de.lmu.ifi.dbs.elki.database.datastore.memory
Class MapStore<T>

java.lang.Object
  de.lmu.ifi.dbs.elki.database.datastore.memory.MapStore<T>

Type Parameters:

T - Representation object type

All Implemented Interfaces:

DataStore<T>, WritableDataStore<T>, Result

public class MapStore<T>
extends Object
implements WritableDataStore<T>

A class to answer representation queries using a map. Basically, it is just a wrapper around a regular map.

Field Summary

private Map<DBID,T>

data Storage Map

Constructor Summary

MapStore()
Constructor.

MapStore(Map<DBID,T> data)
Constructor.

Method Summary

void	delete(DBID id) Delete the contents for a particular ID and notifies the registered listeners.
void	destroy() Deallocate the storage, freeing the memory and notifies the registered listeners.
T	get(DBID id) Retrieves an object from the storage.
String	getLongName() A "pretty" name for the result, for use in titles, captions and menus.
String	getShortName() A short name for the result, useful for file names.
T	put(DBID id, T value) Associates the specified value with the specified id in this storage.

Methods inherited from class java.lang.Object

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

Field Detail

data

private Map<DBID,T> data

Storage Map

Constructor Detail

MapStore

public MapStore(Map<DBID,T> data)

Constructor.

Parameters:

data - Existing map

MapStore

public MapStore()

Constructor.

Method Detail

get

public T get(DBID id)

Description copied from interface: DataStore

Retrieves an object from the storage.

Specified by:

get in interface DataStore<T>

Parameters:

id - Database ID.

Returns:

Object or null

put

public T put(DBID id,
             T value)

Description copied from interface: WritableDataStore

Associates the specified value with the specified id in this storage. If the storage previously contained a value for the id, the previous value is replaced by the specified value.

Specified by:

put in interface WritableDataStore<T>

Parameters:

id - Database ID.

value - Value to store.

Returns:

previous value

destroy

public void destroy()

Description copied from interface: WritableDataStore

Deallocate the storage, freeing the memory and notifies the registered listeners.

Specified by:

destroy in interface WritableDataStore<T>

delete

public void delete(DBID id)

Description copied from interface: WritableDataStore

Delete the contents for a particular ID and notifies the registered listeners.

Specified by:

delete in interface WritableDataStore<T>

Parameters:

id - Database ID.

getLongName

public String getLongName()

Description copied from interface: Result

A "pretty" name for the result, for use in titles, captions and menus.

Specified by:

getLongName in interface Result

Returns:

result name

getShortName

public String getShortName()

Description copied from interface: Result

A short name for the result, useful for file names.

Specified by:

getShortName in interface Result

Returns:

result name