org.apache.torque.engine.platform
Class PlatformDerbyImpl

java.lang.Object
  org.apache.torque.engine.platform.PlatformDefaultImpl
      org.apache.torque.engine.platform.PlatformDerbyImpl

All Implemented Interfaces:

Platform

public class PlatformDerbyImpl
extends PlatformDefaultImpl

Derby Platform implementation.

Version:

$Id: PlatformDerbyImpl.java 482880 2006-12-06 03:55:24Z gmonroe $

Author:

Johnny Macchione, Greg Monroe

Field Summary

Fields inherited from interface org.apache.torque.engine.platform.Platform

IDENTITY, SEQUENCE

Constructor Summary

PlatformDerbyImpl()
Default constructor.

Method Summary

java.lang.String	getAutoIncrement()
int	getMaxColumnNameLength() Returns the max column length supported by the db.
java.lang.String	getNativeIdMethod() Returns the native IdMethod (sequence|identity)
boolean	hasScale(java.lang.String sqlType) Returns if the RDBMS-specific SQL type has a scale attribute.
boolean	hasSize(java.lang.String sqlType) Returns if the RDBMS-specific SQL type has a size attribute.

Methods inherited from class org.apache.torque.engine.platform.PlatformDefaultImpl

createNotNullBeforeAutoincrement, getDomainForSchemaType, getNullString, setSchemaDomainMapping

Methods inherited from class java.lang.Object

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

Constructor Detail

PlatformDerbyImpl

public PlatformDerbyImpl()

Default constructor.

Method Detail

getMaxColumnNameLength

public int getMaxColumnNameLength()

Description copied from interface: Platform

Returns the max column length supported by the db.

Specified by:

getMaxColumnNameLength in interface Platform

Overrides:

getMaxColumnNameLength in class PlatformDefaultImpl

Returns:

the max column length

See Also:

Platform.getMaxColumnNameLength()

getAutoIncrement

public java.lang.String getAutoIncrement()

Specified by:

getAutoIncrement in interface Platform

Overrides:

getAutoIncrement in class PlatformDefaultImpl

Returns:

The RDBMS-specific SQL fragment for autoincrement.

See Also:

Platform.getAutoIncrement()

getNativeIdMethod

public java.lang.String getNativeIdMethod()

Description copied from interface: Platform

Returns the native IdMethod (sequence|identity)

Specified by:

getNativeIdMethod in interface Platform

Overrides:

getNativeIdMethod in class PlatformDefaultImpl

Returns:

the native IdMethod

See Also:

Platform.getNativeIdMethod()

hasScale

public boolean hasScale(java.lang.String sqlType)

Description copied from interface: Platform

Returns if the RDBMS-specific SQL type has a scale attribute.

Specified by:

hasScale in interface Platform

Overrides:

hasScale in class PlatformDefaultImpl

Parameters:

sqlType - the SQL type

Returns:

true if the type has a scale attribute

See Also:

Platform.hasScale(String)

hasSize

public boolean hasSize(java.lang.String sqlType)

Description copied from interface: Platform

Returns if the RDBMS-specific SQL type has a size attribute.

Specified by:

hasSize in interface Platform

Overrides:

hasSize in class PlatformDefaultImpl

Parameters:

sqlType - the SQL type

Returns:

true if the type has a size attribute

See Also:

Platform.hasSize(String)