org.castor.cpa.persistence.sql.keygen
Class AbstractAfterKeyGenerator
java.lang.Object
org.castor.cpa.persistence.sql.keygen.AbstractKeyGenerator
org.castor.cpa.persistence.sql.keygen.AbstractAfterKeyGenerator
- All Implemented Interfaces:
- KeyGenerator
- Direct Known Subclasses:
- IdentityKeyGenerator, SequenceAfterKeyGenerator
public abstract class AbstractAfterKeyGenerator
- extends AbstractKeyGenerator
Abstract class that implements the KeyGenerator interface for AFTER_INSERT style. The key
generator is used for producing identities for objects before they are created in the
database.
- Version:
- $Revision$ $Date: 2009-07-13 17:22:43 (Tue, 28 Jul 2009) $
- Author:
- Ahmad Hassan, Ralf Joachim
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
AbstractAfterKeyGenerator
public AbstractAfterKeyGenerator(PersistenceFactory factory,
java.util.Properties params)
- Constructor.
- Parameters:
factory
- Persistence factory for the database engine the entity is persisted in.
Used to format the SQL statementparams
- Parameters for key generator.
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,
java.sql.Connection conn,
Identity identity,
ProposedEntity entity)
throws PersistenceException
- Executes the SQL statement after preparing the PreparedStatement.
- Parameters:
database
- A database instance.conn
- An Open JDBC connection.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.
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