org.apache.torque.engine.platform
Class PlatformDefaultImpl

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

All Implemented Interfaces:

Platform

Direct Known Subclasses:

PlatformAxionImpl, PlatformCloudscapeImpl, PlatformDb2400Impl, PlatformDb2Impl, PlatformDerbyImpl, PlatformHypersonicImpl, PlatformInterbaseImpl, PlatformMsaccessImpl, PlatformMssqlImpl, PlatformMysqlImpl, PlatformOracleImpl, PlatformPostgresqlImpl, PlatformSapdbImpl, PlatformSybaseImpl

public class PlatformDefaultImpl
extends java.lang.Object
implements Platform

Default implementation for the Platform interface.

Version:

$Id: PlatformDefaultImpl.java 473814 2006-11-11 22:30:30Z tv $

Author:

Martin Poeschl

Field Summary

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

IDENTITY, SEQUENCE

Constructor Summary

PlatformDefaultImpl()
Default constructor.

Method Summary

boolean	createNotNullBeforeAutoincrement() Returns whether the "not null part" of the definition of a column should be generated before the "autoincrement part" in a "create table" statement.
java.lang.String	getAutoIncrement()
Domain	getDomainForSchemaType(SchemaType jdbcType) Returns the db specific domain for a jdbcType.
int	getMaxColumnNameLength() Returns the max column length supported by the db.
java.lang.String	getNativeIdMethod() Returns the native IdMethod (sequence|identity)
java.lang.String	getNullString(boolean notNull)
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.
protected void	setSchemaDomainMapping(Domain domain)

Methods inherited from class java.lang.Object

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

Constructor Detail

PlatformDefaultImpl

public PlatformDefaultImpl()

Default constructor.

Method Detail

setSchemaDomainMapping

protected void setSchemaDomainMapping(Domain domain)

getMaxColumnNameLength

public int getMaxColumnNameLength()

Description copied from interface: Platform

Returns the max column length supported by the db.

Specified by:

getMaxColumnNameLength in interface Platform

Returns:

the max column length

See Also:

Platform.getMaxColumnNameLength()

getNativeIdMethod

public java.lang.String getNativeIdMethod()

Description copied from interface: Platform

Returns the native IdMethod (sequence|identity)

Specified by:

getNativeIdMethod in interface Platform

Returns:

the native IdMethod

See Also:

Platform.getNativeIdMethod()

getDomainForSchemaType

public Domain getDomainForSchemaType(SchemaType jdbcType)

Description copied from interface: Platform

Returns the db specific domain for a jdbcType.

Specified by:

getDomainForSchemaType in interface Platform

Parameters:

jdbcType - the jdbcType name

Returns:

the db specific domain

See Also:

Platform.getDomainForSchemaType(SchemaType)

getNullString

public java.lang.String getNullString(boolean notNull)

Specified by:

getNullString in interface Platform

Returns:

Only produces a SQL fragment if null values are disallowed.

See Also:

Platform.getNullString(boolean)

getAutoIncrement

public java.lang.String getAutoIncrement()

Specified by:

getAutoIncrement in interface Platform

Returns:

The RDBMS-specific SQL fragment for autoincrement.

See Also:

Platform.getAutoIncrement()

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

Parameters:

sqlType - the SQL type

Returns:

true if the type has a scale attribute

See Also:

TODO collect info for all platforms

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

Parameters:

sqlType - the SQL type

Returns:

true if the type has a size attribute

See Also:

TODO collect info for all platforms

createNotNullBeforeAutoincrement

public boolean createNotNullBeforeAutoincrement()

Description copied from interface: Platform

Returns whether the "not null part" of the definition of a column should be generated before the "autoincrement part" in a "create table" statement.

Specified by:

createNotNullBeforeAutoincrement in interface Platform

Returns:

true if the "not null part" should be first, false if the "autoincrement part" should be first in a "create table" statement.

See Also:

Platform.createNotNullBeforeAutoincrement()