| /* |
| * 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.Collections; |
| import java.util.List; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.internal.util.lang.GridCloseableIterator; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Convenience adapter for {@link GridQueryFieldsResult}. |
| */ |
| public class GridQueryFieldsResultAdapter implements GridQueryFieldsResult { |
| /** Meta data. */ |
| private final List<GridQueryFieldMetadata> metaData; |
| |
| /** Result iterator. */ |
| private final GridCloseableIterator<List<?>> it; |
| |
| /** |
| * Creates query field result composed of field metadata and iterator |
| * over queried fields. |
| * |
| * @param metaData Meta data. |
| * @param it Result iterator. |
| */ |
| public GridQueryFieldsResultAdapter(@Nullable List<GridQueryFieldMetadata> metaData, |
| GridCloseableIterator<List<?>> it) { |
| this.metaData = metaData != null ? Collections.unmodifiableList(metaData) : null; |
| this.it = it; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public List<GridQueryFieldMetadata> metaData() { |
| return metaData; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public GridCloseableIterator<List<?>> iterator() throws IgniteCheckedException{ |
| return it; |
| } |
| } |