| /* |
| * 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.processors.query; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import javax.cache.Cache; |
| import javax.cache.CacheException; |
| import org.apache.ignite.internal.processors.cache.CacheEntryImpl; |
| |
| /** |
| * SqlQuery key-value iterator. |
| */ |
| public class QueryKeyValueIterator<K, V> implements Iterator<Cache.Entry<K, V>> { |
| /** Target iterator. */ |
| private final Iterator<List<?>> iter; |
| |
| /** |
| * Constructor. |
| * |
| * @param iter Target iterator. |
| */ |
| public QueryKeyValueIterator(Iterator<List<?>> iter) { |
| this.iter = iter; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean hasNext() { |
| return iter.hasNext(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public Cache.Entry<K, V> next() { |
| try { |
| List<?> row = iter.next(); |
| |
| return new CacheEntryImpl<>((K)row.get(0), (V)row.get(1)); |
| } |
| catch (CacheException e) { |
| throw e; |
| } |
| catch (Exception e) { |
| throw new CacheException(e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void remove() { |
| throw new UnsupportedOperationException(); |
| } |
| } |