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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* \class document::StringFieldValue
* \ingroup fieldvalue
*
* \brief Wrapper for string field values.
*/
#pragma once
#include "literalfieldvalue.h"
#include <vespa/document/annotation/spantree.h>
#include <vespa/vespalib/stllike/hash_map.h>
#include <vespa/vespalib/util/buffer.h>
namespace document {
class FixedTypeRepo;
class DocumentTypeRepo;
class StringFieldValue final : public LiteralFieldValue<StringFieldValue, DataType::T_STRING> {
public:
using Parent = LiteralFieldValue<StringFieldValue, DataType::T_STRING>;
using SpanTrees = std::vector<SpanTree::UP>;
StringFieldValue() : Parent(Type::STRING), _annotationData() { }
StringFieldValue(const vespalib::stringref &value)
: Parent(Type::STRING, value), _annotationData() { }
StringFieldValue(const StringFieldValue &rhs);
StringFieldValue &operator=(const StringFieldValue &rhs);
StringFieldValue &operator=(vespalib::stringref value) override;
~StringFieldValue() override;
FieldValue &assign(const FieldValue &) override;
void accept(FieldValueVisitor &visitor) override { visitor.visit(*this); }
void accept(ConstFieldValueVisitor &visitor) const override { visitor.visit(*this); }
StringFieldValue *clone() const override { return new StringFieldValue(*this); }
int compare(const FieldValue &other) const override;
void print(std::ostream &out, bool verbose, const std::string &indent) const override;
void setSpanTrees(vespalib::ConstBufferRef serialized, const FixedTypeRepo &repo, uint8_t version,
bool isSerializedDataLongLived);
void setSpanTrees(const SpanTrees &trees, const FixedTypeRepo &repo);
SpanTrees getSpanTrees() const;
vespalib::ConstBufferRef getSerializedAnnotations() const {
return _annotationData ? _annotationData->getSerializedAnnotations() : vespalib::ConstBufferRef();
}
bool hasSpanTrees() const { return _annotationData ? _annotationData->hasSpanTrees() : false; }
static const SpanTree *findTree(const SpanTrees &trees, vespalib::stringref name);
void clearSpanTrees() {
if (_annotationData) {
doClearSpanTrees();
}
}
using LiteralFieldValueB::operator=;
static std::unique_ptr<StringFieldValue> make(vespalib::stringref value) { return std::make_unique<StringFieldValue>(value); }
static std::unique_ptr<StringFieldValue> make() { return StringFieldValue::make(""); }
private:
void doClearSpanTrees();
class AnnotationData {
public:
using BackingBlob = std::vector<char>;
using UP = std::unique_ptr<AnnotationData>;
VESPA_DLL_LOCAL AnnotationData(const AnnotationData & rhs);
AnnotationData & operator = (const AnnotationData &) = delete;
VESPA_DLL_LOCAL AnnotationData(vespalib::ConstBufferRef serialized, const FixedTypeRepo &repo,
uint8_t version, bool isSerializedDataLongLived);
[[nodiscard]] bool hasSpanTrees() const { return _serialized.size() > 0u; }
[[nodiscard]] vespalib::ConstBufferRef getSerializedAnnotations() const { return _serialized; }
[[nodiscard]] VESPA_DLL_LOCAL SpanTrees getSpanTrees() const;
private:
vespalib::ConstBufferRef _serialized;
BackingBlob _backingBlob;
const DocumentTypeRepo &_repo;
const DocumentType &_docType;
uint8_t _version;
};
VESPA_DLL_LOCAL AnnotationData::UP copyAnnotationData() const;
AnnotationData::UP _annotationData;
};
} // document
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