Class tdbevent

Unit

msedbevents

Declaration

type tdbevent = class(tmsecomponent)

Description

Listens for a server-side notification on the connected database: Postgres NOTIFY or Firebird POST_EVENT, typically raised by a trigger or stored procedure. Set eventname and listen to True to start listening.

Hierarchy

• TObject
• tpersistent
• tcomponent
• tmsecomponent
• tdbevent

Overview

Methods

Protected	procedure doexecute(const aid: int64); virtual;
Protected	procedure checkinactive;
Protected	procedure checkactive;
Protected	procedure loaded; override;
Protected	procedure notification(acomponent: tcomponent; operation: toperation); override;
Public	destructor destroy; override;
Public	procedure fire;

Properties

Published	property database: tmdatabase read fdatabase write setdatabase;
Published	property eventname: string read feventname write seteventname;
Published	property listen: boolean read flisten write setlisten default false;
Published	property onexecute: dbeventty read fonexecute write fonexecute;

Description

Methods

Protected	procedure doexecute(const aid: int64); virtual;
This item has no description.

Protected	procedure checkinactive;
This item has no description.

Protected	procedure checkactive;
This item has no description.

Protected	procedure loaded; override;
This item has no description.

Protected	procedure notification(acomponent: tcomponent; operation: toperation); override;
This item has no description.

Public	destructor destroy; override;
This item has no description.

Public	procedure fire;
This item has no description.

Properties

Published	property database: tmdatabase read fdatabase write setdatabase;
This item has no description.

Published	property eventname: string read feventname write seteventname;
This item has no description.

Published	property listen: boolean read flisten write setlisten default false;
This item has no description.

Published	property onexecute: dbeventty read fonexecute write fonexecute;
aid is the process ID of the connection that raised the notification — compare it to the current connection's own PID to ignore notifications caused by this session's own actions.

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