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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/objects/objectoperation.h>
#include <vespa/vespalib/objects/objectpredicate.h>
#include <memory>
namespace search::expression {
class ExpressionNode;
class AttributeNode;
}
namespace search::aggregation {
class AttributeNodeReplacer : public vespalib::ObjectOperation, public vespalib::ObjectPredicate
{
private:
void execute(vespalib::Identifiable &obj) override;
bool check(const vespalib::Identifiable &obj) const override;
virtual std::unique_ptr<search::expression::ExpressionNode> getReplacementNode(const search::expression::AttributeNode &attributeNode) = 0;
};
class Attribute2DocumentAccessor : public AttributeNodeReplacer
{
private:
std::unique_ptr<search::expression::ExpressionNode> getReplacementNode(const search::expression::AttributeNode &attributeNode) override;
};
}
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