com.hammurapi.store

Interface Store.Handle<T,PK,S extends Store<T,PK,S>>

Type Parameters:

T -

All Known Implementing Classes:

LocalHandle

Enclosing interface:

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

public static interface Store.Handle<T,PK,S extends Store<T,PK,S>>

Object handle.

Method Summary

Methods

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

Method Detail

update

void update(T obj)

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.

Parameters:

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

update

void update()

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

remove

void remove()

Removes object referenced by this handle.

get

T get()

Returns:

Object referenced by this handle.

getPrimaryKey

PK getPrimaryKey()

Returns:

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

isValid

boolean isValid()

Returns:

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

extract

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

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

Type Parameters:

V - Value type

Parameters:

extractor - Extractor

Returns:

extracted value.