blob: 173f69137c3a1d1ce83f5d80407f5b73517a678a (
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
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/data/memory.h>
#include <memory>
namespace search::attribute { class IAttributeVector; }
namespace vespalib { class Stash; }
namespace vespalib::slime { struct Cursor; }
namespace search::docsummary {
/*
* This class reads values from a struct field attribute and inserts
* them into proper position in an array of struct or map of struct.
* If the value to be inserted is considered to be undefined then
* the value is not inserted.
*/
class AttributeFieldWriter
{
protected:
const vespalib::Memory _fieldName;
explicit AttributeFieldWriter(vespalib::Memory fieldName);
public:
virtual ~AttributeFieldWriter();
virtual uint32_t fetch(uint32_t docId) = 0;
virtual void print(uint32_t idx, vespalib::slime::Cursor &cursor) = 0;
// Create a new attribute field writer which is owned by stash
static AttributeFieldWriter& create(vespalib::Memory fieldName, const search::attribute::IAttributeVector& attr, vespalib::Stash& stash, bool keep_empty_strings = false);
};
}
|
