org.apache.xindice.core
Class DatabaseChangeObserver

java.lang.Object
  |
  +--org.apache.xindice.core.DBObserver
        |
        +--org.apache.xindice.core.DatabaseChangeObserver

public class DatabaseChangeObserver

extends DBObserver

DatabaseChangeObserver is going to handle changes to collections by flushing the apporate collection Filer. This current version we are only going to worry about document changes and their Filer storage are kept updated. Todd Byrne

Constructor Summary

DatabaseChangeObserver()

Method Summary

void	createCollection(Collection col) Called after Collection.create()
void	dropCollection(Collection col) Called before Collection.drop()
void	dropDocument(Collection col, Key key) Queues the collection to be flushed by the FlushTask synchronized by the hashtable
void	flushDatabaseConfig(Database db, Configuration cfg) Called after Database.flushConfig()
void	loadDocument(Collection col, Record record, org.w3c.dom.Document document) Called after Collection.getDocument()
void	putDocument(Collection col, Key key, org.w3c.dom.Document document, boolean create) Called after Collection.putDocument()
void	setCollectionConfig(Collection col, Configuration cfg) Called after Collection.setConfig()
void	setDatabaseConfig(Database db, Map collections, Configuration cfg) Called after Database.setConfig()

Methods inherited from class org.apache.xindice.core.DBObserver

getInstance, setInstance

Methods inherited from class java.lang.Object

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

Constructor Detail

DatabaseChangeObserver

public DatabaseChangeObserver()

Method Detail

dropDocument

public void dropDocument(Collection col,
                         Key key)
                  throws DBException

Queues the collection to be flushed by the FlushTask synchronized by the hashtable

Overrides:

dropDocument in class DBObserver

Parameters:

col - Collection

key - Key

Throws:

DBException -

putDocument

public void putDocument(Collection col,
                        Key key,
                        org.w3c.dom.Document document,
                        boolean create)
                 throws DBException

Description copied from class: DBObserver

Called after Collection.putDocument()

Overrides:

putDocument in class DBObserver

Parameters:

col - Collection

key - Key

document - Document

create - boolean

Throws:

DBException -

createCollection

public void createCollection(Collection col)
                      throws DBException

Description copied from class: DBObserver

Called after Collection.create()

Overrides:

createCollection in class DBObserver

Parameters:

col - Collection

Throws:

DBException -

loadDocument

public void loadDocument(Collection col,
                         Record record,
                         org.w3c.dom.Document document)
                  throws DBException

Description copied from class: DBObserver

Called after Collection.getDocument()

Overrides:

loadDocument in class DBObserver

Parameters:

col - Collection

record - Record

document - Document

Throws:

DBException -

dropCollection

public void dropCollection(Collection col)
                    throws DBException

Description copied from class: DBObserver

Called before Collection.drop()

Overrides:

dropCollection in class DBObserver

Parameters:

col - Collection

Throws:

DBException -

flushDatabaseConfig

public void flushDatabaseConfig(Database db,
                                Configuration cfg)

Description copied from class: DBObserver

Called after Database.flushConfig()

Overrides:

flushDatabaseConfig in class DBObserver

Parameters:

db - Database

cfg - Configuration

setCollectionConfig

public void setCollectionConfig(Collection col,
                                Configuration cfg)

Description copied from class: DBObserver

Called after Collection.setConfig()

Overrides:

setCollectionConfig in class DBObserver

Parameters:

col - Collection

cfg - Configuration

setDatabaseConfig

public void setDatabaseConfig(Database db,
                              Map collections,
                              Configuration cfg)

Description copied from class: DBObserver

Called after Database.setConfig()

Overrides:

setDatabaseConfig in class DBObserver

Parameters:

db - Database

collections - Map

cfg - Configuration