Provide [XxxUpgrade] attributes in addition to upgrade hints API

[GoogleCodeExporter]

Currently we have the following attributes and their properties 
related to upgrade:
- [Recycled]
- [Field(bool NullableOnUpgrade)]
- [Field(object DefaultValue)]

Also, there are rename

Obviously, that's bad that upgrade related stuff isn't separated. So I suggest 
to add a set of [XxxUpgrade] attributes:

1. [TypeUpgrade(
     string OldName, // RenameTypeHint
     string[] RemovedFields, // RemoveFieldHint
     bool RemoveAfterUpgrade, // [Recycled], = UpgradeTypeHint (new)
     type MergeIntoAfterUpgrade)] // MergeTypeHint (new)

2. [FieldUpgrade(
     string OldName, // RenameFieldHint, CopyFieldHint
     string OldType, // RenameFieldHint, CopyFieldHint
     bool Copy, // RenameFieldHint or CopyFieldHint
     bool ChangeType, ChangeFieldTypeHint
     bool RemoveAfterUpgrade, // [Recycled], = UpgradeFieldHint (new)
     bool NullableOnUpgrade, // UpgradeFieldHint (new)
     bool NoForeignKeyOnUpgrade, // UpgradeFieldHint (new)
     object DefaultValue)] // UpgradeFieldHint (new)

2. [IndexUpgrade(
     string Name, // We must reference the index
     bool RemoveAfterUpgrade, // UpgradeIndexHint (new)
     bool RemoveOnUpgrade)], // UpgradeIndexHint (new)

Pros:
- This stuff will allow developers to use attributes instead of upgrade hints
- Some new features are integrated pretty well here.

Cons:
- None. Upgrade hints will still be available ;)

Original issue reported on code.google.com by alex.yakunin on 25 Nov 2010 at 9:29

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Finally we decided to use fluent API for any upgrade-related stuff.

See issue 857.

Original comment by alex.yakunin on 27 Nov 2010 at 1:05

• Changed state: WontFix