TDAOracleBaseDriver
Overview
The TDAOracleBaseDriver class is the base class for descendant classes which represent Oracle drivers (for example Direct Oracle Access (DOA) or Devart Oracle Data Access Components (ODAC)).
The TDAOracleBaseDriver class can be used as the base driver for custom Oracle drivers. To learn more about creating DA drivers, please refer to the article How to create a Data Abstract Driver (Delphi)).
Location
- Unit: uDAOracleInterfaces.pas
- Ancestry: TComponent | TDAEDriver | TDAOracleBaseDriver
CustomizeConnectionObject protected dynamic (declared in TDAEDriver)
Provides a way to perform additional procedures after acquiring a connection with the NewConnection methods.
procedure CustomizeConnectionObject(aConnection: TDAEConnection)
Parameters:
- aConnection: Reference to the used connection
Description protected (declared in TDAEDriver)
Driver's description.
property Description: string read
DoSetTraceOptions protected virtual (declared in TDAEDriver)
Executes actions specific to the implementation to perform event monitoring.
procedure DoSetTraceOptions(TraceActive: Boolean; TraceFlags: TDATraceOptions; Callback: TDALogTraceEvent)
Parameters:
- TraceActive: Current mode
- TraceFlags: Set of TDATraceOption
- Callback: Method to call in various OnTraceEvent event handlers
DriverID protected (declared in TDAEDriver)
Returns the driver's ID.
property DriverID: string read
Finalize protected virtual safecall (declared in TDAEDriver)
Initializes the driver
procedure Finalize
GetAuxDrivers protected virtual safecall (declared in TDAEDriver)
Returns a list of available auxiliary drivers.
procedure GetAuxDrivers(out List: IROStrings)
Parameters:
- List: List of auxiliary driver names
GetAuxParams protected virtual safecall (declared in TDAEDriver)
Returns a list of custom parameters for the specified driver.
procedure GetAuxParams(const AuxDriver: string; out List: IROStrings)
Parameters:
- AuxDriver: Aux driver name in question
- List: List of auxiliary parameters
GetAvailableDriverOptions protected virtual safecall (declared in TDAEDriver)
Returns a set of available driver options.
function GetAvailableDriverOptions: TDAAvailableDriverOptions
GetAvailableDriverOptionsEx protected virtual safecall (declared in TDAEDriver)
Returns a set of available driver options for specific provider.
function GetAvailableDriverOptionsEx(AuxDriver: string): TDAAvailableDriverOptions
Parameters:
- AuxDriver: Aux driver name in question
GetConnectionClass protected virtual abstract (declared in TDAEDriver)
Сreates a concrete implementation of the TDAEConnection.
function GetConnectionClass: TDAEConnectionClass
GetDefaultConnectionType protected override safecall
Returns the Oracle string.
function GetDefaultConnectionType(const AuxDriver: string): string
Parameters:
- AuxDriver: ignored
GetDefaultCustomParameters protected virtual safecall (declared in TDAEDriver)
Returns custom driver-dependent parameters.
function GetDefaultCustomParameters: string
GetDescription protected virtual safecall abstract (declared in TDAEDriver)
Returns the driver's description.
function GetDescription: string
GetDriverHelp protected (declared in TDAEDriver)
Returns the help of the driver by returning the loaded 'DRIVER_HELP' from the resources HTML text.
function GetDriverHelp(aType: TDADriverHelpType): string
Parameters:
- aType: See TDADriverHelpType
GetDriverID protected virtual safecall abstract (declared in TDAEDriver)
Returns driver ID
function GetDriverID: string
GetMajVersion protected virtual safecall (declared in TDAEDriver)
Returns the driver's major version.
function GetMajVersion: Byte
GetMinVersion protected virtual safecall (declared in TDAEDriver)
Returns the driver's minor version.
function GetMinVersion: Byte
Initialize protected virtual safecall (declared in TDAEDriver)
Initializes the driver
procedure Initialize
MajVersion protected (declared in TDAEDriver)
Driver's major version.
property MajVersion: Byte read
MinVersion protected (declared in TDAEDriver)
Driver's minor version.
property MinVersion: Byte read
NewConnection (IDAConnectionManager, TDAConnection): IDAConnection protected overload safecall (declared in TDAEDriver)
Creates a new connection with help of the GetConnectionClass class, initializing its corresponding properties with the given aConnectionManager and aConnectionDefinition, and finally calling CustomizeConnectionObject for a created connection.
Returns a created connection.
function NewConnection(const aConnectionManager: IDAConnectionManager; aConnectionDefinition: TDAConnection): IDAConnection
Parameters:
- aConnectionManager: Connection manager
- aConnectionDefinition: Connection parameters
NewConnection (string, string): IDAConnection protected overload safecall (declared in TDAEDriver)
Creates a new aName connection with help of the GetConnectionClass and
sets its ConnectionType up to aConnectionType.
Returns a created connection.
function NewConnection(const aName: string; const aConnectionType: string): IDAConnection
Parameters:
- aName: Connection name
- aConnectionType: Connection type
SetTraceOptions protected safecall (declared in TDAEDriver)
Sets trace options.
procedure SetTraceOptions(TraceActive: Boolean; TraceFlags: TDATraceOptions; Callback: TDALogTraceEvent)
Parameters:
- TraceActive: Current mode
- TraceFlags: Set of TDATraceOption
- Callback: Method to call in various OnTraceEvent event handlers
Description protected (declared in TDAEDriver)
Driver's description.
property Description: string read
DriverID protected (declared in TDAEDriver)
Returns the driver's ID.
property DriverID: string read
MajVersion protected (declared in TDAEDriver)
Driver's major version.
property MajVersion: Byte read
MinVersion protected (declared in TDAEDriver)
Driver's minor version.
property MinVersion: Byte read
CustomizeConnectionObject protected dynamic (declared in TDAEDriver)
Provides a way to perform additional procedures after acquiring a connection with the NewConnection methods.
procedure CustomizeConnectionObject(aConnection: TDAEConnection)
Parameters:
- aConnection: Reference to the used connection
DoSetTraceOptions protected virtual (declared in TDAEDriver)
Executes actions specific to the implementation to perform event monitoring.
procedure DoSetTraceOptions(TraceActive: Boolean; TraceFlags: TDATraceOptions; Callback: TDALogTraceEvent)
Parameters:
- TraceActive: Current mode
- TraceFlags: Set of TDATraceOption
- Callback: Method to call in various OnTraceEvent event handlers
Finalize protected virtual safecall (declared in TDAEDriver)
Initializes the driver
procedure Finalize
GetAuxDrivers protected virtual safecall (declared in TDAEDriver)
Returns a list of available auxiliary drivers.
procedure GetAuxDrivers(out List: IROStrings)
Parameters:
- List: List of auxiliary driver names
GetAuxParams protected virtual safecall (declared in TDAEDriver)
Returns a list of custom parameters for the specified driver.
procedure GetAuxParams(const AuxDriver: string; out List: IROStrings)
Parameters:
- AuxDriver: Aux driver name in question
- List: List of auxiliary parameters
GetAvailableDriverOptions protected virtual safecall (declared in TDAEDriver)
Returns a set of available driver options.
function GetAvailableDriverOptions: TDAAvailableDriverOptions
GetAvailableDriverOptionsEx protected virtual safecall (declared in TDAEDriver)
Returns a set of available driver options for specific provider.
function GetAvailableDriverOptionsEx(AuxDriver: string): TDAAvailableDriverOptions
Parameters:
- AuxDriver: Aux driver name in question
GetConnectionClass protected virtual abstract (declared in TDAEDriver)
Сreates a concrete implementation of the TDAEConnection.
function GetConnectionClass: TDAEConnectionClass
GetDefaultConnectionType protected override safecall
Returns the Oracle string.
function GetDefaultConnectionType(const AuxDriver: string): string
Parameters:
- AuxDriver: ignored
GetDefaultCustomParameters protected virtual safecall (declared in TDAEDriver)
Returns custom driver-dependent parameters.
function GetDefaultCustomParameters: string
GetDescription protected virtual safecall abstract (declared in TDAEDriver)
Returns the driver's description.
function GetDescription: string
GetDriverHelp protected (declared in TDAEDriver)
Returns the help of the driver by returning the loaded 'DRIVER_HELP' from the resources HTML text.
function GetDriverHelp(aType: TDADriverHelpType): string
Parameters:
- aType: See TDADriverHelpType
GetDriverID protected virtual safecall abstract (declared in TDAEDriver)
Returns driver ID
function GetDriverID: string
GetMajVersion protected virtual safecall (declared in TDAEDriver)
Returns the driver's major version.
function GetMajVersion: Byte
GetMinVersion protected virtual safecall (declared in TDAEDriver)
Returns the driver's minor version.
function GetMinVersion: Byte
Initialize protected virtual safecall (declared in TDAEDriver)
Initializes the driver
procedure Initialize
NewConnection (IDAConnectionManager, TDAConnection): IDAConnection protected overload safecall (declared in TDAEDriver)
Creates a new connection with help of the GetConnectionClass class, initializing its corresponding properties with the given aConnectionManager and aConnectionDefinition, and finally calling CustomizeConnectionObject for a created connection.
Returns a created connection.
function NewConnection(const aConnectionManager: IDAConnectionManager; aConnectionDefinition: TDAConnection): IDAConnection
Parameters:
- aConnectionManager: Connection manager
- aConnectionDefinition: Connection parameters
NewConnection (string, string): IDAConnection protected overload safecall (declared in TDAEDriver)
Creates a new aName connection with help of the GetConnectionClass and
sets its ConnectionType up to aConnectionType.
Returns a created connection.
function NewConnection(const aName: string; const aConnectionType: string): IDAConnection
Parameters:
- aName: Connection name
- aConnectionType: Connection type
SetTraceOptions protected safecall (declared in TDAEDriver)
Sets trace options.
procedure SetTraceOptions(TraceActive: Boolean; TraceFlags: TDATraceOptions; Callback: TDALogTraceEvent)
Parameters:
- TraceActive: Current mode
- TraceFlags: Set of TDATraceOption
- Callback: Method to call in various OnTraceEvent event handlers
- Direct Oracle Access (DOA)
- How to create a Data Abstract Driver (Delphi)