org.iota.jota.store

Interface Store

All Known Implementing Classes:

EnvironmentStore, FlatFileStore, IotaClientStore, IotaFileStore, JsonFlatFileStore, MemoryStore, PropertiesStore

public interface Store

Method Summary

Modifier and Type	Method and Description
boolean	canWrite() Some stores like environment variables can't write.
Serializable	delete(String key) Delete a field form the store
Serializable	get(String key)
<T extends Serializable> T	get(String key, T def) Gets a value from the store
Map<String,Serializable>	getAll() Returns all the values in this store
void	load() Loads this store into cache
void	save(boolean closeResources) Saves this store onto its storage method.
<T extends Serializable> T	set(String key, T value) Sets a value in the store

Method Detail

load

void load()
   throws Exception

Loads this store into cache

Throws:

Exception

save

void save(boolean closeResources)
   throws Exception

Saves this store onto its storage method.

Parameters:

closeResources - if we want to clean up (final safe before exit)

Throws:

Exception

get

Serializable get(String key)

Parameters:

key -

Returns:

get

<T extends Serializable> T get(String key,
                               T def)

Gets a value from the store

Parameters:

key - The field to look for

def - The object to return when the key doesn't have a field

Returns:

the requested value, or the default when the key didn't exist

set

<T extends Serializable> T set(String key,
                               T value)

Sets a value in the store

Parameters:

key - The field to set the value

value - The value to set

Returns:

The old value, or null if there was none

getAll

Map<String,Serializable> getAll()

Returns all the values in this store

Returns:

Map of values

canWrite

boolean canWrite()

Some stores like environment variables can't write. Those stores can't be used in account storage.

Returns:

delete

Serializable delete(String key)

Delete a field form the store

Parameters:

key - the key we want to delete

Returns:

The deleted value, or null if there was none