io.questdb.griffin.engine.functions.TernaryFunction Maven / Gradle / Ivy

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 *
 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2024 QuestDB
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
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package io.questdb.griffin.engine.functions;

import io.questdb.cairo.sql.Function;
import io.questdb.cairo.sql.SymbolTableSource;
import io.questdb.griffin.PlanSink;
import io.questdb.griffin.SqlException;
import io.questdb.griffin.SqlExecutionContext;

public interface TernaryFunction extends Function {

    @Override
    default void close() {
        getLeft().close();
        getCenter().close();
        getRight().close();
    }

    @Override
    default void cursorClosed() {
        getLeft().cursorClosed();
        getCenter().cursorClosed();
        getRight().cursorClosed();
    }

    Function getCenter();

    Function getLeft();

    Function getRight();

    @Override
    default void init(SymbolTableSource symbolTableSource, SqlExecutionContext executionContext) throws SqlException {
        getLeft().init(symbolTableSource, executionContext);
        getCenter().init(symbolTableSource, executionContext);
        getRight().init(symbolTableSource, executionContext);
    }

    @Override
    default void initCursor() {
        getLeft().initCursor();
        getCenter().initCursor();
        getRight().initCursor();
    }

    @Override
    default boolean isConstant() {
        return getLeft().isConstant() && getCenter().isConstant() && getRight().isConstant();
    }

    @Override
    default boolean isThreadSafe() {
        return getLeft().isThreadSafe() && getCenter().isThreadSafe() && getRight().isThreadSafe();
    }

    @Override
    default boolean isRuntimeConstant() {
        boolean arc = getLeft().isRuntimeConstant();
        boolean brc = getCenter().isRuntimeConstant();
        boolean crc = getRight().isRuntimeConstant();

        boolean ac = getLeft().isConstant();
        boolean bc = getCenter().isConstant();
        boolean cc = getRight().isConstant();

        return (ac || arc) && (bc || brc) && (cc || crc) && (arc || brc || crc);
    }

    @Override
    default boolean supportsParallelism() {
        return getLeft().supportsParallelism() && getCenter().supportsParallelism() && getRight().supportsParallelism();
    }

    @Override
    default void toPlan(PlanSink sink) {
        sink.val(getName()).val('(').val(getLeft()).val(',').val(getCenter()).val(',').val(getRight()).val(')');
    }

    @Override
    default void toTop() {
        getLeft().toTop();
        getCenter().toTop();
        getRight().toTop();
    }
}