Package de.businesscode.bcdui.vfs.web

Class VFSServlet.JdbcFileDAO

java.lang.Object

de.businesscode.bcdui.vfs.web.VFSServlet.JdbcFileDAO

All Implemented Interfaces:

VFSServlet.FileDAO

Enclosing class:

VFSServlet

public static class VFSServlet.JdbcFileDAO
extends Object
implements VFSServlet.FileDAO

unfortunately we cant work with DatabaseFileSystem / DatabaseFileObject directly to store data, so we do here lowlevel BLOB handling, works with bcd_virtualFileSystem binding-set NOT THREADSAFE

Constructor Summary

Constructors

Constructor	Description
JdbcFileDAO(DataSource ds)

Method Summary

Modifier and Type	Method	Description
void	commit()	for implementations with transaction handling
void	delete(Collection<String> uris)	deletes uris
protected Connection	getConnection()	connection used, must not be closed, must not change autocommit flag
Collection<String>	getWrittenFiles()	this method must not be called prior to VFSServlet.FileDAO.commit()
void	write(String uri, InputStream inputStream)	writes file

Methods inherited from class java.lang.Object

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

Constructor Details

JdbcFileDAO

public JdbcFileDAO(DataSource ds)

Method Details

getConnection

protected Connection getConnection()

connection used, must not be closed, must not change autocommit flag

Returns:

write

public void write(String uri,
 InputStream inputStream)

Description copied from interface: VFSServlet.FileDAO

writes file

Specified by:

write in interface VFSServlet.FileDAO

commit

public void commit()

Description copied from interface: VFSServlet.FileDAO

for implementations with transaction handling

Specified by:

commit in interface VFSServlet.FileDAO

getWrittenFiles

public Collection<String> getWrittenFiles()

Description copied from interface: VFSServlet.FileDAO

this method must not be called prior to VFSServlet.FileDAO.commit()

Specified by:

getWrittenFiles in interface VFSServlet.FileDAO

Returns:

collection of finally written files into filesystem with their absolute path

delete

public void delete(Collection<String> uris)

Description copied from interface: VFSServlet.FileDAO

deletes uris

Specified by:

delete in interface VFSServlet.FileDAO