com.jn.sqlhelper.dialect.internal.TimesTenDialect 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;
import com.jn.sqlhelper.dialect.internal.limit.FirstLimitHandler;
public class TimesTenDialect extends AbstractDialect {
public TimesTenDialect() {
super();
setLimitHandler(new FirstLimitHandler() {
@Override
public String getLimitString(String querySelect,boolean isSubquery, boolean useLimitVariable, long offset, int limit) {
if (offset > 0) {
throw new UnsupportedOperationException("query result offset is not supported");
}
return new StringBuilder(querySelect.length() + 8).append(querySelect).insert(6, " first " + limit).toString();
}
});
}
@Override
public boolean isSupportsLimitOffset() {
return false;
}
@Override
public boolean isSupportsVariableLimit() {
return false;
}
@Override
public boolean isSupportsLimit() {
return true;
}
@Override
public boolean isUseMaxForLimit() {
return true;
}
}