Class Utils

java.lang.Object
org.datanucleus.store.rdbms.datasource.dbcp2.Utils
public final class Utils extends Object
Utility methods.
Since:
2.0

  • Field Details

    • messages

      private static final ResourceBundle messages

    • IS_SECURITY_ENABLED

      public static final boolean IS_SECURITY_ENABLED
      Whether the security manager is enabled.

    • DISCONNECTION_SQL_CODE_PREFIX

      public static final String DISCONNECTION_SQL_CODE_PREFIX
      Any SQL_STATE starting with this value is considered a fatal disconnect
      See Also:

    • DISCONNECTION_SQL_CODES

      public static final Set<String> DISCONNECTION_SQL_CODES
      SQL codes of fatal connection errors.
      • 57P01 (Admin shutdown)
      • 57P02 (Crash shutdown)
      • 57P03 (Cannot connect now)
      • 01002 (SQL92 disconnect error)
      • JZ0C0 (Sybase disconnect error)
      • JZ0C1 (Sybase disconnect error)

  • Constructor Details

    • Utils

      private Utils()

  • Method Details

    • clone

      public static char[] clone(char[] value)
      Clones the given char[] if not null.
      Parameters:
      value - may be null.
      Returns:
      a cloned char[] or null.

    • closeQuietly

      public static void closeQuietly(AutoCloseable autoCloseable)
      Closes the AutoCloseable (which may be null).
      Parameters:
      autoCloseable - an AutoCloseable, may be null
      Since:
      2.6.0

    • closeQuietly

      public static void closeQuietly(Connection connection)
      Closes the Connection (which may be null).
      Parameters:
      connection - a Connection, may be null

    • closeQuietly

      public static void closeQuietly(ResultSet resultSet)
      Closes the ResultSet (which may be null).
      Parameters:
      resultSet - a ResultSet, may be null

    • closeQuietly

      public static void closeQuietly(Statement statement)
      Closes the Statement (which may be null).
      Parameters:
      statement - a Statement, may be null.

    • getMessage

      public static String getMessage(String key)
      Gets the correct i18n message for the given key.
      Parameters:
      key - The key to look up an i18n message.
      Returns:
      The i18n message.

    • getMessage

      public static String getMessage(String key, Object... args)
      Gets the correct i18n message for the given key with placeholders replaced by the supplied arguments.
      Parameters:
      key - A message key.
      args - The message arguments.
      Returns:
      An i18n message.

    • toCharArray

      public static char[] toCharArray(String value)
      Converts the given String to a char[].
      Parameters:
      value - may be null.
      Returns:
      a char[] or null.

    • toString

      public static String toString(char[] value)
      Converts the given char[] to a String.
      Parameters:
      value - may be null.
      Returns:
      a String or null.