Sounds plausible. The we should do it this way but check that the
iterator is from the the basegraph at position 0.

Cheers,
reto

On Thu, Jun 3, 2010 at 5:09 PM, Manuel Innerhofer
<[email protected]> wrote:
> As far as I remember the bug arises when using jena tdb. If removing and
> the currentBaseIter is the one at position 0, then a
> ConcurrentModificationException is thrown, because the remove()-method
> of the TripleCollection is used instead of the remove()-method of the
> Iterator.
>
> On Thu, 2010-06-03 at 15:05 +0200, Reto Bachmann-Gmuer wrote:
>> Sorry for opposing so lately, but:
>>
>> -  I don't see what bug this patch is supposed to fix
>> -  It seems that with this would also remove trples from members other
>> than the one at position 0. The class is very pporly documented, but
>> its quite clear that there is only one graph that can be modified in
>> the union, the one at position 0
>> -  having lastRetirned as instance field of the iterator is pointless
>> after this patch
>>
>> reto
>>
>> On Mon, May 17, 2010 at 1:29 PM,  <[email protected]> wrote:
>> > Author: mir
>> > Date: Mon May 17 11:29:21 2010
>> > New Revision: 945091
>> >
>> > URL: http://svn.apache.org/viewvc?rev=945091&view=rev
>> > Log:
>> > bug fixed (by andre)  in UnionGraph.remove()
>> >
>> > Modified:
>> >    
>> > incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.rdf.utils/src/main/java/org/apache/clerezza/rdf/utils/UnionMGraph.java
>> >
>> > Modified: 
>> > incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.rdf.utils/src/main/java/org/apache/clerezza/rdf/utils/UnionMGraph.java
>> > URL: 
>> > http://svn.apache.org/viewvc/incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.rdf.utils/src/main/java/org/apache/clerezza/rdf/utils/UnionMGraph.java?rev=945091&r1=945090&r2=945091&view=diff
>> > ==============================================================================
>> > --- 
>> > incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.rdf.utils/src/main/java/org/apache/clerezza/rdf/utils/UnionMGraph.java
>> >  (original)
>> > +++ 
>> > incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.rdf.utils/src/main/java/org/apache/clerezza/rdf/utils/UnionMGraph.java
>> >  Mon May 17 11:29:21 2010
>> > @@ -100,7 +100,7 @@ public class UnionMGraph extends Abstrac
>> >                                if (lastReturned == null) {
>> >                                        throw new IllegalStateException();
>> >                                }
>> > -                               UnionMGraph.this.remove(lastReturned);
>> > +                               currentBaseIter.remove();
>> >                                lastReturned = null;
>> >                        }
>> >                };
>> >
>> >
>> >
>
>
>

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