aboutsummaryrefslogtreecommitdiffstats
path: root/searchlib/src/vespa/searchlib/queryeval/dot_product_blueprint.h
blob: 370895dd94ffbd49c3d7479f492671fb52de341d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.

#pragma once

#include "blueprint.h"
#include <vespa/searchlib/fef/matchdatalayout.h>

namespace search::fef { class TermFieldMatchData; }

namespace search::queryeval {

class DotProductBlueprint : public ComplexLeafBlueprint
{
    fef::MatchDataLayout       _layout;
    std::vector<int32_t>       _weights;
    std::vector<Blueprint::UP> _terms;

public:
    explicit DotProductBlueprint(const FieldSpec &field);
    DotProductBlueprint(const DotProductBlueprint &) = delete;
    DotProductBlueprint &operator=(const DotProductBlueprint &) = delete;
    ~DotProductBlueprint() override;

    // used by create visitor
    FieldSpecBase getNextChildField(FieldSpecBase parent) {
        return {parent.getFieldId(), _layout.allocTermField(parent.getFieldId()), false};
    }

    // used by create visitor
    void reserve(size_t num_children);
    void addTerm(Blueprint::UP term, int32_t weight, HitEstimate & estimate);
    void complete(HitEstimate estimate) {
        setEstimate(estimate);
    }

    void sort(InFlow in_flow, const Options &opts) override;
    FlowStats calculate_flow_stats(uint32_t docid_limit) const override;
    
    SearchIteratorUP createLeafSearch(const search::fef::TermFieldMatchDataArray &tfmda) const override;
    SearchIteratorUP createFilterSearch(FilterConstraint constraint) const override;

    void visitMembers(vespalib::ObjectVisitor &visitor) const override;
    void fetchPostings(const ExecuteInfo &execInfo) override;
};

}