com.mongodb.gridfs

Class GridFSDBFile

java.lang.Object

com.mongodb.gridfs.GridFSFile

com.mongodb.gridfs.GridFSDBFile

All Implemented Interfaces:

DBObject, BSONObject

public class GridFSDBFile
extends GridFSFile

This class enables to retrieve a GridFS file metadata and content. Operations include: - writing data to a file on disk or an OutputStream - getting each chunk as a byte array - getting an InputStream to stream the data into

Author:

antoine

Field Summary

Fields inherited from class com.mongodb.gridfs.GridFSFile

_fs

Constructor Summary

Constructors

Constructor and Description
GridFSDBFile()

Method Summary

Methods

Modifier and Type	Method and Description
InputStream	getInputStream() Returns an InputStream from which data can be read
long	writeTo(File f) Writes the file's data to a file on disk
long	writeTo(OutputStream out) Writes the file's data to an OutputStream
long	writeTo(String filename) Writes the file's data to a file on disk

Methods inherited from class com.mongodb.gridfs.GridFSFile

containsField, containsKey, get, getAliases, getChunkSize, getContentType, getFilename, getId, getLength, getMD5, getMetaData, getUploadDate, isPartialObject, keySet, markAsPartialObject, numChunks, put, putAll, putAll, removeField, save, setGridFS, setMetaData, toMap, toString, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

GridFSDBFile

public GridFSDBFile()

Method Detail

getInputStream

public InputStream getInputStream()

Returns an InputStream from which data can be read

Returns:

writeTo

public long writeTo(String filename)
             throws IOException

Writes the file's data to a file on disk

Parameters:

filename - the file name on disk

Returns:

Throws:

IOException

MongoException

writeTo

public long writeTo(File f)
             throws IOException

Writes the file's data to a file on disk

Parameters:

f - the File object

Returns:

Throws:

IOException

MongoException

writeTo

public long writeTo(OutputStream out)
             throws IOException

Writes the file's data to an OutputStream

Parameters:

out - the OutputStream

Returns:

Throws:

IOException

MongoException