space.lingu.light.util.ResultSetUtil Maven / Gradle / Ivy
/*
* Copyright (C) 2022 Lingu Light Project
*
* 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 space.lingu.light.util;
import space.lingu.light.LightRuntimeException;
import space.lingu.light.sql.SQLEscaper;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* {@link ResultSet} utility methods
*
* @author RollW
*/
public final class ResultSetUtil {
public static int getColumnIndexOrThrow(ResultSet set, String name) {
try {
int index = getColumnIndex(set, name);
if (index >= 0) return index;
} catch (SQLException e) {
throw new LightRuntimeException(e);
}
throw new LightRuntimeException(
new IllegalArgumentException("column '" + name + "' does not exist."));
}
public static int getColumnIndex(ResultSet set, String name) throws SQLException {
int index = set.findColumn(name);
if (index >= 0) {
return index;
}
index = set.findColumn("`" + name + "`");
return index;
}
public static int getColumnIndex(ResultSet set, String name,
SQLEscaper escaper) throws SQLException {
int index = set.findColumn(name);
if (index >= 0) {
return index;
}
index = set.findColumn(escaper.escapeParam(name));
return index;
}
public static int getColumnIndexSwallow(ResultSet set, String name) {
try {
int index = getColumnIndex(set, name);
if (index >= 0) {
return index;
}
} catch (SQLException ignored) {
// swallow exception
}
return -1;
}
public static int getColumnIndexSwallow(ResultSet set, String name,
SQLEscaper escaper) {
try {
int index = getColumnIndex(set, name, escaper);
if (index >= 0) {
return index;
}
} catch (SQLException ignored) {
// swallow exception
}
return -1;
}
private ResultSetUtil() {
}
}