Package org.neotropic.kuwaiba.core.persistence.reference.neo4j.util

Class ObjectGraphMappingService

java.lang.Object

org.neotropic.kuwaiba.core.persistence.reference.neo4j.util.ObjectGraphMappingService

@Service
public class ObjectGraphMappingService
extends Object

Provides methods to map nodes into Java objects, mostly BusinessObject and BusinessObjectLight instances.

Author:

Johny Andres Ortega Ruiz <johny.ortega@kuwaiba.org>

Constructor Summary

Constructors

Constructor	Description
ObjectGraphMappingService()

Method Summary

Modifier and Type	Method	Description
BusinessObject	createObjectFromNode(org.neo4j.graphdb.Node instance)
BusinessObject	createObjectFromNode(org.neo4j.graphdb.Node instance, ClassMetadata classMetadata)	Builds a RemoteBusinessObject instance from a node representing a business object
BusinessObjectLight	createObjectLightFromNode(org.neo4j.graphdb.Node instance)
boolean	isObjectAttributeUnique(String className, String attributeName, Object attributeValue)	Check if the value of the given attribute name is unique across other objects in the class and its subclasses
ChangeDescriptor	updateObject(String id, ClassMetadata classMetadata, HashMap<String,String> attributes)

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectGraphMappingService

public ObjectGraphMappingService()

Method Detail

createObjectLightFromNode

public BusinessObjectLight createObjectLightFromNode(org.neo4j.graphdb.Node instance)

updateObject

public ChangeDescriptor updateObject(String id,
                                     ClassMetadata classMetadata,
                                     HashMap<String,String> attributes)
                              throws InvalidArgumentException,
                                     MetadataObjectNotFoundException

Throws:

InvalidArgumentException

MetadataObjectNotFoundException

createObjectFromNode

public BusinessObject createObjectFromNode(org.neo4j.graphdb.Node instance)
                                    throws InvalidArgumentException

Throws:

InvalidArgumentException

createObjectFromNode

public BusinessObject createObjectFromNode(org.neo4j.graphdb.Node instance,
                                           ClassMetadata classMetadata)
                                    throws InvalidArgumentException

Builds a RemoteBusinessObject instance from a node representing a business object

Parameters:

instance - The object as a Node instance.

classMetadata - The class metadata to map the node's properties into a RemoteBussinessObject.

Returns:

The business object.

Throws:

InvalidArgumentException - If an attribute value can't be mapped into value.

isObjectAttributeUnique

public boolean isObjectAttributeUnique(String className,
                                       String attributeName,
                                       Object attributeValue)

Check if the value of the given attribute name is unique across other objects in the class and its subclasses

Parameters:

className - the class name

attributeName - attribute name

attributeValue - attribute value

Returns:

true if the attribute value is unique