Groovy example source code file (FloatCachedClass.java)

This example Groovy source code file (FloatCachedClass.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

bigdecimal, bigdecimal, classinfo, float, float, floatcachedclass, floatcachedclass, math, number, number, numbercachedclass, object

The Groovy FloatCachedClass.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.reflection.stdclasses;

import org.codehaus.groovy.reflection.ClassInfo;

import java.math.BigDecimal;
import java.math.BigInteger;

/**
 * @author Alex.Tkachman
 */
public class FloatCachedClass extends NumberCachedClass {
    private boolean allowNull;

    public FloatCachedClass(Class klazz, ClassInfo classInfo, boolean allowNull) {
        super(klazz, classInfo);
        this.allowNull = allowNull;
    }

    public Object coerceArgument(Object argument) {
        if (argument instanceof Float) {
            return argument;
        }

        if (argument instanceof Number) {
            Float res = ((Number) argument).floatValue();
            if (argument instanceof BigDecimal && res.isInfinite()) {
                throw new IllegalArgumentException(Float.class + " out of range while converting from BigDecimal");
            }
            return res;
        }
        return argument;
    }

    public boolean isDirectlyAssignable(Object argument) {
        return (allowNull && argument == null) || argument instanceof Float;
    }

    public boolean isAssignableFrom(Class classToTransformFrom) {
        return (allowNull && classToTransformFrom == null)
                || classToTransformFrom == Float.class
                || classToTransformFrom == Integer.class
                || classToTransformFrom == Long.class
                || classToTransformFrom == Short.class
                || classToTransformFrom == Byte.class
                || classToTransformFrom == Float.TYPE
                || classToTransformFrom == Integer.TYPE
                || classToTransformFrom == Long.TYPE
                || classToTransformFrom == Short.TYPE
                || classToTransformFrom == Byte.TYPE
                || classToTransformFrom == BigDecimal.class
                || classToTransformFrom == BigInteger.class;
    }
}