UpdateOperation.java
- /*
- *
- * The DbUnit Database Testing Framework
- * Copyright (C)2002-2004, DbUnit.org
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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 library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
- package org.dbunit.operation;
- import java.util.ArrayList;
- import java.util.BitSet;
- import java.util.List;
- import org.dbunit.database.IDatabaseConnection;
- import org.dbunit.dataset.Column;
- import org.dbunit.dataset.Columns;
- import org.dbunit.dataset.DataSetException;
- import org.dbunit.dataset.ITableMetaData;
- import org.dbunit.dataset.NoPrimaryKeyException;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
- /**
- * Updates the database from the dataset contents. This operation assumes that
- * table data already exists in the database and fails if this is not the case.
- * @author Manuel Laflamme
- * @version $Revision$
- * @since Feb 19, 2002
- */
- public class UpdateOperation extends AbstractBatchOperation
- {
- /**
- * Logger for this class
- */
- private static final Logger logger = LoggerFactory.getLogger(UpdateOperation.class);
- UpdateOperation()
- {
- }
- ////////////////////////////////////////////////////////////////////////////
- // AbstractBatchOperation class
- public OperationData getOperationData(ITableMetaData metaData, BitSet ignoreMapping, IDatabaseConnection connection) throws DataSetException
- {
- if(logger.isDebugEnabled())
- logger.debug("getOperationData(metaData={}, ignoreMapping={}, connection={}) - start",
- new Object[]{metaData, ignoreMapping, connection});
- Column[] columns = metaData.getColumns();
- Column[] primaryKeys = metaData.getPrimaryKeys();
- // cannot construct where clause if no primary key
- if (primaryKeys.length == 0)
- {
- throw new NoPrimaryKeyException(metaData.getTableName());
- }
- // update table
- final StringBuilder sqlBuffer = new StringBuilder(128);
- sqlBuffer.append("update ");
- sqlBuffer.append(getQualifiedName(connection.getSchema(),
- metaData.getTableName(), connection));
- // set
- boolean firstSet = true;
- List columnList = new ArrayList(columns.length);
- sqlBuffer.append(" set ");
- for (int i = 0; i < columns.length; i++)
- {
- Column column = columns[i];
- // set if not primary key
- if (Columns.getColumn(column.getColumnName(), primaryKeys) == null)
- {
- if (!firstSet)
- {
- sqlBuffer.append(", ");
- }
- firstSet = false;
- // escape column name
- String columnName = getQualifiedName(null,
- column.getColumnName(), connection);
- sqlBuffer.append(columnName);
- sqlBuffer.append(" = ?");
- columnList.add(column);
- }
- }
- // where
- sqlBuffer.append(" where ");
- for (int i = 0; i < primaryKeys.length; i++)
- {
- Column column = primaryKeys[i];
- if (i > 0)
- {
- sqlBuffer.append(" and ");
- }
- // escape column name
- String columnName = getQualifiedName(null,
- column.getColumnName(), connection);
- sqlBuffer.append(columnName);
- sqlBuffer.append(" = ?");
- columnList.add(column);
- }
- return new OperationData(sqlBuffer.toString(),
- (Column[])columnList.toArray(new Column[0]));
- }
- }