001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.kernel.dao.shard;
016    
017    import java.util.concurrent.Callable;
018    
019    /**
020     * @author Alexander Chow
021     */
022    public abstract class ShardCallable<V> implements Callable<V> {
023    
024            public ShardCallable(long companyId) {
025                    _companyId = companyId;
026            }
027    
028            @Override
029            public V call() throws Exception {
030                    ShardUtil.pushCompanyService(_companyId);
031    
032                    try {
033                            return doCall();
034                    }
035                    finally {
036                            ShardUtil.popCompanyService();
037                    }
038            }
039    
040            protected abstract V doCall() throws Exception;
041    
042            private long _companyId;
043    
044    }