org.castor.cpa.persistence.sql.driver

Class InstantDBFactory

java.lang.Object

org.castor.cpa.persistence.sql.driver.BaseFactory

org.castor.cpa.persistence.sql.driver.GenericFactory

org.castor.cpa.persistence.sql.driver.InstantDBFactory

All Implemented Interfaces:

PersistenceFactory

public final class InstantDBFactory
extends GenericFactory

Persistence factory for InstantDB database (http://instantdb.enhydra.org/ ).

Example database.xml file for JDO

   <database name="test" engine="instantdb" >
       <driver class-name="org.enhydra.instantdb.jdbc.idbDriver" 
               url="jdbc:idb:C:\\castor-0.8.8\\db\\test\\test.prp">
         <param name="user" value="" />
         <param name="password" value="" />
       </driver>
       <mapping href="mapping.xml" />
    </database>
  

Version:

1.0

Author:

I. Burak Ozyurt

Field Summary

Fields

Modifier and Type	Field and Description
static String	FACTORY_NAME

Constructor Summary

Constructors

Constructor and Description
InstantDBFactory()

Method Summary

Methods

Modifier and Type	Method and Description
Class<?>	adjustSqlType(Class<?> sqlType) For NUMERIC type ResultSet.getObject() returns Double instead of BigDecimal for InstantDB.
PersistenceQuery	getCallQuery(String call, Class<?>[] paramTypes, Class<?> javaClass, String[] fields, int[] sqlTypes) Needed to process OQL queries of "CALL" type (using stored procedure call).
String	getFactoryName() Returns the name of this factory.
QueryExpression	getQueryExpression() Returns a new empty query expression suitable for the underlying SQL engine.

Methods inherited from class org.castor.cpa.persistence.sql.driver.GenericFactory

doubleQuoteName, getIdentitySelectString, getSequenceAfterSelectString, getSequenceBeforeSelectString, getSequenceNextValString, isKeyGeneratorIdentitySupported, isKeyGeneratorIdentityTypeSupported, isKeyGeneratorSequenceSupported, isKeyGeneratorSequenceTypeSupported, quoteName

Methods inherited from class org.castor.cpa.persistence.sql.driver.BaseFactory

getKeyGenerator, getPersistence

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 String FACTORY_NAME

See Also:

Constant Field Values

Constructor Detail

InstantDBFactory

public InstantDBFactory()

Method Detail

getFactoryName

public 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

Returns:

The name of this factory

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

Returns:

New empty query expression

getCallQuery

public PersistenceQuery getCallQuery(String call,
                            Class<?>[] paramTypes,
                            Class<?> javaClass,
                            String[] fields,
                            int[] sqlTypes)

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

Specified by:

getCallQuery in interface PersistenceFactory

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 Class<?> adjustSqlType(Class<?> sqlType)

For NUMERIC type ResultSet.getObject() returns Double instead of BigDecimal for InstantDB.

Specified by:

adjustSqlType in interface PersistenceFactory

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.