Package 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 Details

  • Constructor Details

    • InstantDBFactory

      public InstantDBFactory()

  • Method Details

    • 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.