org.apache.hive.jdbc.HiveMetaDataResultSet Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.hive.jdbc;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public abstract class HiveMetaDataResultSet extends HiveBaseResultSet {
protected List data = Collections.emptyList();
public HiveMetaDataResultSet(final List columnNames, final List columnTypes,
final List data) throws SQLException {
if (data != null) {
this.data = new ArrayList(data);
}
if (columnTypes != null) {
this.columnTypes = new ArrayList(columnTypes);
} else {
this.columnTypes = Collections.emptyList();
}
if (columnNames != null) {
this.columnNames = new ArrayList(columnNames);
this.normalizedColumnNames = normalizeColumnNames(columnNames);
} else {
this.columnNames = Collections.emptyList();
this.normalizedColumnNames = Collections.emptyList();
}
}
private List normalizeColumnNames(final List columnNames) {
List result = new ArrayList(columnNames.size());
for (String colName : columnNames) {
result.add(colName.toLowerCase());
}
return result;
}
@Override
public void close() throws SQLException {
}
}