de.lmu.ifi.dbs.elki.database.datastore.memory

Class ArrayRecordStore

java.lang.Object

de.lmu.ifi.dbs.elki.database.datastore.memory.ArrayRecordStore

All Implemented Interfaces:

RecordStore, WritableRecordStore

public class ArrayRecordStore
extends Object
implements WritableRecordStore

A class to answer representation queries using the stored Array.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	ArrayRecordStore.StorageAccessor<T> Access a single record in the given data.

Field Summary

Fields

Modifier and Type	Field and Description
private Object[][]	data Data array
private DataStoreIDMap	idmap DBID to index map

Constructor Summary

Constructors

Constructor and Description
ArrayRecordStore(Object[][] data, DataStoreIDMap idmap) Constructor with existing data

Method Summary

Methods

Modifier and Type	Method and Description
protected <T> T	get(DBIDRef id, int index) Actual getter
<T> WritableDataStore<T>	getStorage(int col, Class<? super T> datatype) Get a WritableDataStore instance for a particular record column.
boolean	remove(DBIDRef id) Remove an object from the store, all columns.
protected <T> T	set(DBIDRef id, int index, T value) Actual setter

Methods inherited from class java.lang.Object

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

Field Detail

data

private final Object[][] data

Data array

idmap

private final DataStoreIDMap idmap

DBID to index map

Constructor Detail

ArrayRecordStore

public ArrayRecordStore(Object[][] data,
                DataStoreIDMap idmap)

Constructor with existing data

Parameters:

data - Existing data

idmap - Map for array offsets

Method Detail

getStorage

public <T> WritableDataStore<T> getStorage(int col,
                                  Class<? super T> datatype)

Description copied from interface: WritableRecordStore

Get a WritableDataStore instance for a particular record column.

Specified by:

getStorage in interface RecordStore

Specified by:

getStorage in interface WritableRecordStore

Type Parameters:

T - Data type

Parameters:

col - Column number

datatype - data class

Returns:

writable storage

get

protected <T> T get(DBIDRef id,
        int index)

Actual getter

Parameters:

id - Database ID

index - column index

Returns:

current value

set

protected <T> T set(DBIDRef id,
        int index,
        T value)

Actual setter

Parameters:

id - Database ID

index - column index

value - New value

Returns:

old value

remove

public boolean remove(DBIDRef id)

Description copied from interface: WritableRecordStore

Remove an object from the store, all columns.

Specified by:

remove in interface WritableRecordStore

Parameters:

id - object ID to remove

Returns:

success code