TScalar.java example

Explorer
sql-layer-master
/**
 * 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;

import com.foundationdb.server.explain.CompoundExplainer;
import com.foundationdb.server.explain.ExplainContext;
import com.foundationdb.server.types.value.ValueSource;
import com.foundationdb.server.types.value.ValueTarget;
import com.foundationdb.server.types.texpressions.TPreparedExpression;

import java.util.List;

public interface TScalar extends TOverload {
    TPreptimeValue evaluateConstant(TPreptimeContext context, LazyList<? extends TPreptimeValue> inputs);
    void finishPreptimePhase(TPreptimeContext context);
    void evaluate(TExecutionContext context, LazyList<? extends ValueSource> inputs, ValueTarget output);
    String toString(List<? extends TPreparedExpression> inputs, TInstance resultType);
    CompoundExplainer getExplainer(ExplainContext context, List<? extends TPreparedExpression> inputs, TInstance resultType);
}