Probably you want to change clusterCollectionName to tridentCollectionName here:
> tridentCandidates = event.get(ReconstructedParticle.class, clusterCollectionName);
(fyi, the filename you mentioned looks like a pass2 file).
On Oct 25, 2015, at 14:16, Kyle McCarty <[log in to unmask]> wrote:
> Hello hps-software,
>
> I am trying to look at V0 candidate particles.According to confluence (https://confluence.slac.stanford.edu/display/hpsg/MC+Recon+Collection+Definitions), the collection for (say, unconstrained) V0 candidates is "UnconstrainedV0Candidates" and should be of type "ReconstructedParticle."
>
> When running on this collection, however, I get ClassCastException errors. I tried this code to check the object type of the collection:
>
> String tridentCollectionName = "UnconstrainedV0Candidates";
> List<ReconstructedParticle> tridentCandidates = null;
> if(event.hasCollection(ReconstructedParticle.class, tridentCollectionName)) {
> tridentCandidates = event.get(ReconstructedParticle.class, clusterCollectionName);
> } else {
> tridentCandidates = new ArrayList<ReconstructedParticle>(0);
> }
>
> for(Object o : tridentCandidates) {
> System.out.println(o.getClass().getName());
> }
>
> It outputs "org.lcsim.lcio.SIOCluster" as the object type of V0 candidate collection. Can anyone assist me with figuring out what is wrong here? Am I accessing something incorrectly? I am using the file "hps_005772.10_recon_R340.slcio" (should be from pass-3) if that helps.
>
> Thanks,
>
> Kyle
>
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