org.apache.jackrabbit.mk.blobs
Interface BlobStore

All Known Implementing Classes:

AbstractBlobStore, DbBlobStore, FileBlobStore, MemoryBlobStore

public interface BlobStore

An interface to store and read large binary objects.

Method Summary

String	addBlob(String tempFilePath) Write a blob from a temporary file.
void	close()
long	getBlobLength(String blobId)
int	readBlob(String blobId, long pos, byte[] buff, int off, int length)
String	writeBlob(InputStream in) Write a blob from an input stream.

Method Detail

addBlob

String addBlob(String tempFilePath)
               throws Exception

Write a blob from a temporary file. The temporary file is removed afterwards. A file based blob stores might simply rename the file, so that no additional writes are necessary.

Parameters:

tempFilePath - the temporary file

Returns:

the blob id

Throws:

Exception

writeBlob

String writeBlob(InputStream in)
                 throws Exception

Write a blob from an input stream. This method closes the input stream.

Parameters:

in - the input stream

Returns:

the blob id

Throws:

Exception

readBlob

int readBlob(String blobId,
             long pos,
             byte[] buff,
             int off,
             int length)
             throws Exception

Throws:

Exception

getBlobLength

long getBlobLength(String blobId)
                   throws Exception

Throws:

Exception

close

void close()