AggregationMap.h

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/*****************************************************************************
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 *  Copyright 2018 Rice University                                           *
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 *  Licensed under the Apache License, Version 2.0 (the "License");          *
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#ifndef AGGREGATION_MAP_H
#define AGGREGATION_MAP_H

// PRELOAD %AggregationMap<Nothing>%


#include "PDBMap.h"

namespace pdb {

// This is the AggregationMap type that serves as a map for aggregation

template <class KeyType, class ValueType = Nothing>
class AggregationMap : public Map<KeyType, ValueType> {

private:
    // this member will only be used in PDB aggregation
    unsigned int hashPartitionId;


public:
    ENABLE_DEEP_COPY


    // this constructor pre-allocates initSize slots... initSize must be a power of two
    AggregationMap(uint32_t initSize);

    // this constructor creates a map with a single slot
    AggregationMap();

    // destructor
    ~AggregationMap();

    // enhance the performance of indexing a hash partition.

    unsigned int getHashPartitionId();
    void setHashPartitionId(unsigned int id);
};
}

#include "AggregationMap.cc"

#endif