[rules-users] OptaPlanner: score corruption when using insertLogical with custom objects

[pvandenbrink]

ge0ffrey wrote
> Turns out this is a user problem in the equals and hashcode of 
> FamilyStart, not a bug in Drools or OptaPlanner :)
> 
>      @Override
>      public boolean equals(Object other)
>      {
>          if ((this == other))
>              return true;
>          if (!(other instanceof FamilyStart))
>              return false;
>          FamilyStart castOther = (FamilyStart) other;
>          return new EqualsBuilder()
> .append(this.getTimeslot(), castOther.getTimeslot()) // <== must be Family
> .append(this.getTimeslot(), castOther.getTimeslot())
> .isEquals();
>      }
> 
>      @Override
>      public int hashCode()
>      {
>          return new HashCodeBuilder()
> .append(getTimeslot()) // <== must be Family
> .append(getTimeslot())
> .toHashCode();
>      }

Thanks for looking into it, and you're right. Looks like I made an error in
the reproducer project, sorry... The original code didn't have this
equals/hashcode problem. After fixing this in the reproducer, the example
schedule works fine though, so I'll have to have another look to see if I
can get it to reproduce again with another example dataset.





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