org.apache.derby.impl.sql.execute

Class RowTriggerExecutor

java.lang.Object

org.apache.derby.impl.sql.execute.GenericTriggerExecutor

org.apache.derby.impl.sql.execute.RowTriggerExecutor

public class RowTriggerExecutor
extends GenericTriggerExecutor

A row trigger executor is an object that executes a row trigger. It is instantiated at execution time. There is one per row trigger.

Field Summary

Fields inherited from class org.apache.derby.impl.sql.execute.GenericTriggerExecutor

activation, lcc, tec, triggerd

Constructor Summary

Constructors

Constructor and Description
RowTriggerExecutor(InternalTriggerExecutionContext tec, TriggerDescriptor triggerd, Activation activation, LanguageConnectionContext lcc) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
(package private) void	fireTrigger(TriggerEvent event, CursorResultSet brs, CursorResultSet ars, int[] colsReadFromTable) Fire the trigger based on the event.

Methods inherited from class org.apache.derby.impl.sql.execute.GenericTriggerExecutor

clearSPS, executeSPS, getAction, getWhenClause

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RowTriggerExecutor

RowTriggerExecutor(InternalTriggerExecutionContext tec,
                  TriggerDescriptor triggerd,
                  Activation activation,
                  LanguageConnectionContext lcc)

Constructor

Parameters:

tec - the execution context

triggerd - the trigger descriptor

activation - the activation

lcc - the lcc

Method Detail

fireTrigger

void fireTrigger(TriggerEvent event,
               CursorResultSet brs,
               CursorResultSet ars,
               int[] colsReadFromTable)
           throws StandardException

Fire the trigger based on the event.

Specified by:

fireTrigger in class GenericTriggerExecutor

Parameters:

event - the trigger event

brs - the before result set

ars - the after result set

colsReadFromTable - columns required from the trigger table by the triggering sql

Throws:

StandardExcetion - on error or general trigger exception

StandardException - on error or user exception from trigger action