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Groovy example source code file (IntegerMath.java)

This example Groovy source code file (IntegerMath.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

instance, instance, integermath, integermath, number, number, numbermath, numbermath

The Groovy IntegerMath.java source code

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * 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.codehaus.groovy.runtime.typehandling;

/**
 * Integer NumberMath operations
 * 
 * @author Steve Goetze
 */
public final class IntegerMath extends NumberMath {

    public static final IntegerMath INSTANCE = new IntegerMath();

    private IntegerMath() {}
                    
    protected Number absImpl(Number number) {
        return Integer.valueOf(Math.abs(number.intValue()));
    }
    
    public Number addImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() + right.intValue());
    }

    public Number subtractImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() - right.intValue());
    }

    public Number multiplyImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() * right.intValue());
    }

    public Number divideImpl(Number left, Number right) {
        return BigDecimalMath.INSTANCE.divideImpl(left, right);
    }
    
    public int compareToImpl(Number left, Number right) {
        int leftVal = left.intValue();
        int rightVal = right.intValue();
        return (leftVal<rightVal ? -1 : (leftVal==rightVal ? 0 : 1));
    }

    protected Number orImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() | right.intValue());
    }

    protected Number andImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() & right.intValue());
    }

    protected Number xorImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() ^ right.intValue());
    }

    protected Number intdivImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() / right.intValue());
    }
    
    protected Number modImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() % right.intValue());
    }

    protected Number unaryMinusImpl(Number left) {
        return Integer.valueOf(-left.intValue());
    }

    protected Number bitwiseNegateImpl(Number left) {
        return Integer.valueOf(~left.intValue());
    }

    protected Number leftShiftImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() << right.intValue());
    }

    protected Number rightShiftImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() >> right.intValue());
    }

    protected Number rightShiftUnsignedImpl(Number left, Number right) {
        return Integer.valueOf(left.intValue() >>> right.intValue());
    }
}

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