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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
* "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.qpid.server.store;
import java.util.Map;
import org.apache.qpid.server.model.ConfiguredObject;
/**
* MessageStore defines the interface to a storage area, which can be used to preserve the state of messages.
*
*/
public interface MessageStore
{
String STORE_TYPE = "storeType";
String STORE_PATH = "storePath";
String UNDERFULL_SIZE = "storeUnderfullSize";
String OVERFULL_SIZE = "storeOverfullSize";
/**
* Called after instantiation in order to open and initialize the message store. A particular implementation can define
* whatever parameters it wants.
* @param parent virtual host name
* @param messageStoreSettings store settings
*/
void openMessageStore(ConfiguredObject<?> parent, Map<String, Object> messageStoreSettings);
/**
* Called after opening to recover messages and transactions with given recovery handlers
* @param messageRecoveryHandler
* @param transactionLogRecoveryHandler
*/
void recoverMessageStore(MessageStoreRecoveryHandler messageRecoveryHandler, TransactionLogRecoveryHandler transactionLogRecoveryHandler);
public <T extends StorableMessageMetaData> StoredMessage<T> addMessage(T metaData);
/**
* Is this store capable of persisting the data
*
* @return true if this store is capable of persisting data
*/
boolean isPersistent();
Transaction newTransaction();
/**
* Called to close and cleanup any resources used by the message store.
*/
void closeMessageStore();
void addEventListener(EventListener eventListener, Event... events);
String getStoreLocation();
// TODO dead method - remove??
String getStoreType();
void onDelete();
}
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