Module org.datanucleus.store.rdbms
Package org.datanucleus.store.rdbms.datasource.dbcp2

Class Utils

  • public final class Utils
extends Object
    Utility methods.
    Since:
    2.0

    • Field Detail

      • 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:
        Constant Field Values

      • 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)

    • Method Detail

      • 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.