com.googlecode.objectify.impl

Class WriteEngine

java.lang.Object

com.googlecode.objectify.impl.WriteEngine

public class WriteEngine
extends Object

This is the master logic for saving and deleting entities from the datastore. It provides the fundamental operations that enable the rest of the API. One of these engines is created for every operation; upon completion, it is thrown away.

Author:

Jeff Schnitzer

Field Summary

Fields

Modifier and Type	Field and Description
protected com.google.appengine.api.datastore.AsyncDatastoreService	ads
protected ObjectifyImpl<?>	ofy
protected Session	session

Constructor Summary

Constructors

Constructor and Description
WriteEngine(ObjectifyImpl<?> ofy, com.google.appengine.api.datastore.AsyncDatastoreService ads, Session session)

Method Summary

Modifier and Type	Method and Description
Result<Void>	delete(Iterable<com.google.appengine.api.datastore.Key> keys) The fundamental delete() operation.
<E> Result<Map<Key<E>,E>>	save(Iterable<? extends E> entities) The fundamental put() operation.

Methods inherited from class java.lang.Object

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

Field Detail

ofy

protected ObjectifyImpl<?> ofy

ads

protected com.google.appengine.api.datastore.AsyncDatastoreService ads

session

protected Session session

Constructor Detail

WriteEngine

public WriteEngine(ObjectifyImpl<?> ofy,
                   com.google.appengine.api.datastore.AsyncDatastoreService ads,
                   Session session)

Method Detail

save

public <E> Result<Map<Key<E>,E>> save(Iterable<? extends E> entities)

The fundamental put() operation.

delete

public Result<Void> delete(Iterable<com.google.appengine.api.datastore.Key> keys)

The fundamental delete() operation.