voldemort.store.versioned
Class InconsistencyResolvingStore<K,V,T>

java.lang.Object
  voldemort.store.DelegatingStore<K,V,T>
      voldemort.store.versioned.InconsistencyResolvingStore<K,V,T>

All Implemented Interfaces:

Store<K,V,T>

public class InconsistencyResolvingStore<K,V,T>
extends DelegatingStore<K,V,T>

A Store that uses a InconsistencyResolver to eliminate some duplicates.

Constructor Summary

InconsistencyResolvingStore(Store<K,V,T> innerStore, InconsistencyResolver<Versioned<V>> resolver)

Method Summary

java.util.List<Versioned<V>>	get(K key, T transforms) Get the value associated with the given key
java.util.Map<K,java.util.List<Versioned<V>>>	getAll(java.lang.Iterable<K> keys, java.util.Map<K,T> transforms) Get the values associated with the given keys and returns them in a Map of keys to a list of versioned values.
java.lang.Object	getCapability(StoreCapabilityType capability) Get some capability of the store.

Methods inherited from class voldemort.store.DelegatingStore

close, delete, getInnerStore, getName, getVersions, put, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

InconsistencyResolvingStore

public InconsistencyResolvingStore(Store<K,V,T> innerStore,
                                   InconsistencyResolver<Versioned<V>> resolver)

Method Detail

get

public java.util.List<Versioned<V>> get(K key,
                                        T transforms)
                                 throws VoldemortException

Description copied from interface: Store

Get the value associated with the given key

Specified by:

get in interface Store<K,V,T>

Overrides:

get in class DelegatingStore<K,V,T>

Parameters:

key - The key to check for

Returns:

The value associated with the key or an empty list if no values are found.

Throws:

VoldemortException

getAll

public java.util.Map<K,java.util.List<Versioned<V>>> getAll(java.lang.Iterable<K> keys,
                                                            java.util.Map<K,T> transforms)
                                                     throws VoldemortException

Description copied from interface: Store

Get the values associated with the given keys and returns them in a Map of keys to a list of versioned values. Note that the returned map will only contain entries for the keys which have a value associated with them.

Specified by:

getAll in interface Store<K,V,T>

Overrides:

getAll in class DelegatingStore<K,V,T>

Parameters:

keys - The keys to check for.

Returns:

A Map of keys to a list of versioned values.

Throws:

VoldemortException

getCapability

public java.lang.Object getCapability(StoreCapabilityType capability)

Description copied from interface: Store

Get some capability of the store. Examples would be the serializer used, or the routing strategy. This provides a mechanism to verify that the store hierarchy has some set of capabilities without knowing the precise layering.

Specified by:

getCapability in interface Store<K,V,T>

Overrides:

getCapability in class DelegatingStore<K,V,T>

Parameters:

capability - The capability type to retrieve

Returns:

The given capaiblity