Thanks!

Dave

On Mon, Dec 13, 2010 at 5:32 PM, Thomas Hallgren <[email protected]> wrote:

>  Hi Dave,
>
> Just to clarify, the code you use for creating the newIU below, do you use
> that for creating the IU's that you pass as roots to the traverse query? If
> that's the case, then I understand why you have a problem. The IU doesn't
> have any requirements so naturally, the query won't find any matches.
>
> You need to query for the root iu's first, using a standard IU query (with
> id and version) and then use the result from that query as root IU's into
> the traverse query. This can be done using two queries but you can also do
> it one single query also, like so:
>
> select(iu | $0.exists(v | v.id == iu.id && v.version ==
> iu.version)).traverse(parent | ...
>
> You then pass a collection of IVersionedID instances as $0. There is an
> implementation class called VersionedID that takes a constructor with id and
> version that you can use.
>
> HTH,
>
> Thomas Hallgren
>
>
>
> On 2010-12-14 00:20, David Orme wrote:
>
>
> Here's the code I use to create an IU:
>
> private IInstallableUnit newIU(String id, String versionString) {
>     InstallableUnitDescription iuDesc = new
> MetadataFactory.InstallableUnitDescription();
>     iuDesc.setId(id);
>     Version version = Version.create(versionString);
>     iuDesc.setVersion(version);
>     ArrayList<IProvidedCapability> capabilities = new
> ArrayList<IProvidedCapability>();
>     capabilities.add(MetadataFactory.createProvidedCapability(id, id,
> version));
>     iuDesc.addProvidedCapabilities(capabilities);
>     return MetadataFactory.createInstallableUnit(iuDesc);
> }
>
>
> Thanks again,
>
> Dave
>
>
>
>
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