org.hisp.quick

Interface BatchHandler<T>

All Known Implementing Classes:

AbstractBatchHandler

public interface BatchHandler<T>

Interface responsible for performing batch and regular JDBC operations. Batch insert operations can be achieved with the addObject( Object ) method, which will utilize multiple insert SQL statements for high performance.

Author:

Lars Helge Overland

Method Summary

Modifier and Type	Method and Description
boolean	addObject(T object) Adds an object to the BatchHandler.
void	deleteObject(T object) Deletes an object.
T	findObject(T arg) Retrieves an object, using the unique columns of the given object as argument.
void	flush() Flushes the BatchHandler by executing a potential remaining statement, and closing the underlying statement object and the database connection.
JdbcConfiguration	getConfiguration() Returns the current JdbcConfiguration.
BatchHandler<T>	init() Initializes the BatchHandler by acquiring a database connection, creating a statement object and initializing a SQL statement.
boolean	objectExists(T object) Checks whether this object exists in the database or not.
void	updateObject(T object) Updates an object.

Method Detail

init

BatchHandler<T> init()

Initializes the BatchHandler by acquiring a database connection, creating a statement object and initializing a SQL statement.

Returns:

this batch handler.

getConfiguration

JdbcConfiguration getConfiguration()

Returns the current JdbcConfiguration.

Returns:

jdbc configuration.

addObject

boolean addObject(T object)

Adds an object to the BatchHandler. Checks if the value is a duplicate, i.e. already added to this BatchHandler instance, before adding it.

Parameters:

object - the object to add.

Returns:

true if the object was added, false if not.

findObject

T findObject(T arg)

Retrieves an object, using the unique columns of the given object as argument.

Parameters:

arg - the argument object, identifier properties must be populated.

Returns:

an object.

updateObject

void updateObject(T object)

Updates an object.

Parameters:

object - the object to update.

deleteObject

void deleteObject(T object)

Deletes an object.

Parameters:

object - the object to delete.

objectExists

boolean objectExists(T object)

Checks whether this object exists in the database or not.

Parameters:

object - the object to check.

Returns:

true if the object exists, false if not.

flush

void flush()

Flushes the BatchHandler by executing a potential remaining statement, and closing the underlying statement object and the database connection.