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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "documenttype.h"
namespace document {
/**
* A ReferenceDataType specifies a particular concrete document type that a
* ReferenceFieldValue instance binds to.
*/
class ReferenceDataType final : public DataType {
const DocumentType& _targetDocType;
public:
ReferenceDataType(const DocumentType& targetDocType, int id);
ReferenceDataType(const ReferenceDataType &) = delete;
ReferenceDataType & operator =(const ReferenceDataType &) = delete;
~ReferenceDataType() override;
const DocumentType& getTargetType() const noexcept {
return _targetDocType;
}
std::unique_ptr<FieldValue> createFieldValue() const override;
void print(std::ostream&, bool verbose, const std::string& indent) const override;
void onBuildFieldPath(FieldPath & path, vespalib::stringref remainingFieldName) const override;
const ReferenceDataType * cast_reference() const noexcept override { return this; }
bool equals(const DataType &type) const noexcept override;
};
} // document
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