Package org.springframework.jdbc.core.simple

Source Code of org.springframework.jdbc.core.simple.SimpleJdbcTemplate

/*
* Copyright 2002-2009 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.simple;

import java.util.List;
import java.util.Map;

import javax.sql.DataSource;

import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.JdbcOperations;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.BatchUpdateUtils;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcOperations;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.jdbc.core.namedparam.SqlParameterSource;
import org.springframework.util.ObjectUtils;

/**
* Java-5-based convenience wrapper for the classic Spring
* {@link org.springframework.jdbc.core.JdbcTemplate},
* taking advantage of varargs and autoboxing, and exposing only the most
* commonly required operations in order to simplify JdbcTemplate usage.
*
* <p>Use the {@link #getJdbcOperations()} method (or a straight JdbcTemplate)
* if you need to invoke less commonly used template methods. This includes
* any methods specifying SQL types, methods using less commonly used callbacks
* such as RowCallbackHandler, updates with PreparedStatementSetters rather than
* argument arrays, and stored procedures as well as batch operations.
*
* @author Rod Johnson
* @author Rob Harrop
* @author Juergen Hoeller
* @author Thomas Risberg
* @since 2.0
* @see ParameterizedRowMapper
* @see SimpleJdbcDaoSupport
* @see org.springframework.jdbc.core.JdbcTemplate
* @deprecated since Spring 3.1 in favor of {@link org.springframework.jdbc.core.JdbcTemplate} and
* {@link org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate}. The JdbcTemplate and
* NamedParameterJdbcTemplate now provide all the functionality of the SimpleJdbcTemplate.
*/
@Deprecated
public class SimpleJdbcTemplate implements SimpleJdbcOperations {
 
  /** The NamedParameterJdbcTemplate that we are wrapping */
  private final NamedParameterJdbcOperations namedParameterJdbcOperations;


  /**
   * Create a new SimpleJdbcTemplate for the given DataSource.
   * <p>Creates a classic Spring JdbcTemplate and wraps it.
   * @param dataSource the JDBC DataSource to access
   */
  public SimpleJdbcTemplate(DataSource dataSource) {
    this.namedParameterJdbcOperations = new NamedParameterJdbcTemplate(dataSource);
  }

  /**
   * Create a new SimpleJdbcTemplate for the given classic Spring JdbcTemplate.
   * @param classicJdbcTemplate the classic Spring JdbcTemplate to wrap
   */
  public SimpleJdbcTemplate(JdbcOperations classicJdbcTemplate) {
    this.namedParameterJdbcOperations = new NamedParameterJdbcTemplate(classicJdbcTemplate);
  }

  /**
   * Create a new SimpleJdbcTemplate for the given Spring NamedParameterJdbcTemplate.
   * @param namedParameterJdbcTemplate the Spring NamedParameterJdbcTemplate to wrap
   */
  public SimpleJdbcTemplate(NamedParameterJdbcOperations namedParameterJdbcTemplate) {
    this.namedParameterJdbcOperations = namedParameterJdbcTemplate;
  }


  /**
   * Expose the classic Spring JdbcTemplate to allow invocation of
   * less commonly used methods.
   */
  public JdbcOperations getJdbcOperations() {
    return this.namedParameterJdbcOperations.getJdbcOperations();
  }

  /**
   * Expose the Spring NamedParameterJdbcTemplate to allow invocation of
   * less commonly used methods.
   */
  public NamedParameterJdbcOperations getNamedParameterJdbcOperations() {
    return this.namedParameterJdbcOperations;
  }


  public int queryForInt(String sql, Map<String, ?> args) throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForInt(sql, args);
  }

  public int queryForInt(String sql, SqlParameterSource args) throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForInt(sql, args);
  }

  public int queryForInt(String sql, Object... args) throws DataAccessException {
    return (ObjectUtils.isEmpty(args) ?
          getJdbcOperations().queryForInt(sql) :
          getJdbcOperations().queryForInt(sql, getArguments(args)));
  }

  public long queryForLong(String sql, Map<String, ?> args) throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForLong(sql, args);
  }

  public long queryForLong(String sql, SqlParameterSource args) throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForLong(sql, args);
  }

  public long queryForLong(String sql, Object... args) throws DataAccessException {
    return (ObjectUtils.isEmpty(args) ?
          getJdbcOperations().queryForLong(sql) :
          getJdbcOperations().queryForLong(sql, getArguments(args)));
  }

  public <T> T queryForObject(String sql, Class<T> requiredType, Map<String, ?> args) throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForObject(sql, args, requiredType);
  }

  public <T> T queryForObject(String sql, Class<T> requiredType, SqlParameterSource args)
      throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForObject(sql, args, requiredType);
  }

  public <T> T queryForObject(String sql, Class<T> requiredType, Object... args) throws DataAccessException {
    return (ObjectUtils.isEmpty(args) ?
        getJdbcOperations().queryForObject(sql, requiredType) :
        getJdbcOperations().queryForObject(sql, getArguments(args), requiredType));
  }

  public <T> T queryForObject(String sql, RowMapper<T> rm, Map<String, ?> args) throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForObject(sql, args, rm);
  }

  @Deprecated
  public <T> T queryForObject(String sql, ParameterizedRowMapper<T> rm, Map<String, ?> args) throws DataAccessException {
    return queryForObject(sql, (RowMapper<T>) rm, args);
  }

  public <T> T queryForObject(String sql, RowMapper<T> rm, SqlParameterSource args)
      throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForObject(sql, args, rm);
  }

  @Deprecated
  public <T> T queryForObject(String sql, ParameterizedRowMapper<T> rm, SqlParameterSource args)
      throws DataAccessException {
    return queryForObject(sql, (RowMapper<T>) rm, args);
  }

  public <T> T queryForObject(String sql, RowMapper<T> rm, Object... args) throws DataAccessException {
    return (ObjectUtils.isEmpty(args) ?
        getJdbcOperations().queryForObject(sql, rm):
        getJdbcOperations().queryForObject(sql, getArguments(args), rm));
  }

  @Deprecated
  public <T> T queryForObject(String sql, ParameterizedRowMapper<T> rm, Object... args) throws DataAccessException {
    return queryForObject(sql, (RowMapper<T>) rm, args);
  }

  public <T> List<T> query(String sql, RowMapper<T> rm, Map<String, ?> args) throws DataAccessException {
    return getNamedParameterJdbcOperations().query(sql, args, rm);
  }

  @Deprecated
  public <T> List<T> query(String sql, ParameterizedRowMapper<T> rm, Map<String, ?> args) throws DataAccessException {
    return query(sql, (RowMapper<T>) rm, args);
  }

  public <T> List<T> query(String sql, RowMapper<T> rm, SqlParameterSource args)
      throws DataAccessException {
    return getNamedParameterJdbcOperations().query(sql, args, rm);
  }

  @Deprecated
  public <T> List<T> query(String sql, ParameterizedRowMapper<T> rm, SqlParameterSource args)
      throws DataAccessException {
    return query(sql, (RowMapper<T>) rm, args);
  }

  public <T> List<T> query(String sql, RowMapper<T> rm, Object... args) throws DataAccessException {
    return (ObjectUtils.isEmpty(args) ?
        getJdbcOperations().query(sql, rm) :
        getJdbcOperations().query(sql, getArguments(args), rm));
  }

  @Deprecated
  public <T> List<T> query(String sql, ParameterizedRowMapper<T> rm, Object... args) throws DataAccessException {
    return query(sql, (RowMapper<T>) rm, args);
  }

  public Map<String, Object> queryForMap(String sql, Map<String, ?> args) throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForMap(sql, args);
  }

  public Map<String, Object> queryForMap(String sql, SqlParameterSource args)
      throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForMap(sql, args);
  }

  public Map<String, Object> queryForMap(String sql, Object... args) throws DataAccessException {
    return (ObjectUtils.isEmpty(args) ?
        getJdbcOperations().queryForMap(sql) :
        getJdbcOperations().queryForMap(sql, getArguments(args)));
  }

  public List<Map<String, Object>> queryForList(String sql, Map<String, ?> args) throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForList(sql, args);
  }

  public List<Map<String, Object>> queryForList(String sql, SqlParameterSource args)
      throws DataAccessException {
    return getNamedParameterJdbcOperations().queryForList(sql, args);
  }

  public List<Map<String, Object>> queryForList(String sql, Object... args) throws DataAccessException {
    return (ObjectUtils.isEmpty(args) ?
        getJdbcOperations().queryForList(sql) :
        getJdbcOperations().queryForList(sql, getArguments(args)));
  }

  public int update(String sql, Map<String, ?> args) throws DataAccessException {
    return getNamedParameterJdbcOperations().update(sql, args);
  }

  public int update(String sql, SqlParameterSource args) throws DataAccessException {
    return getNamedParameterJdbcOperations().update(sql, args);
  }

  public int update(String sql, Object ... args) throws DataAccessException {
    return (ObjectUtils.isEmpty(args) ?
        getJdbcOperations().update(sql) :
        getJdbcOperations().update(sql, getArguments(args)));
  }

  public int[] batchUpdate(String sql, List<Object[]> batchArgs) {
    return batchUpdate(sql, batchArgs, new int[0]);
  }

  public int[] batchUpdate(String sql, List<Object[]> batchArgs, int[] argTypes) {
    return BatchUpdateUtils.executeBatchUpdate(sql, batchArgs, argTypes, getJdbcOperations());
  }

  public int[] batchUpdate(String sql, Map<String, ?>[] batchValues) {
    return getNamedParameterJdbcOperations().batchUpdate(sql, batchValues);
  }

  public int[] batchUpdate(String sql, SqlParameterSource[] batchArgs) {
    return getNamedParameterJdbcOperations().batchUpdate(sql, batchArgs);
  }


  /*
   * Considers an Object array passed into a varargs parameter as
   * collection of arguments rather than as single argument.
   */
  private Object[] getArguments(Object[] varArgs) {
    if (varArgs.length == 1 && varArgs[0] instanceof Object[]) {
      return (Object[]) varArgs[0];
    }
    else {
      return varArgs;
    }
  }

}
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