org.apache.torque.adapter
Class DBDerby

java.lang.Object
  org.apache.torque.adapter.DB
      org.apache.torque.adapter.DBDerby

All Implemented Interfaces:

IDMethod, java.io.Serializable

public class DBDerby

extends DB

This is used to connect to an embedded Apache Derby Database using the supplied JDBC driver.

Version:

$Id: DBDerby.java 332796 2005-11-12 16:20:10Z tfischer $

Author:

Henning P. Schmiedehausen

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.torque.adapter.DB

ADAPTER_KEY, LIMIT_STYLE_DB2, LIMIT_STYLE_MYSQL, LIMIT_STYLE_NONE, LIMIT_STYLE_ORACLE, LIMIT_STYLE_POSTGRES, LIMIT_STYLE_SYBASE

Fields inherited from interface org.apache.torque.adapter.IDMethod

AUTO_INCREMENT, ID_BROKER, NATIVE, NO_ID_METHOD, SEQUENCE

Constructor Summary

protected

DBDerby() Empty constructor.

Method Summary

java.lang.String	getIDMethodSQL(java.lang.Object obj) Returns SQL used to get the most recently inserted primary key.
java.lang.String	getIDMethodType() Returns the constant from the IDMethod interface denoting which type of primary key generation method this type of RDBMS uses.
java.lang.String	ignoreCase(java.lang.String str) This method is used to ignore case.
void	lockTable(java.sql.Connection con, java.lang.String table) Locks the specified table.
java.lang.String	toUpperCase(java.lang.String str) This method is used to ignore case.
void	unlockTable(java.sql.Connection con, java.lang.String table) Unlocks the specified table.

Methods inherited from class org.apache.torque.adapter.DB

escapeText, getBooleanString, getDateString, getLimitStyle, getStringDelimiter, ignoreCaseInOrderBy, supportsNativeLimit, supportsNativeOffset

Methods inherited from class java.lang.Object

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

Constructor Detail

DBDerby

protected DBDerby()

Empty constructor.

Method Detail

toUpperCase

public java.lang.String toUpperCase(java.lang.String str)

This method is used to ignore case.

Specified by:

toUpperCase in class DB

Parameters:

str - The string to transform to upper case.

Returns:

The upper case string.

ignoreCase

public java.lang.String ignoreCase(java.lang.String str)

This method is used to ignore case.

Specified by:

ignoreCase in class DB

Parameters:

str - The string whose case to ignore.

Returns:

The string in a case that can be ignored.

getIDMethodType

public java.lang.String getIDMethodType()

Description copied from class: DB

Returns the constant from the IDMethod interface denoting which type of primary key generation method this type of RDBMS uses.

Specified by:

getIDMethodType in class DB

Returns:

IDMethod constant

See Also:

DB.getIDMethodType()

getIDMethodSQL

public java.lang.String getIDMethodSQL(java.lang.Object obj)

Description copied from class: DB

Returns SQL used to get the most recently inserted primary key. Databases which have no support for this return null.

Specified by:

getIDMethodSQL in class DB

Parameters:

obj - Information used for key generation.

Returns:

The most recently inserted database key.

See Also:

DB.getIDMethodSQL(Object obj)

lockTable

public void lockTable(java.sql.Connection con,
                      java.lang.String table)
               throws java.sql.SQLException

Locks the specified table.

Specified by:

lockTable in class DB

Parameters:

con - The JDBC connection to use.

table - The name of the table to lock.

Throws:

java.sql.SQLException - No Statement could be created or executed.

unlockTable

public void unlockTable(java.sql.Connection con,
                        java.lang.String table)
                 throws java.sql.SQLException

Unlocks the specified table.

Specified by:

unlockTable in class DB

Parameters:

con - The JDBC connection to use.

table - The name of the table to unlock.

Throws:

java.sql.SQLException - No Statement could be created or executed.