MySQL :: MySQL Cluster API Developer Guide

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Abstract

This section details the public types belonging to the Event class.

Abstract

This section describes TableEvent, a type defined by the Event class.

Description. TableEvent is used to classify the types of events that may be associated with tables in the NDB API.

Enumeration values. Possible values are shown, along with descriptions, in the following table:

Value	Description
`TE_INSERT`	Insert event on a table
`TE_DELETE`	Delete event on a table
`TE_UPDATE`	Update event on a table
`TE_DROP`	Occurs when a table is dropped
`TE_ALTER`	Occurs when a table definition is changed
`TE_CREATE`	Occurs when a table is created
`TE_GCP_COMPLETE`	Occurs on the completion of a global checkpoint
`TE_CLUSTER_FAILURE`	Occurs on Cluster failures
`TE_STOP`	Occurs when an event operation is stopped
`TE_NODE_FAILURE`	Occurs when a Cluster node fails
`TE_SUBSCRIBE`	Occurs when a cluster node subscribes to an event
`TE_UNSUBSCRIBE`	Occurs when a cluster node unsubscribes from an event
`TE_ALL`	Occurs when any event occurs on a table (not relevant when a specific event is received)

Abstract

This section discusses EventDurability, a type defined by the Event class.

Description. The values of this type are used to describe an event's lifetime or persistence as well as its scope.

Enumeration values. Possible values are shown, along with descriptions, in the following table:

Value	Description
`ED_UNDEFINED`	The event is undefined or of an unsupported type.
`ED_SESSION`	This event persists only for the duration of the current session, and is available only to the current application. It is deleted after the application disconnects or following a cluster restart. Important The value `ED_SESSION` is reserved for future use and is not yet supported in any MySQL Cluster release.
`ED_TEMPORARY`	Any application may use the event, but it is deleted following a cluster restart. Important The value `ED_TEMPORARY` is reserved for future use and is not yet supported in any MySQL Cluster release.
`ED_PERMANENT`	Any application may use the event, and it persists until deleted by an application—even following a cluster. restart Important The value `ED_PERMANENT` is reserved for future use and is not yet supported in any MySQL Cluster release.

Abstract

This section discusses EventReport, a type defined by the Event class.

Description. The values of this type are used to specify reporting options for table events.

Enumeration values. Possible values are shown, along with descriptions, in the following table:

Value	Description
`ER_UPDATED`	Reporting of update events
`ER_ALL`	Reporting of all events, except for those not resulting in any updates to the inline parts of `BLOB` columns
`ER_SUBSCRIBE`	Reporting of subscription events
`ER_DDL`	Reporting of DDL events (added in MySQL Cluster NDB 6.3.34, 7.0.15, and 7.1.4; see Section 2.3.6.2.18, “`Event::setReport()`”, for more information)