org.exolab.castor.jdo.drivers
Class PostgreSQLFactory

java.lang.Object
  org.exolab.castor.jdo.engine.BaseFactory
      org.exolab.castor.jdo.drivers.GenericFactory
          org.exolab.castor.jdo.drivers.PostgreSQLFactory

All Implemented Interfaces:

PersistenceFactory

public final class PostgreSQLFactory

extends GenericFactory

PersistenceFactory for postgreSQL JDBC driver.

Version:

$Revision: 7123 $ $Date: 2006-02-21 16:05:42 -0700 (Tue, 21 Feb 2006) $

Author:

Assaf Arkin

Field Summary

static java.lang.String

FACTORY_NAME Internal name for this PersistenceFactory instance.

Constructor Summary

PostgreSQLFactory()

Method Summary

java.lang.Class	adjustSqlType(java.lang.Class sqlType) Some databases has some problems with some SQL types.
PersistenceQuery	getCallQuery(java.lang.String call, java.lang.Class[] paramTypes, java.lang.Class javaClass, java.lang.String[] fields, int[] sqlTypes) Needed to process OQL queries of "CALL" type (using stored procedure call).
java.lang.String	getFactoryName() Returns the name of this factory.
QueryExpression	getQueryExpression() Returns a new empty query expression suitable for the underlying SQL engine.
java.lang.Boolean	isDuplicateKeyException(java.lang.Exception ex) Determine if the given SQLException is DuplicateKeyException.
java.lang.String	quoteName(java.lang.String name) Returns the quoted identifier suitable for preventing conflicts between database identifiers and reserved keywords.

Methods inherited from class org.exolab.castor.jdo.drivers.GenericFactory

doubleQuoteName

Methods inherited from class org.exolab.castor.jdo.engine.BaseFactory

getPersistence, supportsSetNullInWhere

Methods inherited from class java.lang.Object

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

Field Detail

FACTORY_NAME

public static final java.lang.String FACTORY_NAME

Internal name for this PersistenceFactory instance.

See Also:

Constant Field Values

Constructor Detail

PostgreSQLFactory

public PostgreSQLFactory()

Method Detail

getFactoryName

public java.lang.String getFactoryName()

Description copied from interface: PersistenceFactory

Returns the name of this factory. A descriptive name that indicates the type of supported database server or SQL syntax.

Specified by:

getFactoryName in interface PersistenceFactory

Overrides:

getFactoryName in class GenericFactory

getQueryExpression

public QueryExpression getQueryExpression()

Description copied from interface: PersistenceFactory

Returns a new empty query expression suitable for the underlying SQL engine. The implementation will construct SQL query statements in the preferred syntax.

Specified by:

getQueryExpression in interface PersistenceFactory

Overrides:

getQueryExpression in class GenericFactory

isDuplicateKeyException

public java.lang.Boolean isDuplicateKeyException(java.lang.Exception ex)

Determine if the given SQLException is DuplicateKeyException.

Specified by:

isDuplicateKeyException in interface PersistenceFactory

Overrides:

isDuplicateKeyException in class GenericFactory

Returns:

Boolean.TRUE means "yes", Boolean.FALSE means "no", null means "cannot determine".

quoteName

public java.lang.String quoteName(java.lang.String name)

Description copied from interface: PersistenceFactory

Returns the quoted identifier suitable for preventing conflicts between database identifiers and reserved keywords.

Specified by:

quoteName in interface PersistenceFactory

Overrides:

quoteName in class GenericFactory

getCallQuery

public PersistenceQuery getCallQuery(java.lang.String call,
                                     java.lang.Class[] paramTypes,
                                     java.lang.Class javaClass,
                                     java.lang.String[] fields,
                                     int[] sqlTypes)

Needed to process OQL queries of "CALL" type (using stored procedure call). This feature is specific for JDO.

Overrides:

getCallQuery in class BaseFactory

Parameters:

call - Stored procedure call (without "{call")

paramTypes - The types of the query parameters

javaClass - The Java class of the query results

fields - The field names

sqlTypes - The field SQL types

Returns:

null if this feature is not supported.

adjustSqlType

public java.lang.Class adjustSqlType(java.lang.Class sqlType)

Description copied from class: BaseFactory

Some databases has some problems with some SQL types. Usually it is enough to merely replace one SQL type by another.

Overrides:

adjustSqlType in class BaseFactory

Parameters:

sqlType - The correspondent Java class for the SQL type in mapping.xml

Returns:

The correspondent Java class for the SQL type that should be used instead.