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java.lang.Object com.atlassian.confluence.upgrade.upgradetask.HiLoIdRepairUpgradeTask
public class HiLoIdRepairUpgradeTask
POSITION is a key word as far as HSQLDB 1.8 is concerned. Hence we need to rename it. however not many databases support a SQL rename command, so our first attempt involved trying to drop the column and add a new one it turns out that we cannot remove the POSITION column because it is part of composite primary key (and with values in the table, dropping the column will cause duplicate entries in the remaining PK column) further, hibernate's schemaUpdate autocreates the ANCESTORPOSITION column as part of the upgrade but fails to create it as a primary key -- not sure know why. instead of fighting with database dialects and integrity errors, we concluded its best and easier to just rename the table and allow schemaUpdate to create a new one this upgrade task handles the removal of the old table and the triggers off a populating of the new.
Constructor Summary | |
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HiLoIdRepairUpgradeTask(com.atlassian.event.EventManager eventManager)
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Method Summary | |
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void |
doNonDatabaseUpgrade()
Perform any non-database related parts of the upgrade task. |
void |
doUpgrade()
Perform the upgrade. |
java.lang.String |
getBuildNumber()
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java.util.Collection |
getErrors()
Return any errors that occur. |
java.lang.String |
getShortDescription()
A short (<50 chars) description of the upgrade action |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public HiLoIdRepairUpgradeTask(com.atlassian.event.EventManager eventManager)
Method Detail |
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public java.lang.String getBuildNumber()
getBuildNumber
in interface UpgradeTask
public java.lang.String getShortDescription()
UpgradeTask
getShortDescription
in interface UpgradeTask
public void doUpgrade() throws java.lang.Exception
UpgradeTask
doUpgrade
in interface UpgradeTask
java.lang.Exception
public java.util.Collection getErrors()
UpgradeTask
getErrors
in interface UpgradeTask
public void doNonDatabaseUpgrade()
DatabaseUpgradeTask
UpgradeTask.doUpgrade()
. This allows the upgrade task to perform any local non-db cleanup
that might be involved in the upgrade.
doNonDatabaseUpgrade
in interface DatabaseUpgradeTask
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