Java ClassDoc.subclassOf方法代碼示例

import com.sun.javadoc.ClassDoc; //導入方法依賴的package包/類
/**
 * Adds to the supplied list all exceptions in the "froms"
 * array that are subclasses of an exception in the "withs"
 * array.
 **/
private void collectCompatibleExceptions(ClassDoc[] froms,
                                         ClassDoc[] withs,
                                         List<ClassDoc> list)
{
    for (ClassDoc from : froms) {
        if (!list.contains(from)) {
            for (ClassDoc with : withs) {
                if (from.subclassOf(with)) {
                    list.add(from);
                    break;
                }
            }
        }
    }
}
 

import com.sun.javadoc.ClassDoc; //導入方法依賴的package包/類
/**
 * Computes the exceptions that need to be caught and rethrown in
 * a stub method before wrapping Exceptions in
 * UnexpectedExceptions, given the exceptions declared in the
 * throws clause of the method.  Returns a list containing the
 * exception to catch.  Each exception is guaranteed to be unique,
 * i.e. not a subclass of any of the other exceptions in the list,
 * so the catch blocks for these exceptions may be generated in
 * any order relative to each other.
 *
 * RemoteException and RuntimeException are each automatically
 * placed in the returned list (unless any of their superclasses
 * are already present), since those exceptions should always be
 * directly rethrown by a stub method.
 *
 * The returned list will be empty if java.lang.Exception or one
 * of its superclasses is in the throws clause of the method,
 * indicating that no exceptions need to be caught.
 **/
private List<ClassDoc> computeUniqueCatchList(ClassDoc[] exceptions) {
    List<ClassDoc> uniqueList = new ArrayList<ClassDoc>();

    uniqueList.add(env.docRuntimeException());
    uniqueList.add(env.docRemoteException()); // always catch/rethrow these

    /* For each exception declared by the stub method's throws clause: */
nextException:
    for (ClassDoc ex : exceptions) {
        if (env.docException().subclassOf(ex)) {
            /*
             * If java.lang.Exception (or a superclass) was declared
             * in the throws clause of this stub method, then we don't
             * have to bother catching anything; clear the list and
             * return.
             */
            uniqueList.clear();
            break;
        } else if (!ex.subclassOf(env.docException())) {
            /*
             * Ignore other Throwables that do not extend Exception,
             * because they cannot be thrown by the invoke methods.
             */
            continue;
        }
        /*
         * Compare this exception against the current list of
         * exceptions that need to be caught:
         */
        for (Iterator<ClassDoc> i = uniqueList.iterator(); i.hasNext();) {
            ClassDoc ex2 = i.next();
            if (ex.subclassOf(ex2)) {
                /*
                 * If a superclass of this exception is already on
                 * the list to catch, then ignore this one and continue;
                 */
                continue nextException;
            } else if (ex2.subclassOf(ex)) {
                /*
                 * If a subclass of this exception is on the list
                 * to catch, then remove it;
                 */
                i.remove();
            }
        }
        /* This exception is unique: add it to the list to catch. */
        uniqueList.add(ex);
    }
    return uniqueList;
}