/*
* SchemaCrawler
* Copyright (c) 2000-2013, Sualeh Fatehi.
*
* 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 schemacrawler.test;
import static org.junit.Assert.assertNotNull;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.junit.Test;
import schemacrawler.schema.ResultsColumn;
import schemacrawler.schema.ResultsColumns;
import schemacrawler.test.utility.BaseDatabaseTest;
import schemacrawler.test.utility.TestUtility;
import schemacrawler.test.utility.TestWriter;
import schemacrawler.utility.SchemaCrawlerUtility;
public class ResultColumnsTest
extends BaseDatabaseTest
{
private static final Logger LOGGER = Logger.getLogger(ResultColumnsTest.class
.getName());
@Test
public void columns()
throws Exception
{
final TestWriter out = new TestWriter();
final String sql = ""
+ "SELECT "
+ " PUBLIC.BOOKS.BOOKS.TITLE AS BOOK, "
+ " PUBLIC.BOOKS.AUTHORS.FIRSTNAME + ' ' + PUBLIC.BOOKS.AUTHORS.LASTNAME, "
+ " PUBLIC.BOOKS.BOOKS.PRICE "
+ "FROM "
+ " PUBLIC.BOOKS.BOOKS "
+ " INNER JOIN PUBLIC.BOOKS.BOOKAUTHORS "
+ " ON PUBLIC.BOOKS.BOOKS.ID = PUBLIC.BOOKS.BOOKAUTHORS.BOOKID "
+ " INNER JOIN PUBLIC.BOOKS.AUTHORS "
+ " ON PUBLIC.BOOKS.AUTHORS.ID = PUBLIC.BOOKS.BOOKAUTHORS.AUTHORID ";
try (final Connection connection = getConnection();
final Statement statement = connection.createStatement();
final ResultSet resultSet = statement.executeQuery(sql);)
{
final ResultsColumns resultColumns = SchemaCrawlerUtility
.getResultColumns(resultSet);
assertNotNull("Could not obtain result columns", resultColumns);
final ResultsColumn[] columns = resultColumns.getColumns()
.toArray(new ResultsColumn[0]);
for (int columnIdx = 0; columnIdx < columns.length; columnIdx++)
{
final ResultsColumn column = columns[columnIdx];
LOGGER.log(Level.FINE, column.toString());
out.println("column: " + column.getFullName());
out.println(" database type: "
+ column.getColumnDataType().getDatabaseSpecificTypeName());
out.println(" type: " + column.getColumnDataType().getTypeName());
}
}
out.close();
out.assertEquals(TestUtility.currentMethodFullName());
;
}
}