eai_registry

The eai_registry table stores information about each iProcess server plug-in that is installed on this iProcess Engine. The background process reads this table to determine which iProcess server plug-ins to start.

Structure

The eai_registry table has the following structure:

TABLE eai_registry(
	eai_type		VARCHAR(20)	NOT NULL,
	logical_machine_id	INTEGER		NOT NULL,
	release_version		VARCHAR(32)	NOT NULL,
	plugin_library		VARCHAR(256)	NOT NULL,
	init_params		VARCHAR(1024)	)

Column	Description
eai_type	Short name for the EAI Step type that this iProcess server plug-in supports. For example, one of the following: • EAIDB  EAI Database • EAISCR  EAI Script • EAIWEBSERVICES  EAI Web Services
logical_machine_id	ID of the computer that this iProcess server plug-in is installed on, as defined in the node_cluster table. Note: If a node cluster architecture is in use, the iProcess server plug-in must be installed on each server in the cluster that is configured to run a background process.
release_version	Version number of this iProcess server plug-in (for example, i10.0-u(4.0)).
plugin_library	Pathname (on this logical_machine_id) where this EAI server plug-in is installed.
init_params	Startup parameters used by this iProcess server plug-in.

Primary Key

The following primary key is defined for this table.

Key Name	Column(s)
pk_eai_registry	eai_type logical_machine_id

Foreign Keys

The following foreign key is defined for this table.

Key Name	Column(s)	Referenced in Table...
fk_eai_registry1 This key enforces the DELETE CASCADE referential action.	logical_machine_id	node_cluster

Indexes

The following index is defined for this table.

Index Name	Column(s) Indexed
idx_eairegistry_fk	logical_machine_id

Table Activity

The eai_registry table contains one row for each iProcess server plug-in that is installed on each server in this iProcess Engine node.

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

A row is...	When...
added	an iProcess server plug-in is installed.
updated	an iProcess server plug-in is upgraded or amended.
deleted	an iProcess server plug-in is deleted.