Package com.googlecode.objectify.impl

Class KeyPopulator<P>

java.lang.Object

com.googlecode.objectify.impl.KeyPopulator<P>

All Implemented Interfaces:

Populator<P>

public class KeyPopulator<P>
extends Object
implements Populator<P>

Populates the @Id/@Parent fields from an Entity key

Constructor Summary

Constructors

Constructor	Description
KeyPopulator(Class<P> clazz, CreateContext ctx, Path path)

Method Summary

Modifier and Type	Method	Description
void	load(com.google.cloud.datastore.FullEntity<?> container, LoadContext ctx, Path containerPath, P intoPojo)	Loads the content of the specified datastore node into an existing POJO.
void	save(P onPojo, boolean index, SaveContext ctx, Path containerPath, com.google.cloud.datastore.FullEntity.Builder<?> into)	Saves data from the POJO into the entity builder.

Methods inherited from class java.lang.Object

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

Constructor Details

KeyPopulator

public KeyPopulator(Class<P> clazz,
 CreateContext ctx,
 Path path)

Method Details

load

public void load(com.google.cloud.datastore.FullEntity<?> container,
 LoadContext ctx,
 Path containerPath,
 P intoPojo)

Description copied from interface: Populator

Loads the content of the specified datastore node into an existing POJO.

Specified by:

load in interface Populator<P>

Parameters:

container - is the part of the native datastore entity tree we are transforming.

ctx - holds state information during an entity load.

containerPath - is the current path to this POJO

save

public void save(P onPojo,
 boolean index,
 SaveContext ctx,
 Path containerPath,
 com.google.cloud.datastore.FullEntity.Builder<?> into)

Description copied from interface: Populator

Saves data from the POJO into the entity builder.

Specified by:

save in interface Populator<P>

Parameters:

onPojo - is an object from the pojo entity graph; possibly the whole graph or possibly just a leaf field.

index - is whether the instruction so far is to index or not index property values

containerPath - is the path that we have taken to get here, which could be long due to re-entrant translators (ie, an embedded pojo that also has a reference to the same class).