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SymmetricDS is an open source database synchronization solution. It is platform-independent, web-enabled, and database-agnostic. SymmetricDS was first built to replicate changes between 'retail store' databases and ad centralized 'corporate' database.

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/*
 * Licensed to JumpMind Inc under one or more contributor 
 * license agreements.  See the NOTICE file distributed
 * with this work for additional information regarding 
 * copyright ownership.  JumpMind Inc licenses this file
 * to you under the GNU Lesser General Public License (the
 * "License"); you may not use this file except in compliance
 * with the License. 
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see           
 * .
 * 
 * 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.jumpmind.symmetric.db.db2;

import java.net.URL;

import org.jumpmind.symmetric.db.IDbDialect;
import org.jumpmind.symmetric.db.SqlScript;

/**
 * ,
 */
public class Db2v9DbDialect extends Db2DbDialect implements IDbDialect {

    static final String SYNC_TRIGGERS_DISABLED_USER_VARIABLE = "sync_triggers_disabled";

    static final String SYNC_TRIGGERS_DISABLED_NODE_VARIABLE = "sync_node_disabled";

    @Override
    protected void initTablesAndFunctionsForSpecificDialect() {
        try {
            enableSyncTriggers();
        } catch (Exception e) {
            try {
                log.info("EnvironmentVariablesCreating", SYNC_TRIGGERS_DISABLED_USER_VARIABLE,
                        SYNC_TRIGGERS_DISABLED_NODE_VARIABLE);
                new SqlScript(getSqlScriptUrl(), getPlatform().getDataSource(), ";").execute();
            } catch (Exception ex) {
                log.error("DB2DialectInitializingError", ex);
            }
        }
    }
    
    private URL getSqlScriptUrl() {
        return getClass().getResource("/org/jumpmind/symmetric/db/db2.sql");
    }

    public void disableSyncTriggers(String nodeId) {
        jdbcTemplate.update("set " + SYNC_TRIGGERS_DISABLED_USER_VARIABLE + "=1");
        if (nodeId != null) {
            jdbcTemplate.update("set " + SYNC_TRIGGERS_DISABLED_NODE_VARIABLE + "='" + nodeId + "'");
        }
    }

    public void enableSyncTriggers() {
        jdbcTemplate.update("set " + SYNC_TRIGGERS_DISABLED_USER_VARIABLE + "=null");
        jdbcTemplate.update("set " + SYNC_TRIGGERS_DISABLED_NODE_VARIABLE + "=null");
    }

    public String getSyncTriggersExpression() {
        return SYNC_TRIGGERS_DISABLED_USER_VARIABLE + " is null";
    }
    
    @Override
    public String getSourceNodeExpression() {
        return SYNC_TRIGGERS_DISABLED_NODE_VARIABLE;
    }
    
}