| /* |
| * 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.openjpa.kernel.exps; |
| |
| import java.math.BigDecimal; |
| import java.math.BigInteger; |
| |
| import org.apache.openjpa.kernel.Filters; |
| import serp.util.Numbers; |
| |
| /** |
| * Take the absolute value of a number. |
| */ |
| class Abs |
| extends UnaryMathVal { |
| |
| /** |
| * Constructor. Provide the number whose absolute value to calculate. |
| */ |
| public Abs(Val val) { |
| super(val); |
| } |
| |
| protected Class getType(Class c) { |
| Class wrap = Filters.wrap(c); |
| if (wrap == Integer.class |
| || wrap == Float.class |
| || wrap == Double.class |
| || wrap == Long.class |
| || wrap == BigDecimal.class |
| || wrap == BigInteger.class) |
| return Filters.unwrap(c); |
| return int.class; |
| } |
| |
| protected Object operate(Object o, Class c) { |
| c = Filters.wrap(c); |
| if (c == Integer.class) |
| return Numbers.valueOf(Math.abs(((Number) o).intValue())); |
| if (c == Float.class) |
| return new Float(Math.abs(((Number) o).floatValue())); |
| if (c == Double.class) |
| return new Double(Math.abs(((Number) o).doubleValue())); |
| if (c == Long.class) |
| return Numbers.valueOf(Math.abs(((Number) o).longValue())); |
| if (c == BigDecimal.class) |
| return ((BigDecimal) o).abs(); |
| if (c == BigInteger.class) |
| return ((BigInteger) o).abs(); |
| |
| // default to int |
| return Numbers.valueOf(Math.abs(((Number) o).intValue())); |
| } |
| } |