com.hammurapi.store.local

Class LocalHandle<T,PK,S extends Store<T,PK,S>>

java.lang.Object

com.hammurapi.store.local.LocalHandle<T,PK,S>

All Implemented Interfaces:

Store.Handle<T,PK,S>

public class LocalHandle<T,PK,S extends Store<T,PK,S>>
extends Object
implements Store.Handle<T,PK,S>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LocalHandle.HandleStrength

Constructor Summary

Constructors

Constructor and Description
LocalHandle(LocalStoreBase<T,PK,S> store, T obj, PK primaryKey, Map<S,Map<Extractor<T,? super PK,S>,? super PK>> cache, Predicate<T,S>[] validators, LocalHandle.HandleStrength handleStrength, boolean cacheExtracted)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object obj)
<V> V	extract(Extractor<T,V,S> extractor) Extracts value from handle's object using given extractor and internal handle's cache.
T	get()
protected Map<S,Map<Extractor<T,? super PK,S>,? super PK>>	getCache()
PK	getPrimaryKey()
int	hashCode()
boolean	isValid()
void	remove() Removes object referenced by this handle.
String	toString()
void	update() Clears cache and updates indexes.
void	update(T obj) Updates object referenced by this handle.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LocalHandle

public LocalHandle(LocalStoreBase<T,PK,S> store,
           T obj,
           PK primaryKey,
           Map<S,Map<Extractor<T,? super PK,S>,? super PK>> cache,
           Predicate<T,S>[] validators,
           LocalHandle.HandleStrength handleStrength,
           boolean cacheExtracted)

Method Detail

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

update

public void update(T obj)

Description copied from interface: Store.Handle

Updates object referenced by this handle. Clears cache and updates indexes. The new object shall have the same primary key if the store has primary key extractor.

Specified by:

update in interface Store.Handle<T,PK,S extends Store<T,PK,S>>

Parameters:

obj - New object for the handle (for immutable objects).

update

public void update()

Description copied from interface: Store.Handle

Clears cache and updates indexes. Updated object shall have the same primary key if the store has primary key extractor.

Specified by:

update in interface Store.Handle<T,PK,S extends Store<T,PK,S>>

remove

public void remove()

Description copied from interface: Store.Handle

Removes object referenced by this handle.

Specified by:

remove in interface Store.Handle<T,PK,S extends Store<T,PK,S>>

getCache

protected Map<S,Map<Extractor<T,? super PK,S>,? super PK>> getCache()

get

public T get()

Specified by:

get in interface Store.Handle<T,PK,S extends Store<T,PK,S>>

Returns:

Object referenced by this handle.

getPrimaryKey

public PK getPrimaryKey()

Specified by:

getPrimaryKey in interface Store.Handle<T,PK,S extends Store<T,PK,S>>

Returns:

Primary key if object store is configured with primary key extractor.

isValid

public boolean isValid()

Specified by:

isValid in interface Store.Handle<T,PK,S extends Store<T,PK,S>>

Returns:

True if object referenced by this handle is present in the store.

extract

public <V> V extract(Extractor<T,V,S> extractor)

Description copied from interface: Store.Handle

Extracts value from handle's object using given extractor and internal handle's cache.

Specified by:

extract in interface Store.Handle<T,PK,S extends Store<T,PK,S>>

Type Parameters:

V - Value type

Parameters:

extractor - Extractor

Returns:

extracted value.

toString

public String toString()

Overrides:

toString in class Object