example.filestorage
Interface FileStorageDAO

All Known Implementing Classes:

DerbyFileStorageDAO

public interface FileStorageDAO

File Storage Data Access Object

Author:

Sean C. Sullivan

Method Summary

boolean	deleteFile(long id)
boolean	fileExists(java.lang.String filename)
java.util.List	getAllFiles()
byte[]	getFileData(long id)
void	getFileData(long id, java.io.OutputStream out)
FileInfo	getFileInfo(long id)
FileInfo	getFileInfo(java.lang.String filename)
void	overwriteFile(long id, java.io.InputStream is, int filesize)
long	saveFile(java.lang.String filename, java.io.InputStream is, int filesize)

Method Detail

getFileInfo

FileInfo getFileInfo(long id)

getFileInfo

FileInfo getFileInfo(java.lang.String filename)

getAllFiles

java.util.List getAllFiles()

Returns:

a list that contains zero or more FileInfo objects

saveFile

long saveFile(java.lang.String filename,
              java.io.InputStream is,
              int filesize)

overwriteFile

void overwriteFile(long id,
                   java.io.InputStream is,
                   int filesize)

deleteFile

boolean deleteFile(long id)

fileExists

boolean fileExists(java.lang.String filename)

getFileData

void getFileData(long id,
                 java.io.OutputStream out)

getFileData

byte[] getFileData(long id)