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Groovy example source code file (CachedClosureClass.java)

This example Groovy source code file (CachedClosureClass.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, cachedclosureclass, cachedclosureclass, cachedmethod, cachedmethod, class, class, classinfo, classinfo

The Groovy CachedClosureClass.java source code

/*
 * Copyright 2003-2010 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.CachedClass;
import org.codehaus.groovy.reflection.ClassInfo;
import org.codehaus.groovy.reflection.CachedMethod;

public class CachedClosureClass extends CachedClass {
    private final Class[] parameterTypes;
    private final int maximumNumberOfParameters;

    public CachedClosureClass(Class klazz, ClassInfo classInfo) {
        super(klazz, classInfo);

        CachedMethod methods [] = getMethods();

        // set it to -1 for starters so parameterTypes will always get a type
        int maximumNumberOfParameters = -1;
        Class[] parameterTypes = null;

        for (CachedMethod method : methods) {
            if ("doCall".equals(method.getName())) {
                final Class[] pt = method.getNativeParameterTypes();
                if (pt.length > maximumNumberOfParameters) {
                    parameterTypes = pt;
                    maximumNumberOfParameters = parameterTypes.length;
                }
            }
        }
        // this line should be useless, but well, just in case
        maximumNumberOfParameters = Math.max(maximumNumberOfParameters,0);

        this.maximumNumberOfParameters = maximumNumberOfParameters;
        this.parameterTypes = parameterTypes;
    }

    public Class[] getParameterTypes() {
        return parameterTypes;
    }

    public int getMaximumNumberOfParameters() {
        return maximumNumberOfParameters;
    }
}

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