org.jpox.store.rdbms
Class SchemaAutoStarter

java.lang.Object
  org.jpox.store.AbstractAutoStartMechanism
      org.jpox.store.rdbms.SchemaAutoStarter

All Implemented Interfaces:

AutoStartMechanism

public class SchemaAutoStarter
extends AbstractAutoStartMechanism

Implementation of an Auto-Start Mechanism for JPOX. This implementation stores the classes supported in a table in the datastore. It is initialised and read at startup of JPOX, and is continually updated during the lifetime of the calling application.

Version:

$Revision: 1.16 $

Field Summary

protected java.sql.Connection	conn
static java.lang.String	SCHEMA_TABLE Name of value for the autoStartMechanism property for this starter.
protected SchemaTable	schemaTable
protected RDBMSManager	storeMgr

Fields inherited from class org.jpox.store.AbstractAutoStartMechanism

LOCALISER, mode, open

Fields inherited from interface org.jpox.store.AutoStartMechanism

MODE_CHECKED, MODE_IGNORED, MODE_QUIET, NONE

Constructor Summary

SchemaAutoStarter(StoreManager store_mgr, ClassLoaderResolver clr)
Constructor.

Method Summary

void	addClass(StoreData data) Method to add a class to the supported list.
void	close() Closes a transaction for writting (add/delete) classes to the auto start mechanism
void	deleteAllClasses() Method to drop support for all current classes.
void	deleteClass(java.lang.String class_name) Method to drop support for a class.
java.util.Collection	getAllClassData() Accessor for the data for the classes supported.
java.lang.String	getStorageDescription() Utility to output the storage description for this mechanism.
boolean	isOpen() Whether it's open for writting (add/delete) classes to the auto start mechanism
void	open() Starts a transaction for writting (add/delete) classes to the auto start mechanism

Methods inherited from class org.jpox.store.AbstractAutoStartMechanism

getMode, setMode

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SCHEMA_TABLE

public static final java.lang.String SCHEMA_TABLE

Name of value for the autoStartMechanism property for this starter.

See Also:

Constant Field Values

schemaTable

protected SchemaTable schemaTable

storeMgr

protected RDBMSManager storeMgr

conn

protected java.sql.Connection conn

Constructor Detail

SchemaAutoStarter

public SchemaAutoStarter(StoreManager store_mgr,
                         ClassLoaderResolver clr)

Constructor.

Parameters:

store_mgr - The RDBMSManager managing the store that we are auto-starting.

clr - The ClassLoaderResolver

Method Detail

getAllClassData

public java.util.Collection getAllClassData()
                                     throws DatastoreInitialisationException

Accessor for the data for the classes supported.

Returns:

Collection of classes supported (StoreData). Collection of StoreData elements

Throws:

DatastoreInitialisationException

open

public void open()

Starts a transaction for writting (add/delete) classes to the auto start mechanism

Specified by:

open in interface AutoStartMechanism

Overrides:

open in class AbstractAutoStartMechanism

close

public void close()

Closes a transaction for writting (add/delete) classes to the auto start mechanism

Specified by:

close in interface AutoStartMechanism

Overrides:

close in class AbstractAutoStartMechanism

isOpen

public boolean isOpen()

Whether it's open for writting (add/delete) classes to the auto start mechanism

Specified by:

isOpen in interface AutoStartMechanism

Overrides:

isOpen in class AbstractAutoStartMechanism

Returns:

whether this is open for writting

addClass

public void addClass(StoreData data)

Method to add a class to the supported list.

Parameters:

data - Data for the class to add.

deleteClass

public void deleteClass(java.lang.String class_name)

Method to drop support for a class.

Parameters:

class_name - The class

deleteAllClasses

public void deleteAllClasses()

Method to drop support for all current classes.

getStorageDescription

public java.lang.String getStorageDescription()

Utility to output the storage description for this mechanism.

Returns:

The storage description