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Groovy example source code file (StringCachedClass.java)

This example Groovy source code file (StringCachedClass.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

cachedclass, class, class, gstring, gstring_class, object, object, string, string_class, string_class, stringcachedclass, stringcachedclass

The Groovy StringCachedClass.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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.codehaus.groovy.reflection.stdclasses;

import groovy.lang.GString;
import org.codehaus.groovy.reflection.CachedClass;
import org.codehaus.groovy.reflection.ClassInfo;
import org.codehaus.groovy.reflection.ReflectionCache;

 * @author Alex.Tkachman
public class StringCachedClass extends CachedClass {
    private static final Class STRING_CLASS = String.class;
    private static final Class GSTRING_CLASS = GString.class;

    public StringCachedClass(ClassInfo classInfo) {
        super(STRING_CLASS, classInfo);

    public boolean isDirectlyAssignable(Object argument) {
        return argument instanceof String;

    public boolean isAssignableFrom(Class classToTransformFrom) {
        return  classToTransformFrom == null
              || classToTransformFrom == STRING_CLASS
              || ReflectionCache.isAssignableFrom(GSTRING_CLASS,classToTransformFrom);

    public Object coerceArgument(Object argument) {
        return argument instanceof GString ? argument.toString() : argument;

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