org.apache.openjpa.persistence.jdbc.FetchDirection Maven / Gradle / Ivy
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* 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.openjpa.persistence.jdbc;
import java.sql.ResultSet;
/**
* The fetch direction to request when creating statements.
*
* @since 1.0.0
* @published
*/
public enum FetchDirection {
FORWARD(ResultSet.FETCH_FORWARD),
REVERSE(ResultSet.FETCH_REVERSE),
UNKNOWN(ResultSet.FETCH_UNKNOWN);
private final int resultSetConstant;
private FetchDirection(int value) {
resultSetConstant = value;
}
int toKernelConstant() {
return resultSetConstant;
}
static FetchDirection fromKernelConstant(int kernelConstant) {
switch (kernelConstant) {
case ResultSet.FETCH_FORWARD:
return FORWARD;
case ResultSet.FETCH_REVERSE:
return REVERSE;
case ResultSet.FETCH_UNKNOWN:
return UNKNOWN;
default:
throw new IllegalArgumentException(kernelConstant + "");
}
}
}