/** Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved. Contact: SYSTAP, LLC DBA Blazegraph 2501 Calvert ST NW #106 Washington, DC 20008 licenses@blazegraph.com This program 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; version 2 of the License. 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* * Created on Sep 7, 2011 */ package com.bigdata.rdf.internal; /** * Support for the picky xpath math functions: abs, ceiling, floor, and round. * * @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a> * @version $Id$ * * FIXME Implement correct version of xpath math functions with test suite. */ public class XPathMathFunctions { public static final IV abs(final IV iv) { throw new UnsupportedOperationException(); } /** * Returns the smallest (closest to negative infinity) number with no * fractional part that is not less than the value of $arg. If type of $arg * is one of the four numeric types xs:float, xs:double, xs:decimal or * xs:integer the type of the result is the same as the type of $arg. If the * type of $arg is a type derived from one of the numeric types, the result * is an instance of the base numeric type. * * For xs:float and xs:double arguments, if the argument is positive zero, * then positive zero is returned. If the argument is negative zero, then * negative zero is returned. If the argument is less than zero and greater * than -1, negative zero is returned. * * @see http://www.w3.org/TR/xpath-functions/#func-ceiling */ public static final IV ceiling(final IV iv) { // switch (iv.getDTE()) { // case XSDFloat: // case XSDDouble: // case XSDInteger: // case XSDDecimal: // } // return new XSDDecimalIV(left.round(new MathContext(0/* precision */, // RoundingMode.CEILING))); throw new UnsupportedOperationException(); } public static final IV floor(final IV iv) { throw new UnsupportedOperationException(); } public static final IV round(final IV iv) { throw new UnsupportedOperationException(); } }