| /** |
| * 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.metamodel.couchdb; |
| |
| import java.util.List; |
| |
| import org.ektorp.CouchDbConnector; |
| import org.apache.metamodel.MetaModelException; |
| import org.apache.metamodel.data.DataSet; |
| import org.apache.metamodel.data.Row; |
| import org.apache.metamodel.delete.AbstractRowDeletionBuilder; |
| import org.apache.metamodel.query.FilterItem; |
| import org.apache.metamodel.schema.Table; |
| |
| final class CouchDbRowDeletionBuilder extends AbstractRowDeletionBuilder { |
| |
| private final CouchDbUpdateCallback _updateCallback; |
| |
| public CouchDbRowDeletionBuilder(CouchDbUpdateCallback updateCallback, Table table) { |
| super(table); |
| _updateCallback = updateCallback; |
| } |
| |
| @Override |
| public void execute() throws MetaModelException { |
| Table table = getTable(); |
| List<FilterItem> whereItems = getWhereItems(); |
| |
| CouchDbConnector connector = _updateCallback.getConnector(table.getName()); |
| CouchDbDataContext dataContext = _updateCallback.getDataContext(); |
| |
| DataSet dataSet = dataContext.query().from(table) |
| .select(CouchDbDataContext.FIELD_ID, CouchDbDataContext.FIELD_REV).where(whereItems).execute(); |
| try { |
| while (dataSet.next()) { |
| Row row = dataSet.getRow(); |
| String id = (String) row.getValue(0); |
| String revision = (String) row.getValue(1); |
| connector.delete(id, revision); |
| } |
| } finally { |
| dataSet.close(); |
| } |
| } |
| |
| } |