org.vrspace.server.db
Class TextDB

java.lang.Object
  org.vrspace.server.DB
      org.vrspace.server.db.TextDB

public class TextDB

extends DB

Database class

Field Summary

Fields inherited from class org.vrspace.server.DB

cache

Constructor Summary

TextDB()

Method Summary

void	commit() Saves the file
void	connect(java.lang.String fileName) Connect to file
java.lang.String	create(java.lang.String fileName) create a new database if does not exist
void	delete(java.lang.Object obj) Not implemented.
void	disconnect() Disconnect, commit all changes
java.lang.Object	get(java.lang.Object obj) Not implemented.
java.lang.Object	get(java.lang.String className, long id) Not implemented.
java.lang.Object	get(java.lang.String className, java.lang.String field, java.lang.Object value) Not implemented.
java.lang.Object[]	getAll(java.lang.String className) Not implemented.
java.lang.String[]	getClasses() Returns all VRObject Classes stored in the database.
java.lang.Object[]	getRange(java.lang.Object o1, java.lang.Object o2) Not implemented.
java.lang.Object[]	getRange(java.lang.String className, java.lang.String field, java.lang.Object value) Not implemented.
void	put(java.lang.Object obj) Not implemented.
void	update(Request r) Not implemented.

Methods inherited from class org.vrspace.server.DB

load, load, load

Methods inherited from class java.lang.Object

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

Constructor Detail

TextDB

public TextDB()

Method Detail

create

public java.lang.String create(java.lang.String fileName)
                        throws java.lang.Exception

Description copied from class: DB

create a new database if does not exist

Specified by:

create in class DB

Parameters:

fileName - Database name

Returns:

String to use as parameter to connect()

Throws:

java.lang.Exception

See Also:

DB.connect(java.lang.String)

connect

public void connect(java.lang.String fileName)
             throws java.lang.Exception

Connect to file

Specified by:

connect in class DB

Throws:

java.lang.Exception

disconnect

public void disconnect()

Disconnect, commit all changes

Specified by:

disconnect in class DB

commit

public void commit()

Saves the file

Specified by:

commit in class DB

get

public java.lang.Object get(java.lang.Object obj)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

get in class DB

getAll

public java.lang.Object[] getAll(java.lang.String className)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

getAll in class DB

delete

public void delete(java.lang.Object obj)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

delete in class DB

getClasses

public java.lang.String[] getClasses()
                              throws java.lang.Exception

Returns all VRObject Classes stored in the database.

Specified by:

getClasses in class DB

Throws:

java.lang.Exception

get

public java.lang.Object get(java.lang.String className,
                            long id)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

get in class DB

get

public java.lang.Object get(java.lang.String className,
                            java.lang.String field,
                            java.lang.Object value)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

get in class DB

getRange

public java.lang.Object[] getRange(java.lang.String className,
                                   java.lang.String field,
                                   java.lang.Object value)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

getRange in class DB

getRange

public java.lang.Object[] getRange(java.lang.Object o1,
                                   java.lang.Object o2)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

getRange in class DB

put

public void put(java.lang.Object obj)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

put in class DB

update

public void update(Request r)

Not implemented. This DB depends on cache and only commit() does something.

Specified by:

update in class DB