morfologik.stemming.ArrayViewList Maven / Gradle / Ivy
package morfologik.stemming;
import java.util.*;
/**
* A view over a range of an array.
*/
@SuppressWarnings("serial")
final class ArrayViewList extends AbstractList
implements RandomAccess, java.io.Serializable
{
/** Backing array. */
private E[] a;
private int start;
private int length;
/*
*
*/
ArrayViewList(E[] array, int start, int length) {
if (array == null)
throw new IllegalArgumentException();
wrap(array, start, length);
}
/*
*
*/
public int size() {
return length;
}
/*
*
*/
public E get(int index) {
return a[start + index];
}
/*
*
*/
public E set(int index, E element) {
throw new UnsupportedOperationException();
}
/*
*
*/
public void add(int index, E element) {
throw new UnsupportedOperationException();
}
/*
*
*/
public E remove(int index) {
throw new UnsupportedOperationException();
}
/*
*
*/
public boolean addAll(int index, Collection c) {
throw new UnsupportedOperationException();
}
/*
*
*/
public int indexOf(Object o) {
if (o == null) {
for (int i = start; i < start + length; i++)
if (a[i] == null)
return i - start;
} else {
for (int i = start; i < start + length; i++)
if (o.equals(a[i]))
return i - start;
}
return -1;
}
public ListIterator listIterator() {
return listIterator(0);
}
/*
*
*/
public ListIterator listIterator(final int index) {
return Arrays.asList(a).subList(start, start + length).listIterator(
index);
}
/*
*
*/
public boolean contains(Object o) {
return indexOf(o) != -1;
}
/*
*
*/
void wrap(E[] array, int start, int length) {
this.a = array;
this.start = start;
this.length = length;
}
}