Iterate over all indexes of a class : CastError: OSBTreeMapEntry to OrientVertex/Others

[Shishya]

Hi,

I am trying POJO for iterating over an index of class. Purpose is to process all docs in classes.

But I get cast exception from OSBTreeMapEntryIterator. What would be the right way to get Document from each K,V of iterator?

Regards

OrientGraphFactory factory = new OrientGraphFactory("plocal:/dat/odb/orientdb-community-1.7-rc2-SNAPSHOT/databases/"+dbn,"admin","admin").setupPool(1, 10);
        factory.getTx().getRawGraph().declareIntent(new OIntentMassiveInsert());
        OrientGraph graph = factory.getTx();
OIndex<?> ptidIdx = graph.getRawGraph().getMetadata().getIndexManager().getIndex("idxptid");

Iterator<Map.Entry<ORID,ODocument>> iter = ptidIdx.iterator();

while (iter.hasNext()) {

Map.Entry<ORID,ODocument> tm = iter.next();
                    System.out.println("\n"+tm+"");
}

[Andrey Lomakin]

HI,

What exception did you get ?

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Best regards,
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[prabhat]

That was not right syntax but interim.

My error is 

--------------------

position: java.lang.ClassCastException: com.orientechnologies.orient.core.index.sbtree.OSBTreeMapEntryIterator$1$1 cannot be cast to com.orientechnologies.orient.core.record.ORecord

---------------------------------------

with Syntax

 ORecord tm = (ORecord)iter.next();

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[Andrey Lomakin]

Sorry, but what will be if you try Map.Entry<ORID,ODocument> tm = iter.next();

[prabhat]

: error: incompatible types

            Iterator<Map.Entry<Object, ODocument>> iter = ptidIdx.iterator();

                                                                          ^

  required: Iterator<Entry<Object,ODocument>>

  found:    Iterator<Entry<Object,CAP#1>>

  where CAP#1 is a fresh type-variable:

    CAP#1 extends Object from capture of ?

1 error

[Andrey Lomakin]

I see, 

Try following:

 Iterator<Map.Entry<Object, OIdentifiable>> iter = (Iterator<Map.Entry<Object, OIdentifiable>>)ptidIdx.iterator();

[prabhat]

Still the same error

            Iterator<Map.Entry<Object, OIdentifiable>> iter = (Iterator<Map.Entry<Object, OIdentifiable>>)ptidIdx.iterator();

                                                                                                                           ^

  required: Iterator<Entry<Object,OIdentifiable>>

  found:    Iterator<Entry<Object,CAP#1>>

  where CAP#1 is a fresh type-variable:

    CAP#1 extends Object from capture of ?

2 errors

[prabhat]

Hi Andrey,

Any other method to iterate all records of class(5 million+). So I cant load all in memory.

Regards