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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 "expressionnode.h"
#include <vespa/vespalib/objects/objectoperation.h>
#include <vespa/vespalib/objects/objectpredicate.h>
#include <vespa/searchlib/common/hitrank.h>
namespace document {
class DocumentType;
class Document;
}
namespace search::attribute { class IAttributeContext; }
namespace search::expression {
class AttributeNode;
class DocumentAccessorNode;
class RelevanceNode;
class InterpolatedLookup;
class ArrayAtLookup;
struct ConfigureStaticParams {
ConfigureStaticParams (const attribute::IAttributeContext * attrCtx,
const document::DocumentType * docType)
: ConfigureStaticParams(attrCtx, docType, true)
{}
ConfigureStaticParams (const attribute::IAttributeContext * attrCtx,
const document::DocumentType * docType,
bool enableNesteddMultivalueGrouping)
: _attrCtx(attrCtx),
_docType(docType),
_enableNestedMultivalueGrouping(enableNesteddMultivalueGrouping)
{ }
const attribute::IAttributeContext * _attrCtx;
const document::DocumentType * _docType;
bool _enableNestedMultivalueGrouping;
};
class ExpressionTree : public ExpressionNode
{
public:
DECLARE_EXPRESSIONNODE(ExpressionTree);
class Configure : public vespalib::ObjectOperation, public vespalib::ObjectPredicate
{
private:
void execute(vespalib::Identifiable &obj) override;
bool check(const vespalib::Identifiable &obj) const override { return obj.inherits(ExpressionTree::classId); }
};
ExpressionTree() noexcept;
ExpressionTree(const ExpressionNode & root);
ExpressionTree(ExpressionNode::UP root);
ExpressionTree(const ExpressionTree & rhs);
ExpressionTree(ExpressionTree &&) noexcept = default;
~ExpressionTree();
ExpressionTree & operator = (ExpressionNode::UP rhs);
ExpressionTree & operator = (const ExpressionTree & rhs);
ExpressionTree & operator = (ExpressionTree &&) noexcept = default;
bool execute(DocId docId, HitRank rank) const;
bool execute(const document::Document & doc, HitRank rank) const;
const ExpressionNode * getRoot() const { return _root.get(); }
ExpressionNode * getRoot() { return _root.get(); }
const ResultNode * getResult() const override { return _root->getResult(); }
friend vespalib::Serializer & operator << (vespalib::Serializer & os, const ExpressionTree & et);
friend vespalib::Deserializer & operator >> (vespalib::Deserializer & is, ExpressionTree & et);
void swap(ExpressionTree &);
private:
void visitMembers(vespalib::ObjectVisitor &visitor) const override;
void selectMembers(const vespalib::ObjectPredicate &predicate, vespalib::ObjectOperation &operation) override;
bool onExecute() const override { return _root->execute(); }
void onPrepare(bool preserveAccurateTypes) override;
using AttributeNodeList = std::vector<AttributeNode *>;
using DocumentAccessorNodeList = std::vector<DocumentAccessorNode *>;
using RelevanceNodeList = std::vector<RelevanceNode *>;
ExpressionNode::CP _root;
AttributeNodeList _attributeNodes;
DocumentAccessorNodeList _documentAccessorNodes;
RelevanceNodeList _relevanceNodes;
};
}
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