com.hazelcast.multimap.impl.operations.DeleteOperation Maven / Gradle / Ivy

/*
 * Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
 *
 * 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 com.hazelcast.multimap.impl.operations;

import com.hazelcast.multimap.impl.MultiMapContainer;
import com.hazelcast.multimap.impl.MultiMapDataSerializerHook;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.Operation;


public class DeleteOperation extends AbstractBackupAwareMultiMapOperation {

    private transient boolean shouldBackup;

    public DeleteOperation() {
    }

    public DeleteOperation(String name, Data dataKey, long threadId) {
        super(name, dataKey, threadId);
    }

    @Override
    public void run() throws Exception {
        MultiMapContainer container = getOrCreateContainer();
        if (container.delete(dataKey)) {
            container.update();
        }
        shouldBackup = true;
    }

    @Override
    public Operation getBackupOperation() {
        return new DeleteBackupOperation(name, dataKey);
    }

    @Override
    public boolean shouldWait() {
        MultiMapContainer container = getOrCreateContainer();
        if (container.isTransactionallyLocked(dataKey)) {
            return !container.canAcquireLock(dataKey, getCallerUuid(), threadId);
        }
        return false;
    }

    @Override
    public boolean shouldBackup() {
        return shouldBackup;
    }

    @Override
    public void onWaitExpire() {
        sendResponse(false);
    }

    @Override
    public int getId() {
        return MultiMapDataSerializerHook.DELETE;
    }
}