blob: 386b0d91add8ab2ee274556b2fb2ff54e4b26ab1 (
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
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "tensor_attribute.h"
#include "default_nearest_neighbor_index_factory.h"
#include "tensor_buffer_store.h"
namespace search::tensor {
/**
* Attribute vector class storing serialized tensors for all documents in memory.
*
* When fetching a tensor with getTensor(docId) the returned Value
* will have a FastValueIndex (constructed on the fly) for its sparse
* mapping, but refer to a common type, while cells() will refer to
* memory in the serialized store without copying.
*
*/
class SerializedFastValueAttribute : public TensorAttribute {
TensorBufferStore _tensorBufferStore; // data store for serialized tensors
public:
SerializedFastValueAttribute(vespalib::stringref baseFileName, const Config &cfg, const NearestNeighborIndexFactory& index_factory = DefaultNearestNeighborIndexFactory());
~SerializedFastValueAttribute() override;
SerializedTensorRef get_serialized_tensor_ref(uint32_t docid) const override;
bool supports_get_serialized_tensor_ref() const override;
// Implements DocVectorAccess
vespalib::eval::TypedCells get_vector(uint32_t docid, uint32_t subspace) const override;
VectorBundle get_vectors(uint32_t docid) const override;
};
}
|
