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/*
 * This file is part of rasdaman community.
 *
 * Rasdaman community is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Rasdaman community 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
 rasdaman GmbH.
 *
 * For more information please see <http://www.rasdaman.org>
 * or contact Peter Baumann via <baumann@rasdaman.com>.
 */
package petascope.wcps.grammar;

/**

 * IntervalExpr

 *

 * @author Andrei Aiordachioaie

 */
public class IntervalExpr implements IParseTreeNode {

    IParseTreeNode e1, e2;
    String function;

    public IntervalExpr(IndexExpr n1, IndexExpr n2) {
        this.e1 = n1;
        this.e2 = n2;
        function = "two indexes";
    }

    public IntervalExpr(String coverage, String axis) {
        function = "crs metadata";
        this.e1 = new ImageCrsDomainMetadataExpr(coverage, axis);
    }

    public String toXML() {
        String result = "";

        if (function.equals("two indexes")) {
            result = e1.toXML() + e2.toXML();
        } else if (function.equals("crs metadata")) {
            result = e1.toXML();
        }

        return result;
    }
}