/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* Licensed 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.seasar.extension.dataset.impl;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import org.seasar.extension.dataset.DataRow;
import org.seasar.extension.dataset.DataTable;
import org.seasar.extension.dataset.states.RowStates;
import org.seasar.extension.dataset.types.ColumnTypes;
import org.seasar.extension.jdbc.PropertyType;
import org.seasar.extension.jdbc.ResultSetHandler;
import org.seasar.extension.jdbc.impl.PropertyTypeUtil;
/**
* {@link DataTable}用の {@link ResultSetHandler}です。
*
* @author higa
*
*/
public class DataTableResultSetHandler implements ResultSetHandler {
private String tableName;
/**
* {@link DataTableResultSetHandler}を作成します。
*
* @param tableName
*/
public DataTableResultSetHandler(String tableName) {
this.tableName = tableName;
}
public Object handle(ResultSet rs) throws SQLException {
ResultSetMetaData rsmd = rs.getMetaData();
PropertyType[] propertyTypes = PropertyTypeUtil
.createPropertyTypes(rsmd);
DataTable table = new DataTableImpl(tableName);
for (int i = 0; i < propertyTypes.length; ++i) {
String columnName = propertyTypes[i].getColumnName();
table.addColumn(columnName, ColumnTypes.getColumnType(rsmd
.getColumnType(i + 1)));
}
DatabaseMetaData dbMetaData = rs.getStatement().getConnection()
.getMetaData();
table.setupMetaData(dbMetaData);
while (rs.next()) {
addRow(rs, propertyTypes, table);
}
return table;
}
private void addRow(ResultSet rs, PropertyType[] propertyTypes,
DataTable table) throws SQLException {
DataRow row = table.addRow();
for (int i = 0; i < propertyTypes.length; ++i) {
Object value = propertyTypes[i].getValueType().getValue(rs, i + 1);
row.setValue(propertyTypes[i].getColumnName(), value);
}
row.setState(RowStates.UNCHANGED);
}
}