sw_subscription_list

The sw_subscription_list table stores the list of event subscription records currently defined on the system. Each event subscription record defines the event that is being subscribed to and the process instance that has subscribed to it.

The sw_subscription_list table is a persistent copy of the event daemon’s in-memory subscription list. If the event daemon fails for any reason, it rebuilds its subscription list from this table when it restarts.

Structure

The sw_subscription_list table has the following structure:

TABLE sw_subscription_list ( 
event_topic_id			integer		NOT NULL,
logical_machine_id		integer		NOT NULL,
logical_process_name		varchar(10)	NOT NULL,
logical_process_instance	integer		NOT NULL,
notify_port_number		integer		NOT NULL,
machine_name			varchar(256)	NOT NULL)

Column

Description

event_topic_id

ID of the iProcess event that has been subscribed to.

logical_machine_id

ID of the server where the subscribing process is running, as defined in the node_cluster table.

logical_process_name

Logical name of the process that has subscribed to this event.

Note: See Administering iProcess Engine Server Processes in TIBCO iProcess Engine: Administrator's Guide for a list of logical process names.

logical_process_
instance

ID of the process instance that has subscribed to this event, as defined in the process_config table.

notify_port_number

Number of the RPC port that is used to notify the subscribing process when the event occurs.

machine_name

Physical name of the server where the subscribing process is running, as defined in the node_cluster table.

Primary Key

The following primary key is defined for this table.

Key Name

Column(s)

pk_sw_sub_list

event_topic_id
logical_machine_id
logical_process_name
logical_process_instance

Foreign Keys

None.

Indexes

None.

Table Activity

The sw_subscription_list table contains one row for each event subscription currently defined on the system.

Rows are added, updated and deleted in the following situations.

A row is...

When...

added

a process instance subscribes to an event.

updated

details of a subscribing process are changed.

For example, if a process in a node cluster is moved to another server.

deleted

a process instance unsubscribes from an event.