com.db4o.io

Interface Storage

All Known Implementing Classes:

CachingStorage, FileStorage, IoAdapterStorage, MemoryStorage, NonFlushingStorage, PagingMemoryStorage, StorageDecorator

public interface Storage

Base interface for Storage adapters that open a Bin to store db4o database data to.

See Also:

FileConfiguration.storage(Storage)

Method Summary

Methods

Modifier and Type	Method and Description
void	delete(java.lang.String uri) Deletes the bin for the given URI from the storage.
boolean	exists(java.lang.String uri) returns true if a Bin (file or memory) exists with the passed name.
Bin	open(BinConfiguration config) opens a Bin to store db4o database data.
void	rename(java.lang.String oldUri, java.lang.String newUri) Renames the bin for the given old URI to the new URI.

Method Detail

open

Bin open(BinConfiguration config)
         throws Db4oIOException

opens a Bin to store db4o database data.

Throws:

Db4oIOException

exists

boolean exists(java.lang.String uri)

returns true if a Bin (file or memory) exists with the passed name.

delete

void delete(java.lang.String uri)
            throws java.io.IOException

Deletes the bin for the given URI from the storage.

Parameters:

uri - bin URI

Throws:

java.io.IOException - if the bin could not be deleted

Since:

7.9

rename

void rename(java.lang.String oldUri,
          java.lang.String newUri)
            throws java.io.IOException

Renames the bin for the given old URI to the new URI. If a bin for the new URI exists, it will be overwritten.

Parameters:

oldUri - URI of the existing bin

newUri - future URI of the bin

Throws:

java.io.IOException - if the bin could not be deleted

Since:

7.9