| /* |
| * 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.matrix.operators; |
| |
| import org.apache.sysds.runtime.functionobjects.Builtin; |
| import org.apache.sysds.runtime.functionobjects.GreaterThan; |
| import org.apache.sysds.runtime.functionobjects.GreaterThanEquals; |
| import org.apache.sysds.runtime.functionobjects.LessThan; |
| import org.apache.sysds.runtime.functionobjects.LessThanEquals; |
| import org.apache.sysds.runtime.functionobjects.ValueFunction; |
| import org.apache.sysds.runtime.functionobjects.Builtin.BuiltinCode; |
| |
| /** |
| * Scalar operator for scalar-matrix operations with scalar |
| * on the left-hand-side. |
| * |
| */ |
| public class LeftScalarOperator extends ScalarOperator |
| { |
| private static final long serialVersionUID = 2360577666575746424L; |
| |
| public LeftScalarOperator(ValueFunction p, double cst) { |
| this(p,cst,1); |
| } |
| |
| public LeftScalarOperator(ValueFunction p, double cst, int numThreads){ |
| super(p, cst, (p instanceof GreaterThan && cst<=0) |
| || (p instanceof GreaterThanEquals && cst<0) |
| || (p instanceof LessThan && cst>=0) |
| || (p instanceof LessThanEquals && cst>0) |
| || (Builtin.isBuiltinCode(p, BuiltinCode.MAX) && cst<=0) |
| || (Builtin.isBuiltinCode(p, BuiltinCode.MIN) && cst>=0), |
| numThreads); |
| } |
| |
| @Override |
| public ScalarOperator setConstant(double cst, int numThreads) { |
| return new LeftScalarOperator(fn, cst, numThreads); |
| } |
| |
| @Override |
| public ScalarOperator setConstant(double cst) { |
| return new LeftScalarOperator(fn, cst); |
| } |
| |
| @Override |
| public double executeScalar(double in) { |
| return fn.execute(_constant, in); |
| } |
| } |