com.thinkaurelius.titan.diskstorage.keycolumnvalue.cache

Class NoKCVSCache

java.lang.Object

com.thinkaurelius.titan.diskstorage.keycolumnvalue.cache.KCVSCache

com.thinkaurelius.titan.diskstorage.keycolumnvalue.cache.NoKCVSCache

All Implemented Interfaces:

KeyColumnValueStore

public class NoKCVSCache
extends KCVSCache

Author:

Matthias Broecheler (me@matthiasb.com)

Field Summary

Fields inherited from class com.thinkaurelius.titan.diskstorage.keycolumnvalue.cache.KCVSCache

NO_DELETIONS, store

Fields inherited from interface com.thinkaurelius.titan.diskstorage.keycolumnvalue.KeyColumnValueStore

NO_ADDITIONS

Constructor Summary

Constructors

Constructor and Description
NoKCVSCache(KeyColumnValueStore store)

Method Summary

Methods

Modifier and Type	Method and Description
void	clearCache()
EntryList	getSlice(KeySliceQuery query, StoreTransaction txh) Retrieves the list of entries (i.e.
Map<StaticBuffer,EntryList>	getSlice(List<StaticBuffer> keys, SliceQuery query, StoreTransaction txh) Retrieves the list of entries (i.e.
protected void	invalidate(StaticBuffer key, List<CachableStaticBuffer> entries)

Methods inherited from class com.thinkaurelius.titan.diskstorage.keycolumnvalue.cache.KCVSCache

acquireLock, close, getKeys, getKeys, getName, getTx, hasValidateKeysOnly, incActionBy, mutate, mutateEntries

Methods inherited from class java.lang.Object

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

Constructor Detail

NoKCVSCache

public NoKCVSCache(KeyColumnValueStore store)

Method Detail

clearCache

public void clearCache()

Specified by:

clearCache in class KCVSCache

invalidate

protected void invalidate(StaticBuffer key,
              List<CachableStaticBuffer> entries)

Specified by:

invalidate in class KCVSCache

getSlice

public EntryList getSlice(KeySliceQuery query,
                 StoreTransaction txh)
                   throws StorageException

Description copied from interface: KeyColumnValueStore

Retrieves the list of entries (i.e. column-value pairs) for a specified query.

Parameters:

query - Query to get results for

txh - Transaction

Returns:

List of entries up to a maximum of "limit" entries

Throws:

StorageException - when columnEnd < columnStart

See Also:

KeySliceQuery

getSlice

public Map<StaticBuffer,EntryList> getSlice(List<StaticBuffer> keys,
                                   SliceQuery query,
                                   StoreTransaction txh)
                                     throws StorageException

Description copied from interface: KeyColumnValueStore

Retrieves the list of entries (i.e. column-value pairs) as specified by the given SliceQuery for all of the given keys together.

Parameters:

keys - List of keys

query - Slicequery specifying matching entries

txh - Transaction

Returns:

The result of the query for each of the given keys as a map from the key to the list of result entries.

Throws:

StorageException