com.jn.sqlhelper.dialect.internal.limit.LegacyFirstLimitHandler Maven / Gradle / Ivy
/*
* Copyright 2019 the original author or authors.
*
* Licensed under the LGPL, Version 3.0 (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.gnu.org/licenses/lgpl-3.0.html
*
* 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 com.jn.sqlhelper.dialect.internal.limit;
import com.jn.sqlhelper.dialect.pagination.RowSelection;
import java.util.Locale;
public class LegacyFirstLimitHandler extends AbstractLimitHandler {
public static final LegacyFirstLimitHandler INSTANCE = new LegacyFirstLimitHandler();
@Override
public String processSql(String sql, boolean isSubquery, boolean useLimitVariable, RowSelection selection) {
return new StringBuilder(sql.length() + 16).append(sql).insert(sql.toLowerCase(Locale.ROOT).indexOf("select") + 6, " first " + getMaxOrLimit(selection)).toString();
}
}