org.apache.torque.adapter
Class DBInformix

java.lang.Object
  org.apache.torque.adapter.AbstractDBAdapter
      org.apache.torque.adapter.DBInformix

All Implemented Interfaces:

java.io.Serializable, DB, IDMethod

public class DBInformix
extends AbstractDBAdapter

This code should be used for an Informix database pool.

Version:

$Id: DBInformix.java 473821 2006-11-11 22:37:25Z tv $

Author:

Jon S. Stevens, Brian P Millett

See Also:

Serialized Form

Field Summary

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

ADAPTER_KEY, DRIVER_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

DBInformix() 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 in) This method is used to ignore case.
void	lockTable(java.sql.Connection con, java.lang.String table) The method is used to lock a table.
java.lang.String	toUpperCase(java.lang.String in) This method is used to ignore case.
void	unlockTable(java.sql.Connection con, java.lang.String table) The method is used to unlock a table.

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

escapeText, generateLimits, getBooleanString, getDateString, getFunctionClass, getLimitStyle, getStringDelimiter, ignoreCaseInOrderBy, supportsNativeLimit, supportsNativeOffset, useEscapeClauseForLike, useIlike

Methods inherited from class java.lang.Object

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

Constructor Detail

DBInformix

protected DBInformix()

Empty constructor.

Method Detail

toUpperCase

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

This method is used to ignore case. Problem is that Informix does not have an UPPER function. So the best would be to do nothing.

Specified by:

toUpperCase in interface DB

Specified by:

toUpperCase in class AbstractDBAdapter

Parameters:

in - The string to transform to upper case.

Returns:

The upper case string.

ignoreCase

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

This method is used to ignore case. Problem is that Informix does not have an UPPER function. So the best would be to do nothing.

Specified by:

ignoreCase in interface DB

Specified by:

ignoreCase in class AbstractDBAdapter

Parameters:

in - 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: AbstractDBAdapter

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

Specified by:

getIDMethodType in interface DB

Specified by:

getIDMethodType in class AbstractDBAdapter

Returns:

IDMethod constant

See Also:

DB.getIDMethodType()

getIDMethodSQL

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

Description copied from class: AbstractDBAdapter

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

Specified by:

getIDMethodSQL in interface DB

Specified by:

getIDMethodSQL in class AbstractDBAdapter

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

The method is used to lock a table.

Specified by:

lockTable in interface DB

Specified by:

lockTable in class AbstractDBAdapter

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

The method is used to unlock a table.

Specified by:

unlockTable in interface DB

Specified by:

unlockTable in class AbstractDBAdapter

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.