36 lines
1.3 KiB
Go
36 lines
1.3 KiB
Go
package dbdrivers
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// DBDriver is an interface that handles the operation uniqueness of each
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// type of database connection. For example, queries to obtain schema data
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// will vary depending on what type of database software is in use.
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// The goal of the DBDriver is to retrieve all table names in a database
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// using GetAllTableNames() if no table names are provided via flags,
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// to handle the database connection using Open() and Close(), and to
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// build the table information using GetTableInfo() and ParseTableInfo()
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type DBDriver interface {
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// GetAllTableNames connects to the database and retrieves all "public" table names
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GetAllTableNames() ([]string, error)
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// GetTableInfo builds an object of []DBTable containing the table information
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GetTableInfo(tableName string) ([]DBTable, error)
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// ParseTableInfo builds a DBTable out of a column name and column type.
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// Its main responsibility is to convert database types to Go types, for example
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// "varchar" to "string".
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ParseTableInfo(colName, colType, isNullable string) DBTable
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// Open the database connection
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Open() error
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// Close the database connection
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Close()
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}
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// DBTable holds a column name, for example "column_name", and a column type,
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// for example "int64". Column types are Go types, converted by ParseTableInfo.
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type DBTable struct {
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ColName string
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ColType string
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IsNullable string
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}
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