platform/util/src/com/intellij/util/enumeration/ArrayListEnumeration.java

/*
 * Copyright 2000-2013 JetBrains s.r.o.
 *
 * 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.intellij.util.enumeration;

import java.util.ArrayList;
import java.util.Enumeration;
import java.util.NoSuchElementException;

public class ArrayListEnumeration implements Enumeration {
  private final ArrayList myArrayList;
  private int myCounter;

  public ArrayListEnumeration(ArrayList arraylist) {
    myArrayList = arraylist;
    myCounter = 0;
  }

  @Override
  public Object nextElement() {
    if (myCounter >= myArrayList.size()) {
      throw new NoSuchElementException();
    } else {
      return myArrayList.get(myCounter++);
    }
  }

  @Override
  public boolean hasMoreElements() {
    return myCounter < myArrayList.size();
  }
}