org.apache.jackrabbit.core.persistence.pool

Class BundleDbPersistenceManager.DbBlobStore

java.lang.Object

org.apache.jackrabbit.core.persistence.pool.BundleDbPersistenceManager.DbBlobStore

All Implemented Interfaces:

BundleDbPersistenceManager.CloseableBLOBStore, BLOBStore

Enclosing class:

BundleDbPersistenceManager

protected class BundleDbPersistenceManager.DbBlobStore
extends Object
implements BundleDbPersistenceManager.CloseableBLOBStore

Implementation of a blob store that stores the data inside the database

Field Summary

Fields

Modifier and Type	Field and Description
protected String	blobDeleteSQL
protected String	blobInsertSQL
protected String	blobSelectExistSQL
protected String	blobSelectSQL
protected String	blobUpdateSQL

Constructor Summary

Constructors

Constructor and Description
DbBlobStore()

Method Summary

Modifier and Type	Method and Description
void	close()
String	createId(PropertyId id, int index) Creates a unique identifier for the BLOB data associated with the given property id and value subscript.
InputStream	get(String blobId) Retrieves the BLOB data with the specified id as a binary stream.
void	put(String blobId, InputStream in, long size) Stores the BLOB data and returns a unique identifier.
boolean	remove(String blobId) Removes the BLOB data with the specified id.

Methods inherited from class java.lang.Object

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

Field Detail

blobInsertSQL

protected String blobInsertSQL

blobUpdateSQL

protected String blobUpdateSQL

blobSelectSQL

protected String blobSelectSQL

blobSelectExistSQL

protected String blobSelectExistSQL

blobDeleteSQL

protected String blobDeleteSQL

Constructor Detail

DbBlobStore

public DbBlobStore()
            throws SQLException

Throws:

SQLException

Method Detail

createId

public String createId(PropertyId id,
                       int index)

Creates a unique identifier for the BLOB data associated with the given property id and value subscript.

Specified by:

createId in interface BLOBStore

Parameters:

id - id of the property associated with the BLOB data

index - subscript of the value holding the BLOB data

Returns:

a string identifying the BLOB data

get

public InputStream get(String blobId)
                throws Exception

Retrieves the BLOB data with the specified id as a binary stream.

Specified by:

get in interface BLOBStore

Parameters:

blobId - identifier of the BLOB data as returned by BLOBStore.createId(PropertyId, int)

Returns:

an input stream that delivers the BLOB data

Throws:

Exception - if an error occured

put

public void put(String blobId,
                InputStream in,
                long size)
         throws Exception

Stores the BLOB data and returns a unique identifier.

Specified by:

put in interface BLOBStore

Parameters:

blobId - identifier of the BLOB data as returned by BLOBStore.createId(PropertyId, int)

in - stream containing the BLOB data

size - size of the BLOB data

Throws:

Exception - if an error occured

remove

public boolean remove(String blobId)
               throws Exception

Removes the BLOB data with the specified id.

Specified by:

remove in interface BLOBStore

Parameters:

blobId - identifier of the BLOB data as returned by BLOBStore.createId(PropertyId, int)

Returns:

true if BLOB data with the given id exists and has been successfully removed, false if there's no BLOB data with the given id.

Throws:

Exception - if an error occured

close

public void close()

Specified by:

close in interface BundleDbPersistenceManager.CloseableBLOBStore