Package ch.tocco.nice2.persist.core.spi.binary

Interface BinaryAccessProvider

All Known Implementing Classes:

AbstractBinaryAccessProvider, S3AccessProvider

public interface BinaryAccessProvider

Interface for strategies which manage saving/loading of objects/file into some sort of store.

Method Summary

Modifier and Type	Method	Description
Set<com.google.common.hash.HashCode>	findUnreferencedBinaries(Connection connection, @Nullable Integer limit)
Binary	loadBinary(com.google.common.hash.HashCode hashCode, long size, String mimeType, String fileExtension)	create a Binary instance without executing an sql query, this method should be used if the data from _nice_binary has already been loaded.
Binary	loadBinary(com.google.common.hash.HashCode hashCode, Connection connection)	load an object from the store
boolean	removeBinary(com.google.common.hash.HashCode hashCode, Connection connection)	remove a binary from storage
com.google.common.hash.HashCode	storeBinary(Binary binary, Connection connection)	save an object into the store

Method Details

loadBinary

Binary loadBinary(com.google.common.hash.HashCode hashCode,
 Connection connection)

load an object from the store

Parameters:

hashCode - hash/id of the file to load

connection - Connection to use for database operations

Returns:

the object

loadBinary

Binary loadBinary(com.google.common.hash.HashCode hashCode,
 long size,
 String mimeType,
 String fileExtension)

create a Binary instance without executing an sql query, this method should be used if the data from _nice_binary has already been loaded.

storeBinary

com.google.common.hash.HashCode storeBinary(Binary binary,
 Connection connection)

save an object into the store

Parameters:

binary - the object to save

connection - Connection to use for database operations

Returns:

the hash/id of the saved object

removeBinary

boolean removeBinary(com.google.common.hash.HashCode hashCode,
 Connection connection)

remove a binary from storage

Parameters:

hashCode - the hash of the object to remove

connection - Connection to use for database operations

findUnreferencedBinaries

Set<com.google.common.hash.HashCode> findUnreferencedBinaries(Connection connection,
 @Nullable
 @Nullable Integer limit)

Returns:

all binary hashes that are no longer referenced and may be removed