| // Copyright 2008 Google Inc. |
| // |
| // 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.gerrit.index.query; |
| |
| import com.google.common.collect.ImmutableList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| public class ListResultSet<T> implements ResultSet<T> { |
| private ImmutableList<T> items; |
| |
| public ListResultSet(List<T> r) { |
| items = ImmutableList.copyOf(r); |
| } |
| |
| @Override |
| public Iterator<T> iterator() { |
| return toList().iterator(); |
| } |
| |
| @Override |
| public ImmutableList<T> toList() { |
| if (items == null) { |
| throw new IllegalStateException("Results already obtained"); |
| } |
| ImmutableList<T> r = items; |
| items = null; |
| return r; |
| } |
| |
| @Override |
| public void close() { |
| items = null; |
| } |
| } |