Package io.jmix.core.impl.metadata

Class MetadataSessionCloneSupport

java.lang.Object

io.jmix.core.impl.metadata.MetadataSessionCloneSupport

@Component("core_MetadataSessionCloneSupport")
public class MetadataSessionCloneSupport
extends Object

Creates detached clones of the metadata session graph for generation-based publication.

Intended for code that needs to prepare a new metadata generation without mutating the currently published Session, MetaClass, and MetaProperty objects.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MetadataSessionCloneSupport.SessionCloneResult	Result of cloning a metadata session together with the mappings needed to continue updating the cloned graph.

Field Summary

Fields

Modifier and Type	Field	Description
protected List<MetadataSessionCloneMetaPropertyHandler>	metaPropertyHandlers

Constructor Summary

Constructors

Constructor	Description
MetadataSessionCloneSupport()

Method Summary

Modifier and Type	Method	Description
protected MetaClass	cloneMetaClassSkeleton(Session targetSession, MetaClass sourceMetaClass)
protected MetaProperty	cloneMetaPropertySkeleton(MetaProperty sourceMetaProperty, IdentityHashMap<MetaClass,MetaClass> metaClassMap)
protected Range	cloneRange(Range sourceRange, IdentityHashMap<MetaClass,MetaClass> metaClassMap)
MetadataSessionCloneSupport.SessionCloneResult	cloneSession(MetadataGeneration generation)	Clones metadata session state of the specified generation into a detached snapshot that can be safely mutated.
MetadataSessionCloneSupport.SessionCloneResult	cloneSession(Session sourceSession, ExtendedEntities.ExtendedEntitiesState extendedEntitiesState)	Clones the given metadata session together with its extended-entities state.
protected void	copyMetaPropertyState(MetaProperty sourceMetaProperty, MetaProperty targetMetaProperty, IdentityHashMap<MetaClass,MetaClass> metaClassMap, IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)
protected MetadataSessionCloneMetaPropertyHandler	findMetaPropertyHandler(MetaProperty sourceMetaProperty)
protected List<MetaClass>	mapMetaClasses(Collection<MetaClass> sourceMetaClasses, IdentityHashMap<MetaClass,MetaClass> metaClassMap)
protected <K> Map<K,MetaClass>	mapMetaClassMap(Map<K,MetaClass> source, IdentityHashMap<MetaClass,MetaClass> metaClassMap)
protected MetaProperty	mapMetaProperty(MetaProperty sourceMetaProperty, IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)
protected List<MetaProperty>	mapProperties(Collection<MetaProperty> sourceProperties, IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)
protected Map<String,Object>	remapAnnotations(Map<String,Object> sourceAnnotations, IdentityHashMap<MetaClass,MetaClass> metaClassMap, IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)
protected Object	remapAnnotationValue(Object value, IdentityHashMap<MetaClass,MetaClass> metaClassMap, IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)

Methods inherited from class java.lang.Object

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

Field Details

metaPropertyHandlers

@Autowired(required=false)
protected List<MetadataSessionCloneMetaPropertyHandler> metaPropertyHandlers

Constructor Details

MetadataSessionCloneSupport

public MetadataSessionCloneSupport()

Method Details

cloneSession

public MetadataSessionCloneSupport.SessionCloneResult cloneSession(MetadataGeneration generation)

Clones metadata session state of the specified generation into a detached snapshot that can be safely mutated.

Parameters:

generation - source generation

Returns:

cloned session data and remapped metadata objects

cloneSession

public MetadataSessionCloneSupport.SessionCloneResult cloneSession(Session sourceSession,
 ExtendedEntities.ExtendedEntitiesState extendedEntitiesState)

Clones the given metadata session together with its extended-entities state.

Parameters:

sourceSession - source session to copy

extendedEntitiesState - extended-entities state aligned with the source session

Returns:

cloned session data and remapped metadata objects

cloneMetaClassSkeleton

protected MetaClass cloneMetaClassSkeleton(Session targetSession,
 MetaClass sourceMetaClass)

cloneMetaPropertySkeleton

protected MetaProperty cloneMetaPropertySkeleton(MetaProperty sourceMetaProperty,
 IdentityHashMap<MetaClass,MetaClass> metaClassMap)

copyMetaPropertyState

protected void copyMetaPropertyState(MetaProperty sourceMetaProperty,
 MetaProperty targetMetaProperty,
 IdentityHashMap<MetaClass,MetaClass> metaClassMap,
 IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)

cloneRange

protected Range cloneRange(Range sourceRange,
 IdentityHashMap<MetaClass,MetaClass> metaClassMap)

mapProperties

protected List<MetaProperty> mapProperties(Collection<MetaProperty> sourceProperties,
 IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)

mapMetaClasses

protected List<MetaClass> mapMetaClasses(Collection<MetaClass> sourceMetaClasses,
 IdentityHashMap<MetaClass,MetaClass> metaClassMap)

mapMetaClassMap

protected <K> Map<K,MetaClass> mapMetaClassMap(Map<K,MetaClass> source,
 IdentityHashMap<MetaClass,MetaClass> metaClassMap)

remapAnnotations

protected Map<String,Object> remapAnnotations(Map<String,Object> sourceAnnotations,
 IdentityHashMap<MetaClass,MetaClass> metaClassMap,
 IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)

remapAnnotationValue

protected Object remapAnnotationValue(Object value,
 IdentityHashMap<MetaClass,MetaClass> metaClassMap,
 IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)

mapMetaProperty

protected MetaProperty mapMetaProperty(MetaProperty sourceMetaProperty,
 IdentityHashMap<MetaProperty,MetaProperty> metaPropertyMap)

findMetaPropertyHandler

protected MetadataSessionCloneMetaPropertyHandler findMetaPropertyHandler(MetaProperty sourceMetaProperty)