DB2Statements.java

/*
 * ModeShape (http://www.modeshape.org)
 *
 * 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 org.modeshape.persistence.relational;

import java.sql.Connection;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

/**
 * Statements specialization for DB2.
 */
public class DB2Statements extends DefaultStatements {

    private static final List<Integer> IGNORABLE_ERROR_CODES = Arrays.asList(-601, -204);

    protected DB2Statements( RelationalDbConfig config, Map<String, String> statements ) {
        super(config, statements);
    }

    @Override
    public Void createTable( Connection connection ) throws SQLException {
        try {
            return super.createTable(connection);
        } catch (SQLException e) {
            int errorCode = e.getErrorCode();
            if (IGNORABLE_ERROR_CODES.contains(errorCode)) {
                logger.debug(e, "Ignoring DB2 SQL exception for database {0} with error code {1}", tableName(), errorCode);
                return null;
            }
            throw e;
        }
    }

    @Override
    public Void dropTable( Connection connection ) throws SQLException {
        try {
            return super.dropTable(connection);
        } catch (SQLException e) {
            int errorCode = e.getErrorCode();
            if (IGNORABLE_ERROR_CODES.contains(e.getErrorCode())) {
                logger.debug(e, "Ignoring DB2 SQL exception for database {0} with error code {1}", tableName(), errorCode);
                return null;
            }
            throw e;
        }
    }
}