com.google.appengine.api.datastore
Class Blob

java.lang.Object
  com.google.appengine.api.datastore.Blob

All Implemented Interfaces:

java.io.Serializable

public final class Blob
extends java.lang.Object
implements java.io.Serializable

Blob contains an array of bytes. This byte array can be no bigger than 1MB. To store files, particularly files larger than this 1MB limit, look at the Blobstore API.

See Also:

Serialized Form

Constructor Summary

Blob(byte[] bytes)
Construct a new Blob with the specified bytes.

Method Summary

boolean	equals(java.lang.Object object) Two Blob objects are considered equal if their contained bytes match exactly.
byte[]	getBytes() Return the bytes stored in this Blob.
int	hashCode()
java.lang.String	toString() Simply prints the number of bytes contained in this Blob.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Blob

public Blob(byte[] bytes)

Construct a new Blob with the specified bytes. Since Blobs can be quite large we do not perform a defensive copy of the provided byte array. It is the programmer's responsibility to avoid making changes to this array once the Blob has been constructed.

Method Detail

getBytes

public byte[] getBytes()

Return the bytes stored in this Blob.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object object)

Two Blob objects are considered equal if their contained bytes match exactly.

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Simply prints the number of bytes contained in this Blob.

Overrides:

toString in class java.lang.Object