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-rw-r--r--shell/Evolution-Component.idl11
1 files changed, 9 insertions, 2 deletions
diff --git a/shell/Evolution-Component.idl b/shell/Evolution-Component.idl
index 69893387fc..f200680633 100644
--- a/shell/Evolution-Component.idl
+++ b/shell/Evolution-Component.idl
@@ -33,11 +33,18 @@ module Evolution {
interface Component : Bonobo::Unknown {
exception Failed {};
exception UnknownType {};
+ /* We don't know about the old version we're upgrading from */
+ exception UnsupportedVersion {};
+ /* We encountered a non-recoverable, fatal error, explain why */
+ exception UpgradeFailed {
+ string what;
+ string why;
+ };
/*** Upgrade path. ***/
- boolean upgradeFromVersion (in short major, in short minor, in short revision);
-
+ void upgradeFromVersion (in short major, in short minor, in short revision)
+ raises (UnsupportedVersion, UpgradeFailed);
/*** Basic functionality. ***/