net.sf.hajdbc.TriggerSupport Maven / Gradle / Ivy
/*
* HA-JDBC: High-Availability JDBC
* Copyright (C) 2012 Paul Ferraro
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see .
*/
package net.sf.hajdbc;
/**
* @author Paul Ferraro
*/
public interface TriggerSupport
{
enum TriggerEventEnum implements TriggerEvent
{
INSERT(TriggerTimeEnum.AFTER, true), UPDATE(TriggerTimeEnum.AFTER, false), DELETE(TriggerTimeEnum.BEFORE, null);
private final TriggerTime time;
private final Boolean value;
private TriggerEventEnum(TriggerTime time, Boolean value)
{
this.time = time;
this.value = value;
}
@Override
public TriggerTime getTime()
{
return this.time;
}
@Override
public Boolean getValue()
{
return this.value;
}
static TriggerEvent valueOf(Boolean value)
{
for (TriggerEventEnum event: TriggerEventEnum.values())
{
if (((value != null) && (event.value != null)) ? value.equals(event.value) : (value == event.value))
{
return event;
}
}
throw new IllegalArgumentException();
}
}
enum TriggerTimeEnum implements TriggerTime
{
BEFORE("OLD"), AFTER("NEW");
private final String alias;
private TriggerTimeEnum(String alias)
{
this.alias = alias;
}
@Override
public String getAlias()
{
return this.alias;
}
}
String getTriggerRowAlias(TriggerTime time);
String getCreateTriggerSQL(String name, TableProperties table, TriggerEvent event, String action);
String getDropTriggerSQL(String name, TableProperties table);
}