/*
* Copyright 2002-2012 the original author or authors.
*
* 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.springframework.jdbc.core;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.List;
/**
* Generic utility methods for working with JDBC batch statements. Mainly for internal use
* within the framework.
*
* @author Thomas Risberg
*/
public abstract class BatchUpdateUtils {
public static int[] executeBatchUpdate(String sql, final List<Object[]> batchValues, final int[] columnTypes, JdbcOperations jdbcOperations) {
return jdbcOperations.batchUpdate(
sql,
new BatchPreparedStatementSetter() {
@Override
public void setValues(PreparedStatement ps, int i) throws SQLException {
Object[] values = batchValues.get(i);
setStatementParameters(values, ps, columnTypes);
}
@Override
public int getBatchSize() {
return batchValues.size();
}
});
}
protected static void setStatementParameters(Object[] values, PreparedStatement ps, int[] columnTypes) throws SQLException {
int colIndex = 0;
for (Object value : values) {
colIndex++;
if (value instanceof SqlParameterValue) {
SqlParameterValue paramValue = (SqlParameterValue) value;
StatementCreatorUtils.setParameterValue(ps, colIndex, paramValue, paramValue.getValue());
}
else {
int colType;
if (columnTypes == null || columnTypes.length < colIndex) {
colType = SqlTypeValue.TYPE_UNKNOWN;
}
else {
colType = columnTypes[colIndex - 1];
}
StatementCreatorUtils.setParameterValue(ps, colIndex, colType, value);
}
}
}
}