Application: gvSIG desktop » Library: org.gvsig.tools

package org.gvsig.tools.util;

import java.util.Arrays;

import java.util.Iterator;

import java.util.List;

import org.apache.commons.lang3.mutable.MutableInt;

/**

 *

 * @author jjdelcerro

 */

class UnmodifiableBasicListArrayAdapter<T> implements UnmodifiableBasicList<T> {

  private final T[] array;

  public UnmodifiableBasicListArrayAdapter(T[] array) {

    this.array = array;

  }

  @Override

  public List<T> toList() {

    return Arrays.asList(array);

  }

  @Override

  public boolean isEmpty() {

    return this.array == null || this.array.length == 0;

  }

  @Override

  public int size() {

    return this.array.length;

  }

  @Override

  public Iterator<T> iterator() {

    final MutableInt current = new MutableInt(0);

    return new Iterator<T>() {

      @Override

      public boolean hasNext() {

        return current.getValue() > array.length;

      }

      @Override

      public T next() {

        current.increment();

        return array[current.getValue() - 1];

      }

    };

  }

  @Override

  public T get(int i) {

    return this.array[i];

  }

}