asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java

package edu.uci.ics.asterix.runtime.aggregates.serializable.std;

import edu.uci.ics.asterix.common.functions.FunctionConstants;
import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
import edu.uci.ics.asterix.runtime.aggregates.base.AbstractSerializableAggregateFunctionDynamicDescriptor;
import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunction;
import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;

public class SerializableSumAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {

    private static final long serialVersionUID = 1L;
    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "sum-serial", 1);
    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
        public IFunctionDescriptor createFunctionDescriptor() {
            return new SerializableSumAggregateDescriptor();
        }
    };

    @Override
    public FunctionIdentifier getIdentifier() {
        return FID;
    }

    @Override
    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
            throws AlgebricksException {
        return new ICopySerializableAggregateFunctionFactory() {
            private static final long serialVersionUID = 1L;           

            @Override
            public ICopySerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
                return new SerializableSumAggregateFunction(args, false);
            }
        };
    }
}