org.jooq.exception.TooManyRowsException Maven / Gradle / Ivy
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* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
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package org.jooq.exception;
import java.sql.ResultSet;
import org.jooq.InsertResultStep;
import org.jooq.ResultQuery;
/**
* Too many rows (more than 1) were returned from a {@link ResultQuery}.
*
* Like any other {@link InvalidResultException}, this exception indicates to
* clients that the result was not what they expected, but this does not have
* any effect on the outcome of the statement producing that result. For
* instance, if calling {@link ResultQuery#fetchOne()} on a
* SELECT … FOR UPDATE query, or
* {@link InsertResultStep#fetchOne()} on an INSERT statement, the
* database change will still be executed: the rows will still be locked or
* inserted.
*
* Performance
*
* Methods throwing {@link TooManyRowsException} need to retrieve at most two
* records from the underlying JDBC {@link ResultSet}, which, depending on the
* {@link java.sql.Statement#getFetchSize()} /
* {@link ResultQuery#fetchSize(int)}, might incur additional database
* roundtrips. If this causes problems, {@link ResultQuery#fetchAny()} may be
* preferred.
*
* @author Lukas Eder
*/
public class TooManyRowsException extends InvalidResultException {
/**
* Constructor for TooManyRowsException.
*/
public TooManyRowsException() {
super(null);
}
/**
* Constructor for TooManyRowsException.
*
* @param message the detail message
*/
public TooManyRowsException(String message) {
super(message);
}
}