unmodifiableforwarditerator.java

来自「java 的源代码」· Java 代码 · 共 48 行

package com.reddragon2046.base.utilities.data.adapters;

import com.reddragon2046.base.utilities.data.ForwardIterator;
import com.reddragon2046.base.utilities.data.InputIterator;

// Referenced classes of package com.reddragon2046.base.utilities.data.adapters:
//            UnmodifiableInputIterator, UnmodifiableIterator

public class UnmodifiableForwardIterator extends UnmodifiableInputIterator
    implements ForwardIterator
{

    protected UnmodifiableForwardIterator(ForwardIterator i)
    {
        super(i);
    }

    protected ForwardIterator forwardIterator()
    {
        return (ForwardIterator)iterator();
    }

    public Object clone()
    {
        return new UnmodifiableForwardIterator((ForwardIterator)forwardIterator().clone());
    }

    public void put(Object object)
    {
        throw new UnsupportedOperationException();
    }

    public void put(int offset, Object object)
    {
        throw new UnsupportedOperationException();
    }

    public Object get(int offset)
    {
        return forwardIterator().get(offset);
    }

    public int distance(InputIterator iterator)
    {
        return forwardIterator().distance(iterator);
    }
}