The Teradata PT operator interface is defined by the functions of the PX_Operator class, which are either user-provided control functions or service functions.
In the following example, functions with a prefix of “virtual” and ending with “=0” are user-provided control functions that must be overridden by each interfacing operator. All other functions are service functions that provide the operational interface to the Teradata PT infrastructure.
{
public:
virtual PXSTC_Code PX_Initiate() = 0;
virtual PXSTC_Code PX_Terminate() = 0;
virtual PXSTC_Code PX_Execute() = 0;
virtual PXSTC_Code PX_Checkpoint() = 0;
virtual PXSTC_Code PX_Restart() = 0;
virtual PXSTC_Code PX_Event() = 0;
PXSTC_Code PX_GetAttribute();
PXSTC_Code PX_PutAttribute();
PXSTC_Code PX_AllocateStorage();
PXSTC_Code PX_FreeStorage();
PXSTC_Code PX_CreateGlobalVar();
PXSTC_Code PX_DeleteGlobalVar();
PXSTC_Code PX_ReadGlobalVar();
PXSTC_Code PX_UpdateGlobalVar();
PXSTC_Code PX_SetErrorMessage();
PXSTC_Code PX_ReadCheckpointRecord();
PXSTC_Code PX_WriteCheckpointRecord();
PXSTC_Code PX_BeginTableSchemaDefinition();
PXSTC_Code PX_FinalizeTableSchemaDefinition();
PXSTC_Code PX_CreateColumnSchema();
PXSTC_Code PX_GetTableSchemaList();
PXSTC_Code PX_GetColumnSchemaList();
PXSTC_Code PX_GetColumnSchema();
PXSTC_Code PX_GetColumnValue();
PXSTC_Code PX_PutColumnValue();
PXSTC_Code PX_GetRow();
PXSTC_Code PX_PutRow();
PXSTC_Code PX_LogInit();
PXSTC_Code PX_LogWrite();
PXSTC_Code PX_LogTerminate();
PXSTC_Code PX_SetLogError();
}