
org.eobjects.metamodel.couchdb.CouchDbRowDeletionBuilder Maven / Gradle / Ivy
/**
* eobjects.org MetaModel
* Copyright (C) 2010 eobjects.org
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.eobjects.metamodel.couchdb;
import java.util.List;
import org.ektorp.CouchDbConnector;
import org.eobjects.metamodel.MetaModelException;
import org.eobjects.metamodel.data.DataSet;
import org.eobjects.metamodel.data.Row;
import org.eobjects.metamodel.delete.AbstractRowDeletionBuilder;
import org.eobjects.metamodel.query.FilterItem;
import org.eobjects.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 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();
}
}
}
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