org.apache.metamodel.mongodb.mongo2.MongoDbDeleteBuilder Maven / Gradle / Ivy
/**
* 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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package org.apache.metamodel.mongodb.mongo2;
import org.apache.metamodel.MetaModelException;
import org.apache.metamodel.delete.AbstractRowDeletionBuilder;
import org.apache.metamodel.schema.Table;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.mongodb.BasicDBObject;
import com.mongodb.DBCollection;
import com.mongodb.WriteConcern;
import com.mongodb.WriteResult;
final class MongoDbDeleteBuilder extends AbstractRowDeletionBuilder {
private static final Logger logger = LoggerFactory.getLogger(MongoDbDeleteBuilder.class);
private final MongoDbUpdateCallback _updateCallback;
public MongoDbDeleteBuilder(MongoDbUpdateCallback updateCallback, Table table) {
super(table);
_updateCallback = updateCallback;
}
@Override
public void execute() throws MetaModelException {
final DBCollection collection = _updateCallback.getCollection(getTable().getName());
final MongoDbDataContext dataContext = _updateCallback.getDataContext();
final BasicDBObject query = dataContext.createMongoDbQuery(getTable(), getWhereItems());
WriteConcern writeConcern = _updateCallback.getWriteConcernAdvisor().adviceDeleteQuery(collection, query);
final WriteResult writeResult = collection.remove(query, writeConcern);
logger.info("Remove returned result: {}", writeResult);
}
}