org.opensubsystems.core.persist.db
Class DatabaseDeleteSingleDataObjectOperation

java.lang.Object
  org.opensubsystems.core.persist.db.DatabaseOperation
      org.opensubsystems.core.persist.db.DatabaseUpdateOperation
          org.opensubsystems.core.persist.db.DatabaseDeleteSingleDataObjectOperation

All Implemented Interfaces:

DatabaseOperations

public class DatabaseDeleteSingleDataObjectOperation
extends DatabaseUpdateOperation

Adapter to simplify writing of database updates which delete single data object, which takes care of requesting and returning connections, transaction management, query preparation and exception handling.

Version:

$Id: DatabaseDeleteSingleDataObjectOperation.java,v 1.8 2007/01/28 06:54:42 bastafidli Exp $

Author:

Julian Legeny

Code reviewer:

Miro Halas

Code reviewed:

1.6 2007/01/07 06:14:18 bastafidli

Field Summary

Fields inherited from class org.opensubsystems.core.persist.db.DatabaseOperation

m_data, m_dbschema, m_factory, m_returnData, m_strQuery

Fields inherited from interface org.opensubsystems.core.persist.db.DatabaseOperations

DBOP_DELETE, DBOP_INSERT, DBOP_SELECT, DBOP_UPDATE

Constructor Summary

DatabaseDeleteSingleDataObjectOperation(DatabaseFactoryImpl factory, java.lang.String strQuery, ModifiableDatabaseSchema schema, int iId, int iDomainId)
Copy constructor to use when database update doesn't require any prepared statement.

Method Summary

protected void

performOperation(DatabaseFactoryImpl dbfactory, java.sql.Connection cntConnection, java.sql.PreparedStatement pstmQuery) Define content of this method to perform the database operation using the provided connection and optional prepared statement.

Methods inherited from class org.opensubsystems.core.persist.db.DatabaseUpdateOperation

executeUpdate, handleKnownError, handleSQLException, handleUnknownError, prepareData, setValuesForInsert, setValuesForUpdate

Methods inherited from class org.opensubsystems.core.persist.db.DatabaseOperation

getReturnData, setReturnData

Methods inherited from class java.lang.Object

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

Constructor Detail

DatabaseDeleteSingleDataObjectOperation

public DatabaseDeleteSingleDataObjectOperation(DatabaseFactoryImpl factory,
                                               java.lang.String strQuery,
                                               ModifiableDatabaseSchema schema,
                                               int iId,
                                               int iDomainId)

Copy constructor to use when database update doesn't require any prepared statement.

Parameters:

factory - - factory which is executing this operation

strQuery - - sql query that has to be processed

schema - - schema to use to execute database dependent operations

iId - - ID of data object to delete

iDomainId - - ID of domain the data object belongs to

Method Detail

performOperation

protected void performOperation(DatabaseFactoryImpl dbfactory,
                                java.sql.Connection cntConnection,
                                java.sql.PreparedStatement pstmQuery)
                         throws OSSException,
                                java.sql.SQLException

Define content of this method to perform the database operation using the provided connection and optional prepared statement.

Overrides:

performOperation in class DatabaseUpdateOperation

Parameters:

dbfactory - - database factory used for this operation

cntConnection - - ready to use connection to perform the database operation. No need to return this connection.

pstmQuery - - prepared statement for query passed in as a parameter to the constructor. No need to close this statement. If no query was passed into constructor, this will be null.

Throws:

OSSException - - an error has occured

java.sql.SQLException - - an error has occured