/**
 * 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.sql.optimizer.plan;

import com.foundationdb.server.types.TInstance;
import com.foundationdb.sql.types.DataTypeDescriptor;
import com.foundationdb.sql.parser.ValueNode;

/** A condition evaluated against a set of rows.
 */
public class AnyCondition extends SubqueryExpression implements ConditionExpression
{
    public AnyCondition(Subquery subquery, 
                        DataTypeDescriptor sqlType, ValueNode sqlSource,
                        TInstance type) {
        super(subquery, sqlType, sqlSource, type);
    }

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof AnyCondition)) return false;
        AnyCondition other = (AnyCondition)obj;
        // Currently this is ==; don't match whole subquery.
        return getSubquery().equals(other.getSubquery());
    }

    @Override
    public int hashCode() {
        return getSubquery().hashCode();
    }

    @Override
    public Implementation getImplementation() {
        return Implementation.NORMAL;
    }

    @Override
    public String toString() {
        return "ANY(" + super.toString() + ")";
    }

}