程序包 com.mysql.cj.jdbc.util

类 BaseBugReport

  • public abstract class BaseBugReport
extends Object
    Base class to help file bug reports for Connector/J.

    MySQL AB, 2008 Sun Microsystems, 2009 Oracle Corporation really appreciates repeatable testcases when reporting bugs, so we're giving you this class to make that job a bit easier (and standarized).

    To create a testcase, create a class that inherits from this class (com.mysql.cj.jdbc.util.BaseBugReport), and override the methods 'setUp', 'tearDown' and 'runTest'.

    In the 'setUp' method, create code that creates your tables, and populates them with any data needed to demonstrate the bug.

    In the 'runTest' method, create code that demonstrates the bug using the tables and data you created in the 'setUp' method.

    In the 'tearDown' method, drop any tables you created in the 'setUp' method.

    In any of the above three methods, you should use one of the variants of the 'getConnection' method to create a JDBC connection to MySQL, which will use the default JDBC URL of 'jdbc:mysql:///test'.

    If you need to use a JDBC URL that is different than 'jdbc:mysql:///test', then override the method 'getUrl' as well.

    Use the 'assertTrue' methods to create conditions that must be met in your testcase demonstrating the behavior you are expecting (vs. the behavior you are observing, which is why you are most likely filing a bug report).

    Finally, create a 'main' method that creates a new instance of your testcase, and calls the 'run' method: 

     public static void main(String[] args) throws Exception {
     new MyBugReport().run();
 }

    When filing a potential bug with MySQL Connector/J at http://bugs.mysql.com/ or on the bugs mailing list, please include the code that you have just written using this class.

    • 构造器详细资料

      • BaseBugReport

        public BaseBugReport()
        Constructor for this BugReport, sets up JDBC driver used to create connections.

    • 方法详细资料

      • setUp

        public abstract void setUp()
                    throws Exception
        Override this method with code that sets up the testcase for demonstrating your bug (creating tables, populating data, etc).
        抛出:
        Exception - if an error occurs during the 'setUp' phase.

      • tearDown

        public abstract void tearDown()
                       throws Exception
        Override this method with code that cleans up anything created in the setUp() method.
        抛出:
        Exception - if an error occurs during the 'tearDown' phase.

      • runTest

        public abstract void runTest()
                      throws Exception
        Override this method with code that demonstrates the bug. This method will be called after setUp(), and before tearDown().
        抛出:
        Exception - if an error occurs during your test run.

      • run

        public final void run()
               throws Exception
        Runs the testcase by calling the setUp(), runTest() and tearDown() methods. The tearDown() method is run regardless of any errors occuring in the other methods.
        抛出:
        Exception - if an error occurs in any of the aforementioned methods.

      • assertTrue

        protected final void assertTrue​(String message,
                                boolean condition)
                         throws Exception
        Throws an exception with the given message if condition evalutates to 'false'.
        参数:
        message - the message to use in the exception
        condition - the condition to test for
        抛出:
        Exception - if !condition

      • assertTrue

        protected final void assertTrue​(boolean condition)
                         throws Exception
        Throws an exception if condition evalutates to 'false'.
        参数:
        condition - the condition to test for
        抛出:
        Exception - if !condition

      • getUrl

        public String getUrl()
        Provides the JDBC URL to use to demonstrate the bug. The java.sql.Connection that you use to demonstrate this bug will be provided by the getConnection() method using this URL. The default value is 'jdbc:mysql:///test'
        返回:
        URL

      • getConnection

        public final Connection getConnection()
                               throws SQLException
        Provides a connection to the JDBC URL specified in getUrl(). If a connection already exists, that connection is returned. Otherwise a new connection is created.
        返回:
        a connection to the JDBC URL specified in getUrl().
        抛出:
        SQLException - if an error is caused while creating the connection.

      • getNewConnection

        public final Connection getNewConnection()
                                  throws SQLException
        Use this if you need to get a new connection for your bug report (i.e. there's more than one connection involved).
        返回:
        a new connection to the JDBC URL specified in getUrl().
        抛出:
        SQLException - if an error is caused while creating the connection.

      • getConnection

        public final Connection getConnection​(String url)
                               throws SQLException
        Returns a connection using the given URL.
        参数:
        url - the JDBC URL to use
        返回:
        a new java.sql.Connection to the JDBC URL.
        抛出:
        SQLException - if an error occurs getting the connection.

      • getConnection

        public final Connection getConnection​(String url,
                                      Properties props)
                               throws SQLException
        Returns a connection using the given URL and properties.
        参数:
        url - the JDBC URL to use
        props - the JDBC properties to use
        返回:
        a new java.sql.Connection to the JDBC URL.
        抛出:
        SQLException - if an error occurs getting the connection.