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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "singleenumattribute.h"
#include "numericbase.h"
#include "numeric_range_matcher.h"
#include "search_context.h"
#include <map>
namespace search {
/**
* Implementation of single value numeric enum attribute that uses an underlying enum store
* to store unique numeric values.
*
* B: EnumAttribute<NumericBaseClass>
*/
template <typename B>
class SingleValueNumericEnumAttribute : public SingleValueEnumAttribute<B> {
protected:
using T = typename B::BaseClass::BaseType;
using Change = typename B::BaseClass::Change;
using DocId = typename B::BaseClass::DocId;
using EnumHandle = typename B::BaseClass::EnumHandle;
using EnumIndex = typename SingleValueEnumAttributeBase::EnumIndex;
using EnumStore = typename SingleValueEnumAttribute<B>::EnumStore;
using EnumStoreBatchUpdater = typename EnumStore::BatchUpdater;
using EnumVector = IEnumStore::EnumVector;
using LoadedNumericValueT = typename B::BaseClass::LoadedNumericValueT;
using LoadedVector = typename B::BaseClass::LoadedVector;
using QueryTermSimpleUP = AttributeVector::QueryTermSimpleUP;
using Weighted = typename B::BaseClass::Weighted;
using WeightedFloat = typename B::BaseClass::WeightedFloat;
using WeightedInt = typename B::BaseClass::WeightedInt;
using generation_t = typename B::BaseClass::generation_t;
using largeint_t = typename B::BaseClass::largeint_t;
private:
// used to make sure several arithmetic operations on the same document in a single commit works
std::map<DocId, T> _currDocValues;
protected:
// from SingleValueEnumAttribute
void considerUpdateAttributeChange(DocId doc, const Change & c) override;
void considerArithmeticAttributeChange(const Change & c, EnumStoreBatchUpdater & inserter) override;
void applyArithmeticValueChange(const Change& c, EnumStoreBatchUpdater& updater) override;
public:
SingleValueNumericEnumAttribute(const vespalib::string & baseFileName,
const AttributeVector::Config & c =
AttributeVector::Config(AttributeVector::BasicType::fromType(T()),
attribute::CollectionType::SINGLE));
~SingleValueNumericEnumAttribute();
void onCommit() override;
bool onLoad(vespalib::Executor *executor) override;
bool onLoadEnumerated(ReaderBase &attrReader);
std::unique_ptr<attribute::SearchContext>
getSearch(QueryTermSimpleUP term, const attribute::SearchContextParams & params) const override;
//-------------------------------------------------------------------------
// Attribute read API
//-------------------------------------------------------------------------
T get(DocId doc) const override {
return this->_enumStore.get_value(this->acquire_enum_entry_ref(doc));
}
largeint_t getInt(DocId doc) const override {
return static_cast<largeint_t>(get(doc));
}
double getFloat(DocId doc) const override {
return static_cast<double>(get(doc));
}
uint32_t get(DocId doc, largeint_t * v, uint32_t sz) const override {
if (sz > 0) {
v[0] = getInt(doc);
}
return 1;
}
uint32_t get(DocId doc, double * v, uint32_t sz) const override {
if (sz > 0) {
v[0] = getFloat(doc);
}
return 1;
}
uint32_t get(DocId doc, WeightedInt * v, uint32_t sz) const override {
if (sz > 0) {
v[0] = WeightedInt(getInt(doc));
}
return 1;
}
uint32_t get(DocId doc, WeightedFloat * v, uint32_t sz) const override {
if (sz > 0) {
v[0] = WeightedFloat(getFloat(doc));
}
return 1;
}
};
}
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