Initial community commit

Src/nde/android/Table.h

@@ -0,0 +1,166 @@
+/* ---------------------------------------------------------------------------
+                           Nullsoft Database Engine
+                             --------------------
+                        codename: Near Death Experience
+--------------------------------------------------------------------------- */
+
+/* ---------------------------------------------------------------------------
+
+ Table Class Prototypes
+ Android (linux) implementation
+--------------------------------------------------------------------------- */
+
+#ifndef __TABLE_H
+#define __TABLE_H
+
+#include <stdio.h>
+#include "Scanner.h"
+#include <map>
+#include "IndexRecord.h"
+
+class Table : private Scanner
+{
+public:
+	// TODO: move these back to protected
+	VFILE *Handle;
+	using Scanner::index;
+	bool use_row_cache;
+	bool GLocateUpToDate;
+private:
+	void Init();
+	void Reset();
+
+private:
+	LinkedList *Scanners;
+
+protected:
+	char *Name;
+	char *IdxName;
+
+	VFILE *IdxHandle;
+	int AutoCreate;
+	Record *FieldsRecord;
+	IndexRecord *IndexList;
+	Database *db;
+	int Cached;
+	int numErrors;
+	using Scanner::Edition;
+	bool columns_cached;
+	unsigned char column_ids[256];
+	typedef std::map<int, Record*> RowCache;
+	RowCache rowCache;
+
+	// Tables
+	static bool Compact_ColumnWalk(Record *record, Field *entry, void *context_in);
+	static bool Compact_ColumnWalk2(Record *record, Field *entry, void *context_in);
+	static bool Compact_IndexWalk(Table *table, IndexField *entry, void *context);
+	static bool IndexWriteWalker(IndexRecord *record, Field *entry, void *context);
+	static bool IndexWalkerThunk(IndexRecord *record, Field *entry, void *context);
+	static bool IndexNewWalker(IndexRecord *record, Field *entry, void *context);
+	static bool BuildColumnCache(Record *record, Field *entry, void *context);
+public:
+	typedef bool (*IndexWalker)(Table *table, IndexField *entry, void *context);
+	Table(const char *TableName, const char *IdxName, int Create, Database *db, int Cached);
+	~Table();
+	bool Open();
+	void Close();
+
+	// Columns
+	ColumnField *NewColumn(unsigned char Id, const char *name, unsigned char type, bool indexUniques);
+
+	void DeleteColumn(ColumnField *field); // todo
+	void DeleteColumnByName(const char *name); // todo
+	void DeleteColumnById(unsigned char Id); // todo
+	void PostColumns(void);
+	NDE_API Record *GetColumns(void);
+	ColumnField *GetColumnByName(const char *FieldName);
+	ColumnField *GetColumnById(unsigned char Idx);
+	unsigned char GetColumnType(unsigned char Id);
+
+	// Fields
+	using Scanner::NewFieldByName;
+	using Scanner::NewFieldById;
+	using Scanner::GetFieldByName;
+	using Scanner::GetFieldById;
+	using Scanner::DeleteField;
+	using Scanner::DeleteFieldByName;
+	using Scanner::DeleteFieldById;
+
+	// Records
+	using Scanner::First;
+	using Scanner::Last;
+	using Scanner::Next;
+	using Scanner::Previous;
+	using Scanner::Eof;
+	using Scanner::Bof;
+	using Scanner::New;
+	using Scanner::Insert;
+	using Scanner::Edit;
+	using Scanner::Cancel;
+	using Scanner::Post;
+	using Scanner::Delete;
+	using Scanner::GetRecordsCount;
+	using Scanner::GetRecordById;
+	using Scanner::GetRecordId;
+	void Sync(void);
+	using Scanner::LocateByName;
+	using Scanner::LocateById;
+	bool LocateByIdEx(int Id, int From, Field *field, int comp_mode);
+
+	// Indexes
+	void AddIndexByName(const char *FieldName, const char *KeyName);
+	void AddIndexById(unsigned char Id, const char *KeyName);
+
+	void WalkIndices(IndexWalker callback, void *context);
+
+	IndexField *GetIndexByName(const char *name);
+	IndexField *GetIndexById(unsigned char Id);
+	using Scanner::SetWorkingIndexByName;
+	using Scanner::SetWorkingIndexById;
+	bool CheckIndexing(void);
+	void DropIndexByName(const char *desc);
+	void DropIndexById(unsigned char Id);
+	void DropIndex(IndexField *Ptr);
+	void IndexModified(void);
+
+	// Filters
+	using Scanner::AddFilterByName;
+	using Scanner::AddFilterById;
+	using Scanner::AddFilterOp;
+	using Scanner::RemoveFilters;
+
+	// Scanners
+	Scanner *NewScanner();
+	Scanner *GetDefaultScanner();
+	void DeleteScanner(Scanner *scan);
+
+	// Misc
+	using Scanner::FragmentationLevel;
+	void Compact(int *progress = NULL);
+	void SetGlobalLocateUpToDate(bool is);
+
+	// Row Cache
+	void RowCache_Delete(int position);
+	void RowCache_Remove(int position);
+	void RowCache_Add(Record *record, int position);
+	Record *RowCache_Get(int position);
+	NDE_API void EnableRowCache();
+
+	// Searching
+	void SetFieldSearchableById(unsigned char field_id, bool searchable);
+
+	int HasErrors()
+	{
+		return numErrors > 0;
+	}
+	int NumErrors()
+	{
+		return numErrors;
+	}
+	void IncErrorCount()
+	{
+		numErrors++;
+	}
+};
+
+#endif