Java Code Examples for org.apache.ibatis.executor.statement.StatementHandler#prepare()

The following examples show how to use org.apache.ibatis.executor.statement.StatementHandler#prepare() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ReuseExecutor.java    From mybaties with Apache License 2.0 6 votes vote down vote up 
private Statement prepareStatement(StatementHandler handler, Log statementLog) throws SQLException {
  Statement stmt;
  //得到绑定的SQL语句
  BoundSql boundSql = handler.getBoundSql();
  String sql = boundSql.getSql();
  //如果缓存中已经有了，直接得到Statement
  if (hasStatementFor(sql)) {
    stmt = getStatement(sql);
  } else {
    //如果缓存没有找到，则和SimpleExecutor处理完全一样，然后加入缓存
    Connection connection = getConnection(statementLog);
    stmt = handler.prepare(connection);
    putStatement(sql, stmt);
  }
  handler.parameterize(stmt);
  return stmt;
}
Example 2
Source File: BatchExecutor.java    From mybaties with Apache License 2.0 6 votes vote down vote up 
@Override
public int doUpdate(MappedStatement ms, Object parameterObject) throws SQLException {
  final Configuration configuration = ms.getConfiguration();
  final StatementHandler handler = configuration.newStatementHandler(this, ms, parameterObject, RowBounds.DEFAULT, null, null);
  final BoundSql boundSql = handler.getBoundSql();
  final String sql = boundSql.getSql();
  final Statement stmt;
  if (sql.equals(currentSql) && ms.equals(currentStatement)) {
    int last = statementList.size() - 1;
    stmt = statementList.get(last);
    BatchResult batchResult = batchResultList.get(last);
    batchResult.addParameterObject(parameterObject);
  } else {
    Connection connection = getConnection(ms.getStatementLog());
    stmt = handler.prepare(connection);
    currentSql = sql;
    currentStatement = ms;
    statementList.add(stmt);
    batchResultList.add(new BatchResult(ms, sql, parameterObject));
  }
  handler.parameterize(stmt);
  handler.batch(stmt);
  return BATCH_UPDATE_RETURN_VALUE;
}
Example 3
Source File: BatchExecutor.java    From mybaties with Apache License 2.0 6 votes vote down vote up 
@Override
public <E> List<E> doQuery(MappedStatement ms, Object parameterObject, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql)
    throws SQLException {
  Statement stmt = null;
  try {
    flushStatements();
    Configuration configuration = ms.getConfiguration();
    StatementHandler handler = configuration.newStatementHandler(wrapper, ms, parameterObject, rowBounds, resultHandler, boundSql);
    Connection connection = getConnection(ms.getStatementLog());
    stmt = handler.prepare(connection);
    handler.parameterize(stmt);
    return handler.<E>query(stmt, resultHandler);
  } finally {
    closeStatement(stmt);
  }
}
Example 4
Source File: ReuseExecutor.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
private Statement prepareStatement(StatementHandler handler, Log statementLog) throws SQLException {
  Statement stmt;
  //得到绑定的SQL语句
  BoundSql boundSql = handler.getBoundSql();
  String sql = boundSql.getSql();
  //如果缓存中已经有了，直接得到Statement
  if (hasStatementFor(sql)) {
    stmt = getStatement(sql);
  } else {
    //如果缓存没有找到，则和SimpleExecutor处理完全一样，然后加入缓存
    Connection connection = getConnection(statementLog);
    stmt = handler.prepare(connection);
    putStatement(sql, stmt);
  }
  handler.parameterize(stmt);
  return stmt;
}
Example 5
Source File: BatchExecutor.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
@Override
public int doUpdate(MappedStatement ms, Object parameterObject) throws SQLException {
  final Configuration configuration = ms.getConfiguration();
  final StatementHandler handler = configuration.newStatementHandler(this, ms, parameterObject, RowBounds.DEFAULT, null, null);
  final BoundSql boundSql = handler.getBoundSql();
  final String sql = boundSql.getSql();
  final Statement stmt;
  if (sql.equals(currentSql) && ms.equals(currentStatement)) {
    int last = statementList.size() - 1;
    stmt = statementList.get(last);
    BatchResult batchResult = batchResultList.get(last);
    batchResult.addParameterObject(parameterObject);
  } else {
    Connection connection = getConnection(ms.getStatementLog());
    stmt = handler.prepare(connection);
    currentSql = sql;
    currentStatement = ms;
    statementList.add(stmt);
    batchResultList.add(new BatchResult(ms, sql, parameterObject));
  }
  handler.parameterize(stmt);
  handler.batch(stmt);
  return BATCH_UPDATE_RETURN_VALUE;
}
Example 6
Source File: BatchExecutor.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
@Override
public <E> List<E> doQuery(MappedStatement ms, Object parameterObject, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql)
    throws SQLException {
  Statement stmt = null;
  try {
    flushStatements();
    Configuration configuration = ms.getConfiguration();
    StatementHandler handler = configuration.newStatementHandler(wrapper, ms, parameterObject, rowBounds, resultHandler, boundSql);
    Connection connection = getConnection(ms.getStatementLog());
    stmt = handler.prepare(connection);
    handler.parameterize(stmt);
    return handler.<E>query(stmt, resultHandler);
  } finally {
    closeStatement(stmt);
  }
}
Example 7
Source File: SimpleExecutor.java    From mybaties with Apache License 2.0 5 votes vote down vote up 
private Statement prepareStatement(StatementHandler handler, Log statementLog) throws SQLException {
  Statement stmt;
  Connection connection = getConnection(statementLog);
  //调用StatementHandler.prepare
  stmt = handler.prepare(connection);
  //调用StatementHandler.parameterize
  handler.parameterize(stmt);
  return stmt;
}
Example 8
Source File: SimpleExecutor.java    From mybatis with Apache License 2.0 5 votes vote down vote up 
private Statement prepareStatement(StatementHandler handler, Log statementLog) throws SQLException {
  Statement stmt;
  Connection connection = getConnection(statementLog);
  //调用StatementHandler.prepare
  stmt = handler.prepare(connection);
  //调用StatementHandler.parameterize
  handler.parameterize(stmt);
  return stmt;
}