org.jumpmind.symmetric.db.db2.Db2zSeriesDbDialect Maven / Gradle / Ivy

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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.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jumpmind.symmetric.db.AbstractDbDialect;
import org.jumpmind.symmetric.db.BinaryEncoding;
import org.jumpmind.symmetric.db.IDbDialect;
import org.jumpmind.symmetric.db.SequenceIdentifier;
import org.jumpmind.symmetric.model.Trigger;
import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.ConnectionCallback;
import org.springframework.jdbc.core.PreparedStatementCallback;
import org.springframework.jdbc.support.JdbcUtils;

public class Db2zSeriesDbDialect extends AbstractDbDialect implements IDbDialect {

    static final Log logger = LogFactory.getLog(Db2zSeriesDbDialect.class);

    private String userName;

    /**
     * Returns the database user id
     * 
     * @return String
     */
    public String getUserName() {
        return userName;
    }

    /**
     * Sets the database user id from properties file
     * 
     * @param userName
     */
    public void setUserName(String userName) {
        this.userName = userName;
    }

    @Override
    protected boolean doesTriggerExistOnPlatform(String catalog, String schema, String tableName, String triggerName) {
        schema = schema == null ? (getDefaultSchema() == null ? null : getDefaultSchema()) : schema;
        return jdbcTemplate.queryForInt("SELECT COUNT(*) FROM SYSIBM.SYSTRIGGERS WHERE NAME = ?",
                new Object[] { triggerName.toUpperCase() }) > 0;
    }

    @Override
    public boolean isBlobSyncSupported() {
        return true;
    }

    @Override
    public boolean isClobSyncSupported() {
        return true;
    }

    @Override
    public BinaryEncoding getBinaryEncoding() {
        return BinaryEncoding.HEX;
    }

    @Override
    public String getTransactionTriggerExpression(String defaultCatalog, String defaultSchema, Trigger trigger) {
        return "nullif('','')";
    }

    @Override
    public String getSelectLastInsertIdSql(String sequenceName) {
        return "values IDENTITY_VAL_LOCAL()";
    }

    public boolean isNonBlankCharColumnSpacePadded() {
        return true;
    }

    public boolean isCharColumnSpaceTrimmed() {
        return false;
    }

    public boolean isEmptyStringNulled() {
        return false;
    }

    @Override
    public boolean storesUpperCaseNamesInCatalog() {
        return true;
    }

    @Override
    public boolean supportsGetGeneratedKeys() {
        return true;
    }

    @Override
    protected boolean allowsNullForIdentityColumn() {
        return false;
    }

    public void purge() {
    }

    public String getDefaultCatalog() {
        return null;
    }

    @Override
    public String getIdentifierQuoteString() {
        return "";
    }

    public void disableSyncTriggers(String nodeId) {
    }

    public void enableSyncTriggers() {
    }

    public String getSyncTriggersExpression() {
        return "";
    }

    @Override
    protected void initTablesAndFunctionsForSpecificDialect() {
    }
    
    @Override
    public long insertWithGeneratedKey(final String sql, final SequenceIdentifier sequenceId,
            final PreparedStatementCallback