systems.dmx.core.impl

Class ValueIntegrator

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java.lang.Object

systems.dmx.core.impl.ValueIntegrator

class ValueIntegrator
extends Object

Integrates new values into the DB. Note: this class is not thread-safe. A ValueIntegrator instance must not be shared between threads.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) class	ValueIntegrator.UnifiedValue<M extends DMXObjectModelImpl>

Field Summary

Fields

Modifier and Type	Field and Description
private AssociationDefinitionModel	assocDef
private List<String>	emptyValues
private boolean	isAssoc
private boolean	isFacetUpdate
private boolean	isType
private Logger	logger
private ModelFactoryImpl	mf
private DMXObjectModelImpl	newValues
private PersistenceLayer	pl
private DMXObjectModelImpl	targetObject
private TypeModelImpl	type

Constructor Summary

Constructors

Constructor and Description
ValueIntegrator(PersistenceLayer pl)

Method Summary

Modifier and Type	Method and Description
private AssociationDefinitionModel	assocDef(String assocDefUri)
private Iterable<String>	assocDefUris()
private AssociationModelImpl	createChildAssociation(DMXObjectModel parent, DMXObjectModel child, String assocDefUri)
private AssociationModelImpl	createChildAssociation(DMXObjectModel parent, DMXObjectModel child, String assocDefUri, boolean deleted)
private TopicModelImpl	createCompositeTopic(Map<String,Object> childTopics)
private TopicModelImpl	createSimpleTopic() Preconditions: - this.newValues is a topic model.
private void	eliminateParentCandidates(List<RelatedTopicModelImpl> candidates, DMXObjectModel childTopic, String assocDefUri)
private RelatedTopicModelImpl	findTopic(List<RelatedTopicModelImpl> topics, long topicId)
private DMXObjectModelImpl	identifyParent(Map<String,Object> childTopics)
private Map<String,Object>	identityChildTopics(Map<String,Object> childTopics, List<String> identityAssocDefUris)
private void	idTransfer(DMXObjectModelImpl value)
(package private) <M extends DMXObjectModelImpl> ValueIntegrator.UnifiedValue<M>	integrate(M newValues, M targetObject, AssociationDefinitionModel assocDef) Integrates new values into the DB and returns the unified value.
private Object	integrateChildValue(Object childValue, String assocDefUri) Integrates a child value into the DB and returns the unified value.
private DMXObjectModelImpl	integrateComposite() Integrates a composite value into the DB and returns the unified composite value.
private DMXObjectModelImpl	integrateSimple() Integrates a simple value into the DB and returns the unified simple value.
private boolean	isEmptyValue(String assocDefUri)
private boolean	isOne(String assocDefUri)
private boolean	isValueType()
private List<RelatedTopicModelImpl>	parentCandidates(Map<String,Object> childTopics) Preconditions: - this.newValues is composite - assocDef's parent type is this.type - childTopic's type is assocDef's child type - childTopics map is not empty
private void	removeTopic(List<RelatedTopicModelImpl> topics, long topicId)
private DMXObjectModelImpl	storeAssocSimpleValue() Preconditions: - this.newValues is an assoc model.
private DMXObjectModelImpl	unifyChildTopics(Map<String,Object> childTopics, Iterable<String> assocDefUris) Preconditions: - this.newValues is composite - assocDef's parent type is this.type - childTopic's type is assocDef's child type - childTopics map is not empty
private DMXObjectModelImpl	unifyComposite(Map<String,Object> childTopics) Preconditions: - this.newValues is composite - assocDef's parent type is this.type - childTopic's type is assocDef's child type
private ValueIntegrator.UnifiedValue	unifyRef()
private TopicModelImpl	unifySimple() Preconditions: - this.newValues is simple - this.newValues is not empty
private DMXObjectModelImpl	updateAssignments(DMXObjectModelImpl parent, Map<String,Object> unifiedChilds) Updates a parent's child assignments in-place.
private void	updateAssignmentsMany(DMXObjectModelImpl parent, List<ValueIntegrator.UnifiedValue> unifiedChilds, String assocDefUri)
private void	updateAssignmentsOne(DMXObjectModelImpl parent, TopicModel unifiedChild, String assocDefUri)
private void	updateRelatingAssociation(AssociationModelImpl assoc, String assocDefUri, RelatedTopicModelImpl newValues)

Methods inherited from class java.lang.Object

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

Field Detail

newValues

private DMXObjectModelImpl newValues

targetObject

private DMXObjectModelImpl targetObject

assocDef

private AssociationDefinitionModel assocDef

type

private TypeModelImpl type

isAssoc

private boolean isAssoc

isType

private boolean isType

isFacetUpdate

private boolean isFacetUpdate

emptyValues

private List<String> emptyValues

pl

private PersistenceLayer pl

mf

private ModelFactoryImpl mf

logger

private Logger logger

Constructor Detail

ValueIntegrator

ValueIntegrator(PersistenceLayer pl)

Method Detail

integrate

<M extends DMXObjectModelImpl> ValueIntegrator.UnifiedValue<M> integrate(M newValues,
                                                                         M targetObject,
                                                                         AssociationDefinitionModel assocDef)

Integrates new values into the DB and returns the unified value.

Returns:

the unified value; never null; its "value" field is null if there was nothing to integrate.

unifyRef

private ValueIntegrator.UnifiedValue unifyRef()

idTransfer

private void idTransfer(DMXObjectModelImpl value)

integrateSimple

private DMXObjectModelImpl integrateSimple()

Integrates a simple value into the DB and returns the unified simple value. Preconditions: - this.newValues is not null - this.newValues is simple

Returns:

the unified value, or null if there was nothing to integrate. The latter is the case if this.newValues is the empty string.

storeAssocSimpleValue

private DMXObjectModelImpl storeAssocSimpleValue()

Preconditions: - this.newValues is an assoc model.

unifySimple

private TopicModelImpl unifySimple()

Preconditions: - this.newValues is simple - this.newValues is not empty

Returns:

the unified value. Is never null.

integrateComposite

private DMXObjectModelImpl integrateComposite()

Integrates a composite value into the DB and returns the unified composite value. Preconditions: - this.newValues is composite

Returns:

the unified value, or null if there was nothing to integrate.

assocDefUris

private Iterable<String> assocDefUris()

integrateChildValue

private Object integrateChildValue(Object childValue,
                                   String assocDefUri)

Integrates a child value into the DB and returns the unified value.

Parameters:

childValue - RelatedTopicModelImpl or List

Returns:

UnifiedValue or List; never null;

unifyComposite

private DMXObjectModelImpl unifyComposite(Map<String,Object> childTopics)

Preconditions: - this.newValues is composite - assocDef's parent type is this.type - childTopic's type is assocDef's child type

Parameters:

childTopics - value: UnifiedValue or List

identifyParent

private DMXObjectModelImpl identifyParent(Map<String,Object> childTopics)

Parameters:

childTopics - value: UnifiedValue or List

identityChildTopics

private Map<String,Object> identityChildTopics(Map<String,Object> childTopics,
                                               List<String> identityAssocDefUris)

Parameters:

childTopics - value: UnifiedValue or List

Returns:

value: UnifiedValue or List

updateAssignments

private DMXObjectModelImpl updateAssignments(DMXObjectModelImpl parent,
                                             Map<String,Object> unifiedChilds)

Updates a parent's child assignments in-place. Preconditions: - this.newValues is composite - this.type is an identity type - parent's type is this.type - assocDef's parent type is this.type - newChildTopic's type is assocDef's child type

Parameters:

unifiedChilds - value: UnifiedValue or List

updateAssignmentsOne

private void updateAssignmentsOne(DMXObjectModelImpl parent,
                                  TopicModel unifiedChild,
                                  String assocDefUri)

Parameters:

unifiedChild - may be null

updateAssignmentsMany

private void updateAssignmentsMany(DMXObjectModelImpl parent,
                                   List<ValueIntegrator.UnifiedValue> unifiedChilds,
                                   String assocDefUri)

Parameters:

unifiedChilds - never null; a UnifiedValue's "value" field may be null

updateRelatingAssociation

private void updateRelatingAssociation(AssociationModelImpl assoc,
                                       String assocDefUri,
                                       RelatedTopicModelImpl newValues)

unifyChildTopics

private DMXObjectModelImpl unifyChildTopics(Map<String,Object> childTopics,
                                            Iterable<String> assocDefUris)

Preconditions: - this.newValues is composite - assocDef's parent type is this.type - childTopic's type is assocDef's child type - childTopics map is not empty

Parameters:

childTopics - value: UnifiedValue or List

parentCandidates

private List<RelatedTopicModelImpl> parentCandidates(Map<String,Object> childTopics)

Preconditions: - this.newValues is composite - assocDef's parent type is this.type - childTopic's type is assocDef's child type - childTopics map is not empty

Parameters:

childTopics - value: UnifiedValue or List

eliminateParentCandidates

private void eliminateParentCandidates(List<RelatedTopicModelImpl> candidates,
                                       DMXObjectModel childTopic,
                                       String assocDefUri)

Parameters:

childTopic - may be null

createSimpleTopic

private TopicModelImpl createSimpleTopic()

Preconditions: - this.newValues is a topic model.

createCompositeTopic

private TopicModelImpl createCompositeTopic(Map<String,Object> childTopics)

Parameters:

childTopics - value: UnifiedValue or List

createChildAssociation

private AssociationModelImpl createChildAssociation(DMXObjectModel parent,
                                                    DMXObjectModel child,
                                                    String assocDefUri)

createChildAssociation

private AssociationModelImpl createChildAssociation(DMXObjectModel parent,
                                                    DMXObjectModel child,
                                                    String assocDefUri,
                                                    boolean deleted)

findTopic

private RelatedTopicModelImpl findTopic(List<RelatedTopicModelImpl> topics,
                                        long topicId)

removeTopic

private void removeTopic(List<RelatedTopicModelImpl> topics,
                         long topicId)

assocDef

private AssociationDefinitionModel assocDef(String assocDefUri)

isOne

private boolean isOne(String assocDefUri)

isValueType

private boolean isValueType()

isEmptyValue

private boolean isEmptyValue(String assocDefUri)