content: /*****************************************************************
   *   Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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
   *
   *    https://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.apache.cayenne.test.jdbc;
  
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.SQLException;
  import java.util.Collection;
  
  class UpdateTemplate {
  
  	DBHelper parent;
  
  	public UpdateTemplate(DBHelper parent) {
  		this.parent = parent;
  	}
  
  	protected void bindParameters(PreparedStatement statement, Collection<Object> bindings,
  			Collection<Integer> bindingTypes) throws SQLException {
  
  		if (bindings != null && !bindings.isEmpty()) {
  
  			Object[] values = bindings.toArray();
  			Integer[] types = bindingTypes.toArray(new Integer[bindingTypes.size()]);
  
  			for (int i = 0; i < values.length; i++) {
  
  				if (values[i] == null) {
  					if (types[i] != SQLBuilder.NO_TYPE) {
  						statement.setNull(i + 1, types[i]);
  					} else {
  						throw new IllegalStateException("No type information for null value at index " + i);
  					}
  				} else {
  					if (types[i] != SQLBuilder.NO_TYPE) {
  						statement.setObject(i + 1, values[i], types[i]);
  					} else {
  						statement.setObject(i + 1, values[i]);
  					}
  				}
  			}
  		}
  	}
  
  	int execute(String sql, Collection<Object> bindings, Collection<Integer> bindingTypes) throws SQLException {
  		UtilityLogger.log(sql);
  
  		try (Connection c = parent.getConnection();) {
  
  			int count;
  			try (PreparedStatement st = c.prepareStatement(sql);) {
  				bindParameters(st, bindings, bindingTypes);
  				count = st.executeUpdate();
  			}
  
  			c.commit();
  			return count;
  		}
  	}
  }
  