DatabaseSerializerImpl

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

org.openbandy.io.db
Class DatabaseSerializerImpl

java.lang.Object
  org.openbandy.io.db.DatabaseSerializerImpl

All Implemented Interfaces:: DatabaseSerializer, Serializer, StorageSerializer

public class DatabaseSerializerImpl
extends java.lang.Object
implements DatabaseSerializer
extends java.lang.Object
implements DatabaseSerializer

The Database Serializer provides a service to load and store serializable objects to respectively from a JDBC compliant database. Thus, in order to store a Serializable object, the DatabaseSerializerImpl creates a new DatabaseValueContainer object and passes it to the object that needs to be serialized, i.e., stored in the database. This object will fill the container as described in 3.2.2. Subsequently, the DatabaseSerializerImpl tests, if the given object already exists in the database, using the DatabaseStorage’s existsInStorage() method described below. Accordingly, it will either create an INSERT or an UPDATE statement from the container object, using the SqlStatement class. Finally, the DatabaseSerializerImpl invokes the DatabaseConnection instance, it got from the DatabaseStorage, to execute this statement. In all cases, the DatabaseSerializerImpl will update the Serializable object’s numeric identifier to the actual values used in the database. To load an object from the database, the DatabaseSerializerImpl must create the corresponding SELECT statement, again using the SqlStatement class. The resulting ResultSet is subsequently encapsulated in a DatabaseValueContainer object, which will be passed to the serializable object for deserialization. Every object gets stored in the database in its own table, whereas must hold: classname = tablename attributename = fieldname

(c) Copyright Philipp Bolliger 2007, ALL RIGHTS RESERVED.

Version:: 1.0
Author:: Philipp Bolliger (philipp@bolliger.name)

Field Summary

Fields inherited from interface org.openbandy.io.Serializer
`MODE_DATABASE, MODE_DEFAULT, MODE_RMS, MODE_STREAM`

Constructor Summary
`DatabaseSerializerImpl()`

Method Summary
`void`	`deserializeObject(Serializable serializable, SerializationBuffer serializationBuffer)` TODO comment!
`Storage`	`getStorage()` TODO describe purpose an usage
`boolean`	`load(Serializable serializable, int id)` Load an object that has been serialized before, refernced by the object's ID.
`void`	`serializeObject(Serializable serializable, SerializationBuffer serializationBuffer)` TODO comment!
`void`	`store(Serializable serializable)` TODO describe purpose an usage
`void`	`updateReferences(ObjectEntry objectEntry)`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail