io.questdb.griffin.engine.functions.cast.CastBooleanToStrFunctionFactory Maven / Gradle / Ivy

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 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2023 QuestDB
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 *
 *  http://www.apache.org/licenses/LICENSE-2.0
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 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
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package io.questdb.griffin.engine.functions.cast;

import io.questdb.cairo.CairoConfiguration;
import io.questdb.cairo.sql.Function;
import io.questdb.cairo.sql.Record;
import io.questdb.griffin.FunctionFactory;
import io.questdb.griffin.SqlExecutionContext;
import io.questdb.griffin.engine.functions.constants.StrConstant;
import io.questdb.std.IntList;
import io.questdb.std.ObjList;
import io.questdb.std.str.CharSink;

public class CastBooleanToStrFunctionFactory implements FunctionFactory {
    @Override
    public String getSignature() {
        return "cast(Ts)";
    }

    @Override
    public Function newInstance(int position, ObjList args, IntList argPositions, CairoConfiguration configuration, SqlExecutionContext sqlExecutionContext) {
        Function func = args.getQuick(0);
        if (func.isConstant()) {
            return new StrConstant(func.getStr(null));
        }
        return new Func(args.getQuick(0));
    }

    private static class Func extends AbstractCastToStrFunction {
        public Func(Function arg) {
            super(arg);
        }

        @Override
        public CharSequence getStr(Record rec) {
            return arg.getStr(rec);
        }

        @Override
        public void getStr(Record rec, CharSink sink) {
            arg.getStr(rec, sink);
        }

        @Override
        public CharSequence getStrB(Record rec) {
            return arg.getStrB(rec);
        }
    }
}