de.intarsys.pdf.postscript.Operator_gt Maven / Gradle / Ivy

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/*
 * Copyright (c) 2007, intarsys consulting GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * - Neither the name of intarsys nor the names of its contributors may be used
 *   to endorse or promote products derived from this software without specific
 *   prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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package de.intarsys.pdf.postscript;

public class Operator_gt implements IOperator {
	public static Operator_gt Instance;

	static {
		Instance = new Operator_gt();
	}

	private Operator_gt() {
		super();
	}

	public void execute(Handler handler) throws ParseException {
		Object o2 = handler.pop();
		Object o1 = handler.pop();
		if (o1 instanceof Number && o2 instanceof Number) {
			handler.push(((Number) o1).doubleValue() > ((Number) o2)
					.doubleValue());
			return;
		}
		if (o1 instanceof String && o2 instanceof String) {
			handler.push(((String) o1).compareTo((String) o2) > 0);
			return;
		}
		throw new ParseException("operandes to not comparable");
	}
}