blob: 1f2da0326198675dee541dca454677bd8b7a7895 (
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
47
48
49
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "doc_vector_access.h"
#include <vespa/eval/eval/typed_cells.h>
#include <vespa/searchcommon/attribute/distance_metric.h>
#include <memory>
namespace vespalib::eval { class ValueType; struct Value; }
namespace vespalib::slime { struct Inserter; }
namespace search::tensor {
struct DistanceFunctionFactory;
class NearestNeighborIndex;
class SerializedTensorRef;
/**
* Interface for tensor attribute used by feature executors to get information.
*/
class ITensorAttribute : public DocVectorAccess {
public:
virtual ~ITensorAttribute() {}
virtual std::unique_ptr<vespalib::eval::Value> getTensor(uint32_t docId) const = 0;
virtual std::unique_ptr<vespalib::eval::Value> getEmptyTensor() const = 0;
virtual vespalib::eval::TypedCells extract_cells_ref(uint32_t docid) const = 0;
virtual const vespalib::eval::Value& get_tensor_ref(uint32_t docid) const = 0;
virtual SerializedTensorRef get_serialized_tensor_ref(uint32_t docid) const = 0;
virtual bool supports_extract_cells_ref() const = 0;
virtual bool supports_get_tensor_ref() const = 0;
virtual bool supports_get_serialized_tensor_ref() const = 0;
virtual const vespalib::eval::ValueType & getTensorType() const = 0;
virtual DistanceFunctionFactory& distance_function_factory() const = 0;
virtual const NearestNeighborIndex* nearest_neighbor_index() const { return nullptr; }
using DistanceMetric = search::attribute::DistanceMetric;
virtual DistanceMetric distance_metric() const = 0;
virtual uint32_t get_num_docs() const = 0;
/**
* Gets custom state for this tensor attribute by inserting it into the given Slime inserter.
* This function is only called by the writer thread or when the writer thread is blocked.
*/
virtual void get_state(const vespalib::slime::Inserter& inserter) const = 0;
};
} // namespace search::tensor
|
