org.gecko.emf.mongo.codecs

Class EObjectCollectibleCodec

java.lang.Object

org.gecko.emf.mongo.codecs.EObjectCollectibleCodec

public class EObjectCollectibleCodec
extends java.lang.Object

CollectibleCodec for EObject's

Since:

07.05.2016

Constructor Summary

Constructors

Constructor and Description
EObjectCollectibleCodec(DBObjectBuilder dbBuilder, EObjectBuilder eoBuilder, Resource resource)

Method Summary

Modifier and Type	Method and Description
protected EObject	createEObject(BsonReader reader, ResourceSet resourceSet, boolean readWithKey) This function creates an empty EObject by extracting the EClass type from the given DBObject using the ECLASS_KEY.
EObject	decode(BsonReader reader, DecoderContext decoderContext)
boolean	documentHasId(EObject document)
void	encode(BsonWriter writer, EObject value, EncoderContext encoderContext)
EObject	generateIdIfAbsentFromDocument(EObject document)
BsonValue	getDocumentId(EObject document)
protected EClass	getEClass(ResourceSet resourceSet, java.lang.String eClassURI) Finds the EClass for the given URI
java.lang.Class<EObject>	getEncoderClass()

Methods inherited from class java.lang.Object

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

Constructor Detail

EObjectCollectibleCodec

public EObjectCollectibleCodec(DBObjectBuilder dbBuilder,
                               EObjectBuilder eoBuilder,
                               Resource resource)

Method Detail

encode

public void encode(BsonWriter writer,
                   EObject value,
                   EncoderContext encoderContext)

getEncoderClass

public java.lang.Class<EObject> getEncoderClass()

decode

public EObject decode(BsonReader reader,
                      DecoderContext decoderContext)

generateIdIfAbsentFromDocument

public EObject generateIdIfAbsentFromDocument(EObject document)

documentHasId

public boolean documentHasId(EObject document)

getDocumentId

public BsonValue getDocumentId(EObject document)

createEObject

protected EObject createEObject(BsonReader reader,
                                ResourceSet resourceSet,
                                boolean readWithKey)

This function creates an empty EObject by extracting the EClass type from the given DBObject using the ECLASS_KEY. This function also maintains a static cache of EClass URI to EClass for improved performance.

Parameters:

reader - the BsonReader to read from

resourceSet - the resourceSet that will be used to locate the EClass if it is not cached

Returns:

the newly created object of type as specified by the data read from MongoDB

getEClass

protected EClass getEClass(ResourceSet resourceSet,
                           java.lang.String eClassURI)

Finds the EClass for the given URI

Parameters:

resourceSet - the resource set used to locate the EClass if it was not found in the cache

eClassURI - the URI of the EClass

Returns:

the EClass instance for the given URI