 //pointer to the removed tuple
109 DbRetVal
remove(const char *name
, void *&chunk
, void *&tptr
);
111 DbRetVal
getChunkAndTblPtr(const char *name
, void *&chunk
, void *&tptr
, void*& vcchunk
);
112 DbRetVal
setChunkPtr(const char *name
, void *firstPage
, void *curPage
);
120 char fldName_
[IDENTIFIER_LENGTH
];
121 int tblID_
; //table id where this field resides
122 void* tblPtr_
; //pointer to tuple in catalog table TABLE
124 size_t length_
; //length of the field
125 size_t offset_
; //offset (in bytes) into tuple
126 //currently default value is supported for string and binary
127 //less than length 32 bytes
128 char defaultValueBuf_
[DEFAULT_VALUE_BUF_LENGTH
];
129 long long autoVal_
;//[DEFAULT_VALUE_BUF_LENGTH];
136 bool isAutoIncrement_
;
139 class CatalogTableFIELD
141 Database
*systemDatabase_
;
143 CatalogTableFIELD(Database
*db
) { systemDatabase_
= db
; }
145 //returns -1 on error
146 DbRetVal
insert(FieldIterator
&iter
, int tblID
, void *tblPtr
);
148 DbRetVal
remove(void *tblPtr
);
150 //II argument is OUT parameter
151 //field list is populated from the catalog table for
152 // the table pointed by tblPtr
153 void *getFieldInfo( void* tblPtr
, FieldList
&list
);
156 //returns the pointer to fields for the corresponding name
157 //in field name list as an array
158 DbRetVal
getFieldPtrs(FieldNameList
&fldList
,void *tptr
, char **&array
);
164 char userName_
[IDENTIFIER_LENGTH
];
165 char password_
[IDENTIFIER_LENGTH
];
168 class CatalogTableUSER
170 Database
*systemDatabase_
;
172 CatalogTableUSER(Database
*db
) { systemDatabase_
= db
; }
174 //returns -1 on error
175 DbRetVal
insert(const char *name
, const char *pass
);
176 DbRetVal
authenticate(const char *name
, const char *pass
,
177 bool &isAuthenticated
, bool &isDba
);
178 DbRetVal
remove(const char *name
);
179 DbRetVal
changePass(const char *name
, const char *pass
);
186 char userName_
[IDENTIFIER_LENGTH
];
187 char dbName_
[IDENTIFIER_LENGTH
];
194 char dbName_
[IDENTIFIER_LENGTH
];
196 size_t maxSize_
; //maximum size of database
197 caddr_t dbStart_
; //address where the database is mapped
204 char indName_
[IDENTIFIER_LENGTH
];
205 int tblID_
; //table id of the table
206 void* tblPtr_
; //pointer to tuple in catalog table TABLE
207 IndexType indexType_
;
208 void* chunkPtr_
; //pointer to the index chunk
212 void *hashNodeChunk_
;
213 void *fstIndFld_
;//pointer to fisrt index field
216 class CatalogTableINDEX
218 Database
*systemDatabase_
;
220 CatalogTableINDEX(Database
*db
) { systemDatabase_
= db
; }
223 //last arg is OUT parameter which will give the pointer to
225 DbRetVal
insert(const char *name
, void *tblPtr
, int numFlds
, bool isUnique
,
226 void* chunk
, int bucketSize
, void *hChunk
, void *&tupleptr
);
228 //Second argument is OUT parameter which will contain the
229 //chunk pointer of this table
230 //Third argument is OUT parameter which will contain the
231 //pointer to the removed tuple
232 DbRetVal
remove(const char *name
, void *&chunk
, void *&hchunk
, void *&iptr
);
233 DbRetVal
get(const char *name
, void *&chunk
, void *&hchunk
, void *&iptr
);
234 DbRetVal
setChunkPtr(const char *name
, ObjectType tp
, void *chunk
, void *firstPage
, void *curPage
);
236 //get the number of indexes on table pointed by tblPtr
237 int getNumIndexes(void *tblPtr
);
239 char* getIndexName(void *tblPtr
, int pos
);
241 //gets all the index ptrs as array for the table pointed by tblPtr
242 void getIndexPtrs(void *tblPtr
, char **&array
);
244 static ChunkIterator
getIterator(void *iptr
);
245 static int getNoOfBuckets(void *iptr
);
246 static int getUnique(void *iptr
);
247 static char* getName(void *iptr
);
248 static int getOffsetOfFirstField(void *iptr
);
249 static IndexType
getType(void *iptr
);
256 void* indexPtr
; //pointer to tuple in catalog table INDEX
257 void* tablePtr
; //pointer to tuple in catalog table TABLE
258 void* fieldPtr
; //pointer to tuple in catalog table FIELD
262 class CatalogTableINDEXFIELD
264 Database
*systemDatabase_
;
266 CatalogTableINDEXFIELD(Database
*db
) { systemDatabase_
= db
; }
268 DbRetVal
insert(FieldNameList
&fldList
, void *indexPtr
,
269 void *tblPtr
, char **&fptr
);
271 DbRetVal
remove(void *iptr
);
273 DbRetVal
getFieldNameAndType(void *iptr
, char *&name
, DataType
&type
);
274 DbRetVal
getFieldInfo(void *index
, FieldList
&list
);
275 void printAllIndex();
276 ListIterator
getIndexListIterater(char *name
);
283 char fkName_
[IDENTIFIER_LENGTH
];
290 Database
*systemDatabase_
;
292 CatalogTableFK(Database
*db
) { systemDatabase_
= db
; }
293 DbRetVal
insert(char *name
, void *tFkPtr
,void *tPkPtr
);
294 DbRetVal
remove(void *tptr
);
295 void *getFkCTable(void* tptr
);
296 int getNumFkTable(void *ctptr
);
297 bool isFkTable(void *ctptr
);
298 void getPkTableName(void *ctptr
, char **&array
);
299 void getFkTableName(void *ctptr
, char **&array
);
300 int getNoOfPkTable(void *ctptr
);
301 int getNoOfFkTable(void *ctptr
);
302 DbRetVal
getPkFkFieldInfo(void *cpkptr
, void *cfkptr
, FieldNameList
&pklist
,FieldNameList
&pklist1
);
308 void* fkPtr_
;//pointer to tuple in catalog table CFK
313 class CatalogTableFKFIELD
315 Database
*systemDatabase_
;
317 CatalogTableFKFIELD(Database
*db
) { systemDatabase_
= db
; }
318 DbRetVal
insert(char *cFKName
, char **fkFldPtrs
, char **pkFldPtrs
,int totalFld
);
319 DbRetVal
remove(void *fptr
);