/**
 * Copyright (C) 2009-2013 FoundationDB, LLC
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.foundationdb.server.types.texpressions;

import com.foundationdb.server.explain.*;
import com.foundationdb.server.types.LazyList;
import com.foundationdb.server.types.TExecutionContext;
import com.foundationdb.server.types.TInputSet;
import com.foundationdb.server.types.TInstance;
import com.foundationdb.server.types.TScalar;
import com.foundationdb.server.types.TPreptimeContext;
import com.foundationdb.server.types.TPreptimeValue;
import com.foundationdb.server.types.value.ValueSource;
import com.foundationdb.server.types.value.ValueTarget;

import java.util.List;

public final class TValidatedScalar extends TValidatedOverload implements TScalar {

    // TOverload methods (straight delegation)

    @Override
    public TPreptimeValue evaluateConstant(TPreptimeContext context, LazyList<? extends TPreptimeValue> inputs) {
        return scalar.evaluateConstant(context, inputs);
    }

    @Override
    public void finishPreptimePhase(TPreptimeContext context) {
        scalar.finishPreptimePhase(context);
    }

    @Override
    public void evaluate(TExecutionContext context, LazyList<? extends ValueSource> inputs, ValueTarget output) {
        scalar.evaluate(context, inputs, output);
    }

    @Override
    public String toString(List<? extends TPreparedExpression> inputs, TInstance resultType) {
        return scalar.toString(inputs, resultType);
    }

    @Override
    public CompoundExplainer getExplainer(ExplainContext context, List<? extends TPreparedExpression> inputs, TInstance resultType)
    {
        return scalar.getExplainer(context, inputs, resultType);
    }

    public TValidatedScalar(TScalar scalar) {
        this(scalar, scalar.inputSets());
    }

    private TValidatedScalar(TScalar scalar, List<TInputSet> inputSets) {
        super(scalar, inputSets);
        this.scalar = scalar;
    }

    private final TScalar scalar;
}