| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.ignite.internal.util; |
| |
| import java.lang.ref.ReferenceQueue; |
| import java.lang.ref.WeakReference; |
| import java.util.Iterator; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.internal.util.lang.GridCloseableIterator; |
| |
| /** |
| * Weak iterator. |
| */ |
| public class GridWeakIterator<T> extends WeakReference<Iterator<T>> { |
| /** Nested closeable iterator. */ |
| private final GridCloseableIterator<T> it; |
| |
| /** |
| * @param ref Referent. |
| * @param it Closeable iterator. |
| * @param q Referent queue. |
| */ |
| public GridWeakIterator(Iterator<T> ref, GridCloseableIterator<T> it, |
| ReferenceQueue<Iterator<T>> q) { |
| super(ref, q); |
| |
| assert it != null; |
| |
| this.it = it; |
| } |
| |
| /** |
| * Closes iterator. |
| * |
| * @throws IgniteCheckedException If failed. |
| */ |
| public void close() throws IgniteCheckedException { |
| it.close(); |
| } |
| } |