`TFileIndexDB`
pt		LoadFromStream
pt		SaveToStream
		Connect
		DisConnect
		CommitTrans

`TMemIndexDB`
pt		LoadFromStream
pt		SaveToStream
pt		Clear
		Create
		Destroy
		Connect
		DisConnect
		CommitTrans
		BeginTrans
		CompactDB
		CreateDB
		DeleteWordsFromFile
		AddSearchData
		FindSearchData
		GetAvailableWords
		CreateIndexerTables

`TCustomIndexDB`
pt		DoLog
		CreateDB
		Connect
		Disconnect
		CompactDB
		BeginTrans
		CommitTrans
		RollbackTrans
		DeleteWordsFromFile
		AddSearchData
		FindSearchData
		GetAvailableWords
		CreateIndexerTables
		ClearIndexerTables