org.apache.derby.impl.services.locks

Class Timeout

java.lang.Object

org.apache.derby.impl.services.locks.Timeout

public final class Timeout
extends java.lang.Object

Code to support Timeout error output.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ALL
private static java.lang.String[]	column
private Latch	currentLock
private java.util.Hashtable	currentRow
private long	currentTime
private static int	LENGTHOFTABLE
private static char	LINE
private java.util.Enumeration	lockTable
static java.lang.String	newline
private char[]	outputRow
private java.lang.StringBuffer	sb
private static char	SEPARATOR
private TableNameInfo	tabInfo
static int	TABLE_AND_ROWLOCK
private TransactionController	tc

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Timeout(Latch myTimeoutLock, java.util.Enumeration myLockTable, long time) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
(package private) static StandardException	buildException(Latch timeoutLock, java.util.Enumeration table, long time) The static entry way to get the LockTable in the system.
private java.lang.String	buildLockTableString() buildLockTableString creates a LockTable info String
static java.lang.String	buildString(java.util.Enumeration table, long time)
private void	cpArray(java.lang.String toCp, int start, int end) cpArray helps built the output string (outputRow).
private StandardException	createException() createException creates a StandardException based on: currentLock a snapshot of the lockTable
private void	dumpLock() dumpLock puts information about currentLock into currentRow for output later.
private boolean	timeoutInfoHash() Copies the needed information from currentRow into the StringBuffer for output

Methods inherited from class java.lang.Object

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

Field Detail

TABLE_AND_ROWLOCK

public static final int TABLE_AND_ROWLOCK

See Also:

Constant Field Values

ALL

public static final int ALL

See Also:

Constant Field Values

newline

public static final java.lang.String newline

See Also:

Constant Field Values

tc

private TransactionController tc

tabInfo

private TableNameInfo tabInfo

currentLock

private Latch currentLock

outputRow

private char[] outputRow

sb

private java.lang.StringBuffer sb

currentRow

private java.util.Hashtable currentRow

currentTime

private final long currentTime

lockTable

private final java.util.Enumeration lockTable

column

private static final java.lang.String[] column

LENGTHOFTABLE

private static final int LENGTHOFTABLE

LINE

private static final char LINE

See Also:

Constant Field Values

SEPARATOR

private static final char SEPARATOR

See Also:

Constant Field Values

Constructor Detail

Timeout

private Timeout(Latch myTimeoutLock,
       java.util.Enumeration myLockTable,
       long time)

Constructor

Parameters:

myTimeoutLock - The Latch that the timeout happened on

myLockTable -

time - The time when the lockTable was cloned.

Method Detail

createException

private StandardException createException()

createException creates a StandardException based on: currentLock a snapshot of the lockTable

Returns:

StandardException The exception with the lockTable snapshot in it

buildLockTableString

private java.lang.String buildLockTableString()
                                       throws StandardException

buildLockTableString creates a LockTable info String

Throws:

StandardException

buildException

static StandardException buildException(Latch timeoutLock,
                               java.util.Enumeration table,
                               long time)

The static entry way to get the LockTable in the system.

Parameters:

timeoutLock - The Latch that the timeout happened on

table - The lockTable

time - The time when the lockTable was cloned

Returns:

StandardException The exception with the lockTable snapshot in it

buildString

public static java.lang.String buildString(java.util.Enumeration table,
                           long time)
                                    throws StandardException

Throws:

StandardException

dumpLock

private void dumpLock()
               throws StandardException

dumpLock puts information about currentLock into currentRow for output later.

Throws:

StandardException

cpArray

private void cpArray(java.lang.String toCp,
           int start,
           int end)

cpArray helps built the output string (outputRow).

Parameters:

toCp - the String to be copied into outputRow

start - the start place

end - the end place

timeoutInfoHash

private boolean timeoutInfoHash()

Copies the needed information from currentRow into the StringBuffer for output

Returns:

true if successful