package edu.uci.ics.hivesterix.runtime.factory.hashfunction; | |
import edu.uci.ics.hivesterix.serde.lazy.LazyUtils; | |
import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction; | |
import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory; | |
public class HiveDoubleBinaryHashFunctionFactory implements IBinaryHashFunctionFactory { | |
private static final long serialVersionUID = 1L; | |
public static HiveDoubleBinaryHashFunctionFactory INSTANCE = new HiveDoubleBinaryHashFunctionFactory(); | |
private HiveDoubleBinaryHashFunctionFactory() { | |
} | |
@Override | |
public IBinaryHashFunction createBinaryHashFunction() { | |
// TODO Auto-generated method stub | |
return new IBinaryHashFunction() { | |
private Double value; | |
@Override | |
public int hash(byte[] bytes, int offset, int length) { | |
value = Double.longBitsToDouble(LazyUtils.byteArrayToLong(bytes, offset)); | |
return value.hashCode(); | |
} | |
}; | |
} | |
} |