org.springframework.data.neo4j.core.mapping

Class NestedRelationshipProcessingStateMachine

java.lang.Object

org.springframework.data.neo4j.core.mapping.NestedRelationshipProcessingStateMachine

@API(status=INTERNAL,
     since="6.0")
public final class NestedRelationshipProcessingStateMachine
extends Object

This stores all processed nested relations and objects during save of objects so that the recursive descent can be stopped accordingly.

Author:

Michael J. Simons

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NestedRelationshipProcessingStateMachine.ProcessState Valid processing states.

Constructor Summary

Constructors

Constructor and Description
NestedRelationshipProcessingStateMachine(Neo4jMappingContext mappingContext)
NestedRelationshipProcessingStateMachine(Neo4jMappingContext mappingContext, Object initialObject, Long internalId)

Method Summary

Modifier and Type	Method and Description
Long	getInternalId(Object object)
Object	getProcessedAs(Object entity)
NestedRelationshipProcessingStateMachine.ProcessState	getStateOf(Object fromId, RelationshipDescription relationshipDescription, Collection<?> valuesToStore)
boolean	hasProcessedRelationship(Object fromId, RelationshipDescription relationshipDescription) Checks if the relationship has already been processed.
boolean	hasProcessedValue(Object value) Checks if the value has already been processed.
void	markRelationshipAsProcessed(Object fromId, RelationshipDescription relationshipDescription) Marks the passed objects as processed
void	markValueAsProcessed(Object valueToStore, Long internalId) Marks the passed objects as processed
void	markValueAsProcessedAs(Object valueToStore, Object bean)

Methods inherited from class java.lang.Object

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

Constructor Detail

NestedRelationshipProcessingStateMachine

public NestedRelationshipProcessingStateMachine(Neo4jMappingContext mappingContext)

NestedRelationshipProcessingStateMachine

public NestedRelationshipProcessingStateMachine(Neo4jMappingContext mappingContext,
                                                Object initialObject,
                                                Long internalId)

Method Detail

getStateOf

public NestedRelationshipProcessingStateMachine.ProcessState getStateOf(Object fromId,
                                                                        RelationshipDescription relationshipDescription,
                                                                        @Nullable
                                                                        Collection<?> valuesToStore)

Parameters:

relationshipDescription - Check whether this relationship description has been processed

valuesToStore - Check whether all the values in the collection have been processed

Returns:

The state of things processed

markRelationshipAsProcessed

public void markRelationshipAsProcessed(Object fromId,
                                        @Nullable
                                        RelationshipDescription relationshipDescription)

Marks the passed objects as processed

Parameters:

relationshipDescription - To be marked as processed

markValueAsProcessed

public void markValueAsProcessed(Object valueToStore,
                                 @Nullable
                                 Long internalId)

Marks the passed objects as processed

Parameters:

valueToStore - If not null, all non-null values will be marked as processed

internalId - The internal id of the value processed

hasProcessedValue

public boolean hasProcessedValue(Object value)

Checks if the value has already been processed.

Parameters:

value - the object that should be looked for in the registry.

Returns:

processed yes (true) / no (false)

hasProcessedRelationship

public boolean hasProcessedRelationship(Object fromId,
                                        @Nullable
                                        RelationshipDescription relationshipDescription)

Checks if the relationship has already been processed.

Parameters:

relationshipDescription - the relationship that should be looked for in the registry.

Returns:

processed yes (true) / no (false)

markValueAsProcessedAs

public void markValueAsProcessedAs(Object valueToStore,
                                   Object bean)

getInternalId

@Nullable
public Long getInternalId(Object object)

getProcessedAs

public Object getProcessedAs(Object entity)