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Spring Integration JDBC Support
/*
* Copyright 2002-2016 the original author or authors.
*
* Licensed 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.springframework.integration.jdbc.store.channel;
/**
* @author Gunnar Hillert
* @author Artem Bilan
* @since 2.2
*/
public class PostgresChannelMessageStoreQueryProvider extends AbstractChannelMessageStoreQueryProvider {
@Override
public String getPollFromGroupExcludeIdsQuery() {
return "SELECT %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID, %PREFIX%CHANNEL_MESSAGE.MESSAGE_BYTES from %PREFIX%CHANNEL_MESSAGE " +
"where %PREFIX%CHANNEL_MESSAGE.GROUP_KEY = :group_key and %PREFIX%CHANNEL_MESSAGE.REGION = :region " +
"and %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID not in (:message_ids) order by CREATED_DATE, MESSAGE_SEQUENCE LIMIT 1 FOR UPDATE";
}
@Override
public String getPollFromGroupQuery() {
return "SELECT %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID, %PREFIX%CHANNEL_MESSAGE.MESSAGE_BYTES from %PREFIX%CHANNEL_MESSAGE " +
"where %PREFIX%CHANNEL_MESSAGE.GROUP_KEY = :group_key and %PREFIX%CHANNEL_MESSAGE.REGION = :region " +
"order by CREATED_DATE, MESSAGE_SEQUENCE LIMIT 1 FOR UPDATE";
}
@Override
public String getPriorityPollFromGroupExcludeIdsQuery() {
return "SELECT %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID, %PREFIX%CHANNEL_MESSAGE.MESSAGE_BYTES from %PREFIX%CHANNEL_MESSAGE " +
"where %PREFIX%CHANNEL_MESSAGE.GROUP_KEY = :group_key and %PREFIX%CHANNEL_MESSAGE.REGION = :region " +
"and %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID not in (:message_ids) " +
"order by MESSAGE_PRIORITY DESC NULLS LAST, CREATED_DATE, MESSAGE_SEQUENCE LIMIT 1 FOR UPDATE";
}
@Override
public String getPriorityPollFromGroupQuery() {
return "SELECT %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID, %PREFIX%CHANNEL_MESSAGE.MESSAGE_BYTES from %PREFIX%CHANNEL_MESSAGE " +
"where %PREFIX%CHANNEL_MESSAGE.GROUP_KEY = :group_key and %PREFIX%CHANNEL_MESSAGE.REGION = :region " +
"order by MESSAGE_PRIORITY DESC NULLS LAST, CREATED_DATE, MESSAGE_SEQUENCE LIMIT 1 FOR UPDATE";
}
}