com.netflix.astyanax.recipes.storage

Interface ChunkedStorageProvider

All Known Implementing Classes:

CassandraChunkedStorageProvider

public interface ChunkedStorageProvider

Method Summary

Methods

Modifier and Type	Method and Description
void	deleteObject(java.lang.String objectName, java.lang.Integer chunkCount) Delete a chunk
int	getDefaultChunkSize()
java.nio.ByteBuffer	readChunk(java.lang.String objectName, int chunkId) Read the request chunk id from the storage
ObjectMetadata	readMetadata(java.lang.String objectName) Retrieve information for a file
int	writeChunk(java.lang.String objectName, int chunkId, java.nio.ByteBuffer data, java.lang.Integer ttl) Write a single chunk to the storage
void	writeMetadata(java.lang.String objectName, ObjectMetadata attr) Persist all attributes for an object.

Method Detail

writeChunk

int writeChunk(java.lang.String objectName,
             int chunkId,
             java.nio.ByteBuffer data,
             java.lang.Integer ttl)
               throws java.lang.Exception

Write a single chunk to the storage

Parameters:

chunk -

Throws:

java.lang.Exception

readChunk

java.nio.ByteBuffer readChunk(java.lang.String objectName,
                            int chunkId)
                              throws java.lang.Exception,
                                     com.netflix.astyanax.connectionpool.exceptions.NotFoundException

Read the request chunk id from the storage

Parameters:

name -

chunkId -

Throws:

java.lang.Exception

com.netflix.astyanax.connectionpool.exceptions.NotFoundException

deleteObject

void deleteObject(java.lang.String objectName,
                java.lang.Integer chunkCount)
                  throws java.lang.Exception

Delete a chunk

Parameters:

objectName -

chunkId -

Throws:

java.lang.Exception

writeMetadata

void writeMetadata(java.lang.String objectName,
                 ObjectMetadata attr)
                   throws java.lang.Exception

Persist all attributes for an object. Some attributes are written at the start of the operation but are updated after the file has been written with additional information such as the total number of chunks and the file size

Parameters:

objectName -

attr -

Throws:

java.lang.Exception

readMetadata

ObjectMetadata readMetadata(java.lang.String objectName)
                            throws java.lang.Exception,
                                   com.netflix.astyanax.connectionpool.exceptions.NotFoundException

Retrieve information for a file

Parameters:

objectName -

Throws:

java.lang.Exception

com.netflix.astyanax.connectionpool.exceptions.NotFoundException

getDefaultChunkSize

int getDefaultChunkSize()

Returns:

Return the preferred chunk size for this provider