31 lines
768 B
C++
31 lines
768 B
C++
#pragma once
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#include <string>
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#include "database/graph_db.hpp"
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#include "query/exception/query_engine.hpp"
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#include "query/exception/plan_execution.hpp"
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#include "query/plan/program.hpp"
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#include "query/util.hpp"
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// preparations before execution
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// execution
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// postprocess the results
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template <typename Stream>
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class ProgramExecutor
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{
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public:
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// QueryProgram has to know about the Stream
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// Stream has to be passed in this function for every execution
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auto execute(QueryProgram<Stream> &program, Db &db, Stream &stream)
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{
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try {
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return program.plan->run(db, program.stripped.arguments, stream);
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// TODO: catch more exceptions
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} catch (...) {
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throw PlanExecutionException("");
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}
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}
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};
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