Package uk.ac.manchester.spinnaker.alloc.db

Class Utils

java.lang.Object

uk.ac.manchester.spinnaker.alloc.db.Utils

public abstract class Utils
extends Object

Miscellaneous database-related utility operations.

Author:

Donal Fellows

Method Summary

Modifier and Type	Method	Description
static boolean	isBusy(SQLException exception)	Utility for testing whether an exception was thrown because the database was busy.
static boolean	isBusy(DataAccessException exception)	Utility for testing whether an exception was thrown because the database was busy.
static DataAccessException	mapException(SQLException exception, String sql)	Convert an SQL-related exception into an unchecked exception.
static String	trimSQL(String sql)	Exclude comments and compress whitespace from the SQL of a statement.
static String	trimSQL(String sql, int length)	Exclude comments and compress whitespace from the SQL of a statement.

Methods inherited from class java.lang.Object

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

Method Details

trimSQL

public static String trimSQL(String sql)

Exclude comments and compress whitespace from the SQL of a statement.

Parameters:

sql - The text of the SQL to trim.

Returns:

The trimmed SQL.

trimSQL

public static String trimSQL(String sql,
 int length)

Exclude comments and compress whitespace from the SQL of a statement.

Parameters:

sql - The text of the SQL to trim.

length - The point to insert an ellipsis if required.

Returns:

The trimmed SQL.

isBusy

public static boolean isBusy(DataAccessException exception)

Utility for testing whether an exception was thrown because the database was busy.

Parameters:

exception - The outer wrapping exception.

Returns:

Whether it was caused by the database being busy.

isBusy

public static boolean isBusy(SQLException exception)

Utility for testing whether an exception was thrown because the database was busy.

Parameters:

exception - The exception to test.

Returns:

Whether it was caused by the database being busy.

mapException

public static DataAccessException mapException(SQLException exception,
 String sql)

Convert an SQL-related exception into an unchecked exception.

Parameters:

exception - The exception to convert.

sql - Optional SQL that caused the problem. May be null.

Returns:

The converted exception; this is not thrown by this method!