/*
* 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
* "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 org.apache.openjpa.kernel;
import org.apache.openjpa.conf.OpenJPAConfiguration;
/**
* Constants for determining when to flush before queries.
*
* @author Abe White
* @since 0.4.0
*/
public interface QueryFlushModes {
/**
* Constant denoting that queries should flush data to the
* database automatically whenever OpenJPA determines that relevant
* modifications have been made and IgnoreCache is
* <code>false</code>. See
* {@link OpenJPAConfiguration#getFlushBeforeQueries}
* for more info.
*/
public static final int FLUSH_TRUE = 0;
/**
* Constant denoting that queries should never flush data
* to the database automatically before executing a query, but
* should instead execute queries in-memory if necessary. See
* {@link OpenJPAConfiguration#getFlushBeforeQueries} for more info.
*/
public static final int FLUSH_FALSE = 1;
/**
* Constant denoting that queries should flush data to the
* database automatically when OpenJPA determines that relevant
* modifications have been made and the current
* context already has a dedicated connection. See
* {@link OpenJPAConfiguration#getFlushBeforeQueries} for more info.
*/
public static final int FLUSH_WITH_CONNECTION = 2;
}