com.sun.jdo.api.persistence.support

Interface SpecialDBOperation

public interface SpecialDBOperation

SpecialDBOperation interface is defined for database specific operations.

Author:

Shing Wai Chan

Method Summary

Modifier and Type	Method and Description
void	bindFixedCharColumn(PreparedStatement ps, int index, String strVal, int length) Binds specified value to parameter at specified index that is bound to CHAR column.
void	defineColumnTypeForResult(PreparedStatement ps, List columns) Defines column type for result.
void	initialize(DatabaseMetaData metaData, String identifier) This method is called immediately after an instance implementing this interface is created.

Method Detail

initialize

void initialize(DatabaseMetaData metaData,
                String identifier)
         throws SQLException

This method is called immediately after an instance implementing this interface is created. The implementation can initialize itself using supplied metaData.

Parameters:

metaData - DatbaseMetaData of the database for which an instance implementing this interface is ingratiated.

identifier - Identifier of object used to obtain databaseMetaData. This can be null in non managed environment.

Throws:

SQLException

defineColumnTypeForResult

void defineColumnTypeForResult(PreparedStatement ps,
                               List columns)
                        throws SQLException

Defines column type for result.

Parameters:

ps - java.sql.PreparedStatement

columns - List of ColumnElement corresponding to select clause

Throws:

SQLException

bindFixedCharColumn

void bindFixedCharColumn(PreparedStatement ps,
                         int index,
                         String strVal,
                         int length)
                  throws SQLException

Binds specified value to parameter at specified index that is bound to CHAR column.

Parameters:

ps - java.sql.PreparedStatement

index - Index of paramater marker in ps.

strVal - value that needs to bound.

length - length of the column to which strVal is bound.

Throws:

SQLException