| /* |
| * Copyright (c) 2009, Rickard Öberg. All Rights Reserved. |
| * |
| * Licensed 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.zest.api.property; |
| |
| import java.math.BigDecimal; |
| |
| /** |
| * Convenience class for mathematical operations on numerical properties. |
| * <pre>import static org.qi4j.api.property.Numbers.*; |
| * ... |
| * add( object.numberProperty(), 5 );</pre> |
| */ |
| public final class Numbers |
| { |
| // Integer operations |
| |
| public static Property<Integer> add( Property<Integer> property, int amount ) |
| { |
| property.set( property.get() + amount ); |
| return property; |
| } |
| |
| public static Property<Integer> mult( Property<Integer> property, int amount ) |
| { |
| property.set( property.get() * amount ); |
| return property; |
| } |
| |
| public static Property<Integer> sub( Property<Integer> property, int amount ) |
| { |
| property.set( property.get() - amount ); |
| return property; |
| } |
| |
| public static Property<Integer> div( Property<Integer> property, int amount ) |
| { |
| property.set( property.get() / amount ); |
| return property; |
| } |
| |
| // Long operations |
| |
| public static Property<Long> add( Property<Long> property, long amount ) |
| { |
| property.set( property.get() + amount ); |
| return property; |
| } |
| |
| public static Property<Long> mult( Property<Long> property, long amount ) |
| { |
| property.set( property.get() * amount ); |
| return property; |
| } |
| |
| public static Property<Long> sub( Property<Long> property, long amount ) |
| { |
| property.set( property.get() - amount ); |
| return property; |
| } |
| |
| public static Property<Long> div( Property<Long> property, long amount ) |
| { |
| property.set( property.get() / amount ); |
| return property; |
| } |
| |
| // Double operations |
| |
| public static Property<Double> add( Property<Double> property, double amount ) |
| { |
| property.set( property.get() + amount ); |
| return property; |
| } |
| |
| public static Property<Double> mult( Property<Double> property, double amount ) |
| { |
| property.set( property.get() * amount ); |
| return property; |
| } |
| |
| public static Property<Double> sub( Property<Double> property, double amount ) |
| { |
| property.set( property.get() - amount ); |
| return property; |
| } |
| |
| public static Property<Double> div( Property<Double> property, double amount ) |
| { |
| property.set( property.get() / amount ); |
| return property; |
| } |
| |
| // Float operations |
| |
| public static Property<Float> add( Property<Float> property, float amount ) |
| { |
| property.set( property.get() + amount ); |
| return property; |
| } |
| |
| public static Property<Float> mult( Property<Float> property, float amount ) |
| { |
| property.set( property.get() * amount ); |
| return property; |
| } |
| |
| public static Property<Float> sub( Property<Float> property, float amount ) |
| { |
| property.set( property.get() - amount ); |
| return property; |
| } |
| |
| public static Property<Float> div( Property<Float> property, float amount ) |
| { |
| property.set( property.get() / amount ); |
| return property; |
| } |
| |
| // BigDecimal operations |
| |
| public static Property<BigDecimal> add( Property<BigDecimal> property, BigDecimal amount ) |
| { |
| property.set( property.get().add( amount ) ); |
| return property; |
| } |
| |
| public static Property<BigDecimal> mult( Property<BigDecimal> property, BigDecimal amount ) |
| { |
| property.set( property.get().multiply( amount ) ); |
| return property; |
| } |
| |
| public static Property<BigDecimal> sub( Property<BigDecimal> property, BigDecimal amount ) |
| { |
| property.set( property.get().subtract( amount ) ); |
| return property; |
| } |
| |
| public static Property<BigDecimal> div( Property<BigDecimal> property, BigDecimal amount ) |
| { |
| property.set( property.get().divide( amount ) ); |
| return property; |
| } |
| } |