org.castor.cpa.persistence.sql.engine
Class SQLStatementUpdateCheck

java.lang.Object
  extended by org.castor.cpa.persistence.sql.engine.SQLStatementUpdateCheck

public final class SQLStatementUpdateCheck
extends java.lang.Object

SQLStatementUpdatCheck class to check whether the new SQL update statement has failed because entity has been removed previously from persistent storage or the object has been modified before. If the object has been modified an ObjectModifiedException and if object has been deleted an ObjectDeletedException is raised.

Version:
$Revision: 8285 $ $Date: 2006-04-25 15:08:23 -0600 (Tue, 25 Apr 2006) $
Author:
Assaf Arkin, Thomas Yip, Bruce Snyder, Werner Guttmann, Ralf Joachim, Ahmad Hassan

Constructor Summary
SQLStatementUpdateCheck(SQLEngine engine, PersistenceFactory factory)
          Constructor.
 
Method Summary
 void updateFailureCheck(java.sql.Connection conn, Identity identity)
          This function checks whether the object specified in the statement has been previously removed from the persistent storage or has been modified.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SQLStatementUpdateCheck

public SQLStatementUpdateCheck(SQLEngine engine,
                               PersistenceFactory factory)
Constructor.

Parameters:
engine - SQL engine for all persistence operations at entities of the type this class is responsible for. Holds all required information of the entity type.
factory - Persistence factory for the database engine the entity is persisted in. Used to format the SQL statement.
Method Detail

updateFailureCheck

public void updateFailureCheck(java.sql.Connection conn,
                               Identity identity)
                        throws PersistenceException
This function checks whether the object specified in the statement has been previously removed from the persistent storage or has been modified. If the object has been modified an ObjectModifiedException and if object has been deleted an ObjectDeletedException is raised.

Parameters:
conn - An Open JDBC Connection.
identity - Identity of the object to check for availability.
Throws:
PersistenceException - If a database access error occurs, identity size mismatches, column length mismatches, ObjectDeletedException if object had been deleted or ObjectModifiedException if object had been modified before.


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