com.mysql.jdbc
Class Util

java.lang.Object
  com.mysql.jdbc.Util

public class Util

extends java.lang.Object

Various utility methods for the driver.

Nested Class Summary

(package private) class

Util.RandStructcture

Constructor Summary

Util()

Method Summary

(package private) static java.util.TimeZone	getDefaultTimeZone()
static boolean	interfaceExists(java.lang.String hostname) Does a network interface exist locally with the given hostname?
(package private) static java.lang.String	newCrypt(java.lang.String password, java.lang.String seed)
(package private) static long[]	newHash(java.lang.String password)
(package private) static java.lang.String	oldCrypt(java.lang.String password, java.lang.String seed)
(package private) static long	oldHash(java.lang.String password)
static java.lang.Object	readObject(java.sql.ResultSet resultSet, int index) Given a ResultSet and an index into the columns of that ResultSet, read binary data from the column which represents a serialized object, and re-create the object.
static java.lang.String	scramble(java.lang.String message, java.lang.String password) DOCUMENT ME!
static java.lang.String	stackTraceToString(java.lang.Throwable ex) Converts a nested exception into a nicer message

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Util

public Util()

Method Detail

getDefaultTimeZone

static final java.util.TimeZone getDefaultTimeZone()

newCrypt

static java.lang.String newCrypt(java.lang.String password,
                                 java.lang.String seed)

newHash

static long[] newHash(java.lang.String password)

oldCrypt

static java.lang.String oldCrypt(java.lang.String password,
                                 java.lang.String seed)

oldHash

static long oldHash(java.lang.String password)

readObject

public static java.lang.Object readObject(java.sql.ResultSet resultSet,
                                          int index)
                                   throws java.lang.Exception

Given a ResultSet and an index into the columns of that ResultSet, read binary data from the column which represents a serialized object, and re-create the object.

Parameters:

resultSet - the ResultSet to use.

index - an index into the ResultSet.

Returns:

the object if it can be de-serialized

Throws:

java.lang.Exception - if an error occurs

scramble

public static java.lang.String scramble(java.lang.String message,
                                        java.lang.String password)

DOCUMENT ME!

Parameters:

message - DOCUMENT ME!

password - DOCUMENT ME!

Returns:

DOCUMENT ME!

stackTraceToString

public static java.lang.String stackTraceToString(java.lang.Throwable ex)

Converts a nested exception into a nicer message

Parameters:

ex - the exception to expand into a message.

Returns:

a message containing the exception, the message (if any), and a stacktrace.

interfaceExists

public static boolean interfaceExists(java.lang.String hostname)

Does a network interface exist locally with the given hostname?

Parameters:

hostname - the hostname (or IP address in string form) to check

Returns:

true if it exists, false if no, or unable to determine due to VM version support of java.net.NetworkInterface