Created
February 3, 2012 21:52
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package com.hipmunk.pig.udfs; | |
import org.apache.pig.EvalFunc; | |
import org.apache.pig.backend.executionengine.ExecException; | |
import org.apache.pig.data.BagFactory; | |
import org.apache.pig.data.DataBag; | |
import org.apache.pig.data.DefaultBagFactory; | |
import org.apache.pig.data.Tuple; | |
import org.apache.pig.data.TupleFactory; | |
public class TupleToBag extends EvalFunc<DataBag> { | |
private static final BagFactory bagFactory_ = DefaultBagFactory.getInstance(); | |
private static final TupleFactory tupleFactory_ = TupleFactory.getInstance(); | |
public DataBag exec(Tuple args) throws ExecException { | |
assert args.size() == 1; | |
DataBag db = bagFactory_.newDefaultBag(); | |
Tuple t = (Tuple)args.get(0); | |
for(Object i: t.getAll()) { | |
db.add(tupleFactory_.newTuple(i)); | |
} | |
return db; | |
} | |
} |
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