CompositeTable.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.dataset;
import java.util.Arrays;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author Manuel Laflamme
* @version $Revision$
* @since Feb 17, 2002
*/
public class CompositeTable extends AbstractTable {
/**
* Logger for this class
*/
private static final Logger logger =
LoggerFactory.getLogger(CompositeTable.class);
private final ITableMetaData _metaData;
private final ITable[] _tables;
/**
* Creates a composite table that combines the specified metadata with the
* specified table.
*/
public CompositeTable(ITableMetaData metaData, ITable table) {
_metaData = metaData;
_tables = new ITable[] {table};
}
/**
* Creates a composite table that combines the specified metadata with the
* specified tables.
*/
public CompositeTable(ITableMetaData metaData, ITable[] tables) {
_metaData = metaData;
_tables = tables;
}
/**
* Creates a composite table that combines the specified specified tables.
* The metadata from the first table is used as metadata for the new table.
*/
public CompositeTable(ITable table1, ITable table2) {
_metaData = table1.getTableMetaData();
_tables = new ITable[] {table1, table2};
}
/**
* Creates a composite dataset that encapsulate the specified table with a
* new name.
*/
public CompositeTable(String newName, ITable table) throws DataSetException {
ITableMetaData metaData = table.getTableMetaData();
_metaData =
new DefaultTableMetaData(newName, metaData.getColumns(),
metaData.getPrimaryKeys());
_tables = new ITable[] {table};
}
// //////////////////////////////////////////////////////////////////////////
// ITable interface
public ITableMetaData getTableMetaData() {
return _metaData;
}
public int getRowCount() {
logger.debug("getRowCount() - start");
int totalCount = 0;
for (int i = 0; i < _tables.length; i++) {
ITable table = _tables[i];
totalCount += table.getRowCount();
}
return totalCount;
}
public Object getValue(int row, String columnName) throws DataSetException {
if (logger.isDebugEnabled()) {
logger.debug("getValue(row={}, columnName={}) - start", Integer
.toString(row), columnName);
}
if (row < 0) {
throw new RowOutOfBoundsException(row + " < 0 ");
}
int totalCount = 0;
for (int i = 0; i < _tables.length; i++) {
ITable table = _tables[i];
int count = table.getRowCount();
if (totalCount + count > row) {
return table.getValue(row - totalCount, columnName);
}
totalCount += count;
}
throw new RowOutOfBoundsException(row + " > " + totalCount);
}
/**
* {@inheritDoc}
*/
public String toString() {
StringBuilder sb = new StringBuilder(2000);
sb.append(getClass().getName()).append("[");
sb.append("_metaData=[").append(_metaData).append("], ");
sb.append("_tables=[").append(Arrays.toString(_tables)).append("]");
sb.append("]");
return sb.toString();
}
}