com.thinkaurelius.titan.diskstorage.keycolumnvalue.keyvalue

Interface OrderedKeyValueStore

All Superinterfaces:

KeyValueStore

public interface OrderedKeyValueStore
extends KeyValueStore

A KeyValueStore where the keys are ordered such that keys can be retrieved in order.

Author:

Matthias Bröcheler (me@matthiasb.com);

Method Summary

Methods

Modifier and Type	Method and Description
RecordIterator<KeyValueEntry>	getSlice(StaticBuffer keyStart, StaticBuffer keyEnd, KeySelector selector, StoreTransaction txh) Returns a list of all Key-value pairs (KeyValueEntry where the key lies between keyStart (inclusive) and keyEnd (exclusive) and such that they match the specified KeySelector.
void	insert(StaticBuffer key, StaticBuffer value, StoreTransaction txh) Inserts the given key-value pair into the store.

Methods inherited from interface com.thinkaurelius.titan.diskstorage.keycolumnvalue.keyvalue.KeyValueStore

acquireLock, close, containsKey, delete, get, getName

Method Detail

insert

void insert(StaticBuffer key,
          StaticBuffer value,
          StoreTransaction txh)
            throws StorageException

Inserts the given key-value pair into the store. If the key already exists, its value is overwritten by the given one.

Parameters:

key -

value -

txh -

Throws:

StorageException

getSlice

RecordIterator<KeyValueEntry> getSlice(StaticBuffer keyStart,
                                     StaticBuffer keyEnd,
                                     KeySelector selector,
                                     StoreTransaction txh)
                                       throws StorageException

Returns a list of all Key-value pairs (KeyValueEntry where the key lies between keyStart (inclusive) and keyEnd (exclusive) and such that they match the specified KeySelector. If the KeySelector reaches its limit before the specified range is exhausted, only the matching entries up to that point are returned. The operation is executed inside the context of the given transaction.

Parameters:

keyStart -

keyEnd -

selector -

txh -

Returns:

Throws:

StorageException