com.atlassian.confluence.upgrade.upgradetask
Class LikesDanglingFKCleanupUpgradeTask
java.lang.Object
com.atlassian.confluence.upgrade.AbstractUpgradeTask
com.atlassian.confluence.upgrade.upgradetask.LikesDanglingFKCleanupUpgradeTask
- All Implemented Interfaces:
- BackupSupport, DatabaseUpgradeTask, UpgradeTask, UpgradeTaskInfo, org.springframework.beans.factory.BeanNameAware
public class LikesDanglingFKCleanupUpgradeTask
- extends AbstractUpgradeTask
- implements DatabaseUpgradeTask
Previously likes on comments were not deleted when the parent page was removed.
This left dangling foreign keys from the likes table to the content table, see CONFDEV-12298
It runs pre hibernate schema upgrade as we have remapped the contentid property, and so this task needs
to remove any dangling foreign keys before hibernate introduces the foreign key constraint.
It doesn't run in the import tasks as the ReflectiveObjectPersister handles the upgrade of the property in
its upgradeProperty method, and doesn't import if the contentEntityObject is missing.
Fields inherited from interface com.atlassian.confluence.upgrade.UpgradeTask |
log |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
LikesDanglingFKCleanupUpgradeTask
public LikesDanglingFKCleanupUpgradeTask(net.sf.hibernate.SessionFactory sessionFactory)
doUpgrade
public void doUpgrade()
throws java.lang.Exception
- Description copied from interface:
UpgradeTask
- Perform the upgrade.
- Specified by:
doUpgrade
in interface UpgradeTask
- Throws:
java.lang.Exception
getBuildNumber
public java.lang.String getBuildNumber()
- Specified by:
getBuildNumber
in interface UpgradeTaskInfo
- Overrides:
getBuildNumber
in class AbstractUpgradeTask
- Returns:
- The build number that this upgrade is applicable to
getShortDescription
public java.lang.String getShortDescription()
- Description copied from interface:
UpgradeTaskInfo
- A short (<50 chars) description of the upgrade action
- Specified by:
getShortDescription
in interface UpgradeTaskInfo
- Overrides:
getShortDescription
in class AbstractUpgradeTask
runOnSpaceImport
public boolean runOnSpaceImport()
- Description copied from interface:
BackupSupport
- Returns true if an older Space can't be imported in a new instance without running this task. For example:
- A task updating macro names in the BodyContent table would be blocking.
- Tasks which updates data related to the space would be blocking.
- A task upgrading the user table wouldn't be blocking.
- Adding a mandatory column on space-related content breaks space import
Note that tasks don't run on space import yet, so we just reject the import in this case.
- Specified by:
runOnSpaceImport
in interface BackupSupport
breaksBackwardCompatibility
public boolean breaksBackwardCompatibility()
- Description copied from interface:
BackupSupport
- Returns true if a new export can't be imported in an older instance.
Breaking compatibility means a snapshot of the new version will not work
at all with the previous version. For example:
- A destructive operation (Some data is replaced by another) breaks backwards compatibility
- Adding a optional column does NOT break backwards compatibility
- Data is copied to another column doesn't breaks backwards compatibility
- A build number incrementation doesn't breaks backwards compatibility
The best way to test is whether a newer export can be imported (with fully working features)
in an older instance.
- Specified by:
breaksBackwardCompatibility
in interface BackupSupport
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