CorrectAttachmentCreatorUpgradeTask

Class Overview

In older versions of Confluence, when a new version of an attachment was created, only the last modifier field was set. That is, the author of the new version was not acknowledged in the creator field of the new attachment. The problem with this is that the last modifier field is then overloaded with too much information (both creation and last modifier). As such, if an attachment has been modified after upload, the original creator would be lost. The same problem exists for attachment creation and modification dates.

This upgrade task aims to address the problem of overloading only. It will copy across the the value of:

• the last modifier to the creator field
• the last modification date to the creation date field

There will be the odd case where if a comment was added to an attachment, the commenter, being the last modifier, will be assigned as the creator of the attachment by this upgrade task. But there is nothing we can do about this, since we have lost the creator.

Summary

[Expand] Inherited Fields
From interface com.atlassian.confluence.upgrade.UpgradeTask public static final Logger log All upgrade tasks should use this log for convenience, unless there's some overriding reason to use a different log

Public Constructors
	CorrectAttachmentCreatorUpgradeTask()

Public Methods
void	doUpgrade()
String	getBuildNumber()
String	getShortDescription() A short (
void	setSessionFactory(SessionFactory sessionFactory)

[Expand] Inherited Methods
From class com.atlassian.confluence.upgrade.AbstractUpgradeTask void addAllErrors(Collection<UpgradeError> errors) void addError(UpgradeError error) void addError(String errorMessage) String getBuildNumber() BuildNumberUpgradeConstraint getConstraint() Collection<UpgradeError> getErrors() Return any errors that occur. String getShortDescription() A short ( void setBuildNumber(String buildNumber) void validate() This is only implemented in this abstract base class for the convenience of the large number of older upgrade tasks.
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait() final void wait(long arg0, int arg1) final void wait(long arg0)
From interface com.atlassian.confluence.upgrade.UpgradeTask void doUpgrade() Perform the upgrade. String getBuildNumber() BuildNumberUpgradeConstraint getConstraint() Collection<UpgradeError> getErrors() Return any errors that occur. String getShortDescription() A short ( void validate() Validates that this upgrade task can be performed.