| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.sysds.runtime.functionobjects; |
| |
| |
| public class GreaterThanEquals extends ValueComparisonFunction |
| { |
| private static final long serialVersionUID = -5444900552418046584L; |
| |
| private static GreaterThanEquals singleObj = null; |
| |
| private GreaterThanEquals() { |
| // nothing to do here |
| } |
| |
| public static GreaterThanEquals getGreaterThanEqualsFnObject() { |
| if ( singleObj == null ) |
| singleObj = new GreaterThanEquals(); |
| return singleObj; |
| } |
| |
| /* |
| * Arithmetic relational operators (==, !=, <=, >=) must be instead of |
| * <code>Double.compare()</code> due to the inconsistencies in the way |
| * NaN and -0.0 are handled. The behavior of methods in |
| * <code>Double</code> class are designed mainly to make Java |
| * collections work properly. For more details, see the help for |
| * <code>Double.equals()</code> and <code>Double.comapreTo()</code>. |
| */ |
| |
| /** |
| * execute() method that returns double is required since current map-reduce |
| * runtime can only produce matrices of doubles. This method is used on MR |
| * side to perform comparisons on matrices like A>=B and A>=2.5 |
| */ |
| @Override |
| public double execute(double in1, double in2) { |
| return (in1 >= in2 ? 1.0 : 0.0); |
| } |
| |
| @Override |
| public boolean compare(double in1, double in2) { |
| return (in1 >= in2); |
| } |
| |
| @Override |
| public boolean compare(long in1, long in2) { |
| return (in1 >= in2); |
| } |
| |
| @Override |
| public boolean compare(boolean in1, boolean in2) { |
| return (in1 && !in2) || (in1 == in2); |
| } |
| |
| @Override |
| public boolean compare(String in1, String in2) { |
| return (in1!=null && in1.compareTo(in2)>=0 ); |
| } |
| } |