org.apache.karaf.main.lock.SQLServerJDBCLock Maven / Gradle / Ivy

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This bundle is the main Karaf launcher. It's responsible of the Karaf startup including the console, branding, etc bootstrap.

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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.karaf.main.lock;

import org.apache.felix.utils.properties.Properties;

/**
 * Represents an exclusive lock on a database,
 * used to avoid multiple Karaf instances attempting
 * to become master.
 */
public class SQLServerJDBCLock extends DefaultJDBCLock {

    public SQLServerJDBCLock(Properties properties) {
        super(properties);
    }

    @Override
    Statements createStatements() {
        Statements statements = new MsSQLServerStatements();
        return statements;
    }

    private class MsSQLServerStatements extends Statements {

        @Override
        public String getLockCreateStatement() {
            return "SELECT * FROM " + getFullLockTableName();
        }

    }

}