Package com.google.appengine.api.blobstore

Class BlobInfo

java.lang.Object

com.google.appengine.api.blobstore.BlobInfo

All Implemented Interfaces:

Serializable

public class BlobInfo
extends Object
implements Serializable

BlobInfo contains metadata about a blob. This metadata is gathered by parsing the HTTP headers included in the blob upload.

See Also:

• RFC 1867 for the specification of HTTP file uploads.
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
BlobInfo(BlobKey blobKey, String contentType, Date creation, String filename, long size)
BlobInfo(BlobKey blobKey, String contentType, Date creation, String filename, long size, String md5Hash)
BlobInfo(BlobKey blobKey, String contentType, Date creation, String filename, long size, String md5Hash, @Nullable String gsObjectName)	Creates a BlobInfo by providing the BlobKey and all associated metadata.

Method Summary

Modifier and Type	Method	Description
boolean	equals(@Nullable Object obj)
BlobKey	getBlobKey()	Returns the BlobKey of the Blob this BlobInfo describes.
String	getContentType()	Returns the MIME Content-Type provided in the HTTP header during upload of this Blob.
Date	getCreation()	Returns the time and date the blob was upload.
String	getFilename()	Returns the file included in the Content-Disposition HTTP header during upload of this Blob.
@Nullable String	getGsObjectName()	Returns the object name of this Blob, if it is stored in Google Cloud Storage, in the form /[bucket-name]/[object-name].
String	getMd5Hash()	Returns the md5Hash of this Blob.
long	getSize()	Returns the size in bytes of this Blob.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Details

BlobInfo

public BlobInfo(BlobKey blobKey,
 String contentType,
 Date creation,
 String filename,
 long size,
 String md5Hash,
 @Nullable String gsObjectName)

Creates a BlobInfo by providing the BlobKey and all associated metadata. This is typically done by the API on the developer's behalf.

Parameters:

blobKey - the BlobKey of the Blob.

contentType - the MIME Content-Type provided in the HTTP header during upload of this Blob.

creation - the time and date the blob was uploaded.

filename - the file included in the Content-Disposition HTTP header during upload of this Blob.

size - the size in bytes of this Blob.

md5Hash - the md5Hash of this Blob.

gsObjectName - the object name of this Blob, if it is stored on Google Cloud Storage, null otherwise.

BlobInfo

public BlobInfo(BlobKey blobKey,
 String contentType,
 Date creation,
 String filename,
 long size,
 String md5Hash)

BlobInfo

public BlobInfo(BlobKey blobKey,
 String contentType,
 Date creation,
 String filename,
 long size)

Method Details

getBlobKey

public BlobKey getBlobKey()

Returns the BlobKey of the Blob this BlobInfo describes.

getContentType

public String getContentType()

Returns the MIME Content-Type provided in the HTTP header during upload of this Blob.

getCreation

public Date getCreation()

Returns the time and date the blob was upload.

getFilename

public String getFilename()

Returns the file included in the Content-Disposition HTTP header during upload of this Blob.

getSize

public long getSize()

Returns the size in bytes of this Blob.

getMd5Hash

public String getMd5Hash()

Returns the md5Hash of this Blob.

getGsObjectName

public @Nullable String getGsObjectName()

Returns the object name of this Blob, if it is stored in Google Cloud Storage, in the form /[bucket-name]/[object-name]. Returns null if the Blob is stored in Blobstorage.

equals

public boolean equals(@Nullable Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object