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The Adobe Experience Manager SDK

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/*
 * Copyright (C) 2012 The Guava 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 com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import com.google.common.base.Function;
import java.util.ListIterator;

/**
 *  An iterator that transforms a backing list iterator; for internal use. This
 *  avoids the object overhead of constructing a {@link Function} for internal
 *  methods.
 *
 *  @author Louis Wasserman
 *
 * @deprecated The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
 */
@GwtCompatible
@Deprecated(since = "2022-12-01")
abstract class TransformedListIterator extends TransformedIterator implements ListIterator {

    TransformedListIterator(ListIterator backingIterator) {
        super(backingIterator);
    }

    private ListIterator backingIterator() {
        return Iterators.cast(backingIterator);
    }

    @Override
    public final boolean hasPrevious() {
        return backingIterator().hasPrevious();
    }

    @Override
    public final T previous() {
        return transform(backingIterator().previous());
    }

    @Override
    public final int nextIndex() {
        return backingIterator().nextIndex();
    }

    @Override
    public final int previousIndex() {
        return backingIterator().previousIndex();
    }

    @Override
    public void set(T element) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void add(T element) {
        throw new UnsupportedOperationException();
    }
}