org.hyperledger.fabric.gateway.spi

Interface WalletStore

public interface WalletStore

Interface for store implementations that provide backing storage for identities in a Wallet.

Method Summary

Modifier and Type	Method and Description
InputStream	get(String label) Get data from the store.
Set<String>	list() List the labels for all stored data.
void	put(String label, InputStream data) Put data into the store.
void	remove(String label) Remove data from the store.

Method Detail

remove

void remove(String label)
     throws IOException

Remove data from the store. If the data does not exist, this does nothing.

Parameters:

label - Name used to key the data.

Throws:

IOException - if an error occurs accessing underlying persistent storage.

get

InputStream get(String label)
         throws IOException

Get data from the store.

Parameters:

label - Name used to key the data.

Returns:

The data, if it exists; otherwise null.

Throws:

IOException - if an error occurs accessing underlying persistent storage.

list

Set<String> list()
          throws IOException

List the labels for all stored data.

Returns:

Labels.

Throws:

IOException - if an error occurs accessing underlying persistent storage.

put

void put(String label,
         InputStream data)
  throws IOException

Put data into the store. If data already exists for this label, it is overwritten.

Parameters:

label - Name used to key the data.

data - Data to be stored.

Throws:

IOException - if an error occurs accessing underlying persistent storage.