Constructor Detail

• SequenceDuringKeyGenerator

  public SequenceDuringKeyGenerator​(PersistenceFactory factory,
                                    java.util.Properties params,
                                    int sqlType)
                             throws MappingException

  Initialize the SEQUENCE key generator for DURING_INSERT style generateKey(java.sql.Connection, java.lang.String, java.lang.String) is never called.

  Parameters:

  factory - A PersistenceFactory instance.

  params - Database engine specific properties.

  sqlType - A SQLTypidentifier.

  Throws:

  MappingException - if this key generator is not compatible with the persistance factory.

Method Detail

• generateKey

  public java.lang.Object generateKey​(java.sql.Connection conn,
                                      java.lang.String tableName,
                                      java.lang.String primKeyName)
                               throws PersistenceException

  Description copied from interface: KeyGenerator
  Generate a new key for the specified table. This method is called when a new object is about to be created. In some environments the name of the owner of the object is known, e.g. the principal in a J2EE server. This method is never called for DURING_INSERT key generators.

  Parameters:

  conn - An open connection within the given transaction.

  tableName - The table name.

  primKeyName - The primary key name.

  Returns:

  A new key.

  Throws:

  PersistenceException - An error occured talking to persistent storage.

• isInSameConnection

  public boolean isInSameConnection()

  Is key generated in the same connection as INSERT? For DURING_INSERT style this method is never called.

  Returns:

  {code}True{code} If this instance is in same JDBC Connection.

• buildStatement

  public KeyGenerator buildStatement​(SQLEngine engine)

  Builds the SQL insert statement.

  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.

  Returns:

  KeyGenerator

• executeStatement

  public java.lang.Object executeStatement​(Database database,
                                           CastorConnection conn,
                                           Identity identity,
                                           ProposedEntity entity)
                                    throws PersistenceException

  Executes the SQL statement after preparing the PreparedStatement.

  Parameters:

  database - A database instance.

  conn - CastorConnection holding connection and PersistenceFactory to be used to create statement.

  identity - Identity of the object to insert.

  entity - Entity instance from which field values to be fetached to bind with sql insert statement.

  Returns:

  Identity

  Throws:

  PersistenceException - If failed to insert record into database. This could happen if a database access error occurs, If identity size mismatches, unable to retrieve Identity, If provided Identity is null, If Extended engine is null.