Class ItemWrapperImpl<I extends Item,VW extends PrismValueWrapper>

java.lang.Object
com.evolveum.midpoint.gui.impl.prism.wrapper.ItemWrapperImpl<I,VW>
All Implemented Interfaces:
ItemWrapper<I,VW>, Definition, Freezable, ItemDefinition<I>, PrismContextSensitive, PrismItemAccessDefinition, Revivable, SmartVisitable<Definition>, Visitable<Definition>, DebugDumpable, Serializable, Cloneable
Direct Known Subclasses:
PrismContainerWrapperImpl, PrismPropertyWrapperImpl, PrismReferenceWrapperImpl

public abstract class ItemWrapperImpl<I extends Item,VW extends PrismValueWrapper> extends Object implements ItemWrapper<I,VW>, Serializable
Author:
katka
See Also:
  • Constructor Details

  • Method Details

    • getDelta

      public <D extends ItemDelta<? extends PrismValue, ? extends ItemDefinition>> Collection<D> getDelta() throws SchemaException
      Specified by:
      getDelta in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
      Throws:
      SchemaException
    • addValueToDelta

      protected <D extends ItemDelta<? extends PrismValue, ? extends ItemDefinition>> void addValueToDelta(VW value, D delta) throws SchemaException
      Throws:
      SchemaException
    • getDisplayName

      public String getDisplayName()
      Description copied from interface: Definition
      Returns display name. Specifies the printable name of the object class or attribute. It must contain a printable string. It may also contain a key to catalog file. Returns null if no display name is set. Corresponds to "displayName" XSD annotation.
      Specified by:
      getDisplayName in interface Definition
      Returns:
      display name string or catalog key
    • setDisplayName

      public void setDisplayName(String displayName)
    • getHelp

      public String getHelp()
      Description copied from interface: Definition
      Returns help string. Specifies the help text or a key to catalog file for a help text. The help text may be displayed in any suitable way by the GUI. It should explain the meaning of an attribute or object class. Returns null if no help string is set. Corresponds to "help" XSD annotation.
      Specified by:
      getHelp in interface Definition
      Returns:
      help string or catalog key
    • isExperimental

      public boolean isExperimental()
      Description copied from interface: Definition
      Experimental functionality is not stable and it may be changed in any future release without any warning. Use at your own risk.
      Specified by:
      isExperimental in interface Definition
    • getDeprecatedSince

      public String getDeprecatedSince()
      Specified by:
      getDeprecatedSince in interface Definition
    • isDeprecated

      public boolean isDeprecated()
      Specified by:
      isDeprecated in interface Definition
    • isRemoved

      public boolean isRemoved()
      Specified by:
      isRemoved in interface Definition
    • getRemovedSince

      public String getRemovedSince()
      Specified by:
      getRemovedSince in interface Definition
    • getStatus

      public ItemStatus getStatus()
      Specified by:
      getStatus in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • getItem

      public I getItem()
      Specified by:
      getItem in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • setColumn

      public void setColumn(boolean column)
      Specified by:
      setColumn in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isColumn

      public boolean isColumn()
      Specified by:
      isColumn in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • getParent

      public PrismContainerValueWrapper<?> getParent()
      Specified by:
      getParent in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isReadOnly

      public boolean isReadOnly()
      Specified by:
      isReadOnly in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • getPath

      public ItemPath getPath()
      Specified by:
      getPath in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • getFormComponentValidator

      public ExpressionType getFormComponentValidator()
      Specified by:
      getFormComponentValidator in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • debugDump

      public String debugDump(int indent)
      Specified by:
      debugDump in interface DebugDumpable
      Specified by:
      debugDump in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • findObjectStatus

      public ItemStatus findObjectStatus()
      Specified by:
      findObjectStatus in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • findObjectWrapper

      public <OW extends PrismObjectWrapper<O>, O extends ObjectType> OW findObjectWrapper()
      Specified by:
      findObjectWrapper in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • getValues

      public List<VW> getValues()
      Specified by:
      getValues in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • getValue

      public VW getValue() throws SchemaException
      Specified by:
      getValue in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
      Throws:
      SchemaException
    • checkRequired

      public boolean checkRequired()
      Specified by:
      checkRequired in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isShowEmpty

      public boolean isShowEmpty()
      Specified by:
      isShowEmpty in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • setShowEmpty

      public void setShowEmpty(boolean isShowEmpty, boolean recursive)
      Specified by:
      setShowEmpty in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isShowInVirtualContainer

      public boolean isShowInVirtualContainer()
      Specified by:
      isShowInVirtualContainer in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • setShowInVirtualContainer

      public void setShowInVirtualContainer(boolean showInVirtualContainer)
      Specified by:
      setShowInVirtualContainer in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • setVisibleOverwrite

      public void setVisibleOverwrite(UserInterfaceElementVisibilityType visibleOverwrite)
      Specified by:
      setVisibleOverwrite in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isEmpty

      public boolean isEmpty()
      Specified by:
      isEmpty in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • getItemName

      @NotNull public @NotNull ItemName getItemName()
      Description copied from interface: ItemDefinition
      Gets the "canonical" name of the item for the definition. Should be qualified, if at all possible.
      Specified by:
      getItemName in interface ItemDefinition<I extends Item>
    • getMinOccurs

      public int getMinOccurs()
      Description copied from interface: ItemDefinition
      Return the number of minimal value occurrences.
      Specified by:
      getMinOccurs in interface ItemDefinition<I extends Item>
    • getMaxOccurs

      public int getMaxOccurs()
      Description copied from interface: ItemDefinition
      Return the number of maximal value occurrences. Any negative number means "unbounded".
      Specified by:
      getMaxOccurs in interface ItemDefinition<I extends Item>
    • isOperational

      public boolean isOperational()
      Description copied from interface: ItemDefinition
      Marks operational item. Operational properties are auxiliary data (or meta-data) that are usually not modifiable by the end user. They are generated and maintained by the system. Operational items are also not usually displayed unless it is explicitly requested. The example of operational items are modification timestamps, create timestamps, user that made the last change, etc. They are also treated in a special way when comparing values. See ParameterizedEquivalenceStrategy.
      Specified by:
      isOperational in interface ItemDefinition<I extends Item>
    • isInherited

      public boolean isInherited()
      Description copied from interface: ItemDefinition
      Whether the item is inherited from a supertype.
      Specified by:
      isInherited in interface ItemDefinition<I extends Item>
    • isDynamic

      public boolean isDynamic()
      Description copied from interface: ItemDefinition
      Returns true if definition was created during the runtime based on a dynamic information such as xsi:type attributes in XML. This means that the definition needs to be stored alongside the data to have a successful serialization "roundtrip". The definition is not part of any schema and therefore cannot be determined. It may even be different for every instance of the associated item (element name).
      Specified by:
      isDynamic in interface ItemDefinition<I extends Item>
    • canRead

      public boolean canRead()
      Description copied from interface: PrismItemAccessDefinition
      Returns true if this item can be read (displayed). In case of containers this flag is, strictly speaking, not applicable. Container is an empty shell. What matters is access to individual sub-item. However, for containers this value has a "hint" meaning. It means that the container itself contains something that is readable. Which can be used as a hint by the presentation to display container label or block. This usually happens if the container contains at least one readable item. This does NOT mean that also all the container items can be displayed. The sub-item permissions are controlled by similar properties on the items. This property only applies to the container itself: the "shell" of the container.

      Note: It was considered to use a different meaning for this flag - a meaning that would allow canRead()=false containers to have readable items. However, this was found not to be very useful. Therefore the "something readable inside" meaning was confirmed instead.

      Specified by:
      canRead in interface PrismItemAccessDefinition
    • canModify

      public boolean canModify()
      Description copied from interface: PrismItemAccessDefinition
      Returns true if this item can be modified (updated). In case of containers this means that the container itself should be displayed in modification forms E.g. that the container label or block should be displayed. This usually happens if the container contains at least one modifiable item. This does NOT mean that also all the container items can be modified. The sub-item permissions are controlled by similar properties on the items. This property only applies to the container itself: the "shell" of the container.
      Specified by:
      canModify in interface PrismItemAccessDefinition
    • canAdd

      public boolean canAdd()
      Description copied from interface: PrismItemAccessDefinition
      Returns true if this item can be added: it can be part of an object that is created. In case of containers this means that the container itself should be displayed in creation forms E.g. that the container label or block should be displayed. This usually happens if the container contains at least one createable item. This does NOT mean that also all the container items can be created. The sub-item permissions are controlled by similar properties on the items. This property only applies to the container itself: the "shell" of the container.
      Specified by:
      canAdd in interface PrismItemAccessDefinition
    • getSubstitutionHead

      public QName getSubstitutionHead()
      Description copied from interface: ItemDefinition
      Returns the name of an element this one can be substituted for (e.g. c:user -> c:object, s:pipeline -> s:expression, etc). EXPERIMENTAL
      Specified by:
      getSubstitutionHead in interface ItemDefinition<I extends Item>
    • isHeterogeneousListItem

      public boolean isHeterogeneousListItem()
      Description copied from interface: ItemDefinition
      Can be used in heterogeneous lists as a list item. EXPERIMENTAL.
      Specified by:
      isHeterogeneousListItem in interface ItemDefinition<I extends Item>
    • getValueEnumerationRef

      public PrismReferenceValue getValueEnumerationRef()
      Description copied from interface: ItemDefinition
      Reference to an object that directly or indirectly represents possible values for this item. We do not define here what exactly the object has to be. It can be a lookup table, script that dynamically produces the values or anything similar. The object must produce the values of the correct type for this item otherwise an error occurs.
      Specified by:
      getValueEnumerationRef in interface ItemDefinition<I extends Item>
    • isValidFor

      public boolean isValidFor(@NotNull @NotNull QName elementQName, @NotNull @NotNull Class<? extends ItemDefinition<?>> clazz, boolean caseInsensitive)
      Description copied from interface: ItemDefinition
      Returns true if this definition is valid for given element name and definition class, in either case-sensitive (the default) or case-insensitive way. Used e.g. for "slow" path lookup where we iterate over all definitions in a complex type.
      Specified by:
      isValidFor in interface ItemDefinition<I extends Item>
    • adoptElementDefinitionFrom

      public void adoptElementDefinitionFrom(ItemDefinition otherDef)
      Description copied from interface: ItemDefinition
      Transfers selected parts of the definition (currently item name, min/max occurs) from another definition. TODO used only on few places, consider removing
      Specified by:
      adoptElementDefinitionFrom in interface ItemDefinition<I extends Item>
    • instantiate

      @NotNull public I instantiate() throws SchemaException
      Description copied from interface: ItemDefinition
      Create an item instance. Definition name or default name will be used as an element name for the instance. The instance will otherwise be empty.
      Specified by:
      instantiate in interface ItemDefinition<I extends Item>
      Throws:
      SchemaException
    • instantiate

      @NotNull public I instantiate(QName name) throws SchemaException
      Description copied from interface: ItemDefinition
      Create an item instance. Definition name will use provided name. for the instance. The instance will otherwise be empty.
      Specified by:
      instantiate in interface ItemDefinition<I extends Item>
      Throws:
      SchemaException
    • findItemDefinition

      public <T extends ItemDefinition<?>> T findItemDefinition(@NotNull @NotNull ItemPath path, @NotNull @NotNull Class<T> clazz)
      Description copied from interface: ItemDefinition
      Used to find a matching item definition _within_ this definition. Treats e.g. de-referencing in prism references.
      Specified by:
      findItemDefinition in interface ItemDefinition<I extends Item>
    • createEmptyDelta

      @NotNull public @NotNull ItemDelta createEmptyDelta(ItemPath path)
      Description copied from interface: ItemDefinition
      Creates an empty delta (with appropriate implementation class), pointing to this item definition, with a given path.
      Specified by:
      createEmptyDelta in interface ItemDefinition<I extends Item>
    • clone

      @NotNull public @NotNull ItemDefinition<I> clone()
      Specified by:
      clone in interface Definition
      Specified by:
      clone in interface ItemDefinition<I extends Item>
      Overrides:
      clone in class Object
    • deepClone

      public ItemDefinition<I> deepClone(@NotNull @NotNull DeepCloneOperation operation)
      Description copied from interface: ItemDefinition
      TODO document
      Specified by:
      deepClone in interface ItemDefinition<I extends Item>
    • revive

      public void revive(PrismContext prismContext)
      Description copied from interface: Revivable
      TODO: Is revive necessary if prism context is static? TODO document (if it's found to be necessary)
      Specified by:
      revive in interface Revivable
    • debugDumpShortToString

      public void debugDumpShortToString(StringBuilder sb)
      Description copied from interface: ItemDefinition
      Used in debugDumping items. Does not need to have name in it as item already has it. Does not need to have class as that is just too much info that is almost anytime pretty obvious anyway.
      Specified by:
      debugDumpShortToString in interface ItemDefinition<I extends Item>
    • canBeDefinitionOf

      public boolean canBeDefinitionOf(I item)
      Description copied from interface: ItemDefinition
      TODO document
      Specified by:
      canBeDefinitionOf in interface ItemDefinition<I extends Item>
    • canBeDefinitionOf

      public boolean canBeDefinitionOf(PrismValue pvalue)
      Description copied from interface: ItemDefinition
      TODO document
      Specified by:
      canBeDefinitionOf in interface ItemDefinition<I extends Item>
    • toMutable

      public MutableItemDefinition<I> toMutable()
      Description copied from interface: Definition
      Returns an interface to mutate this definition.
      Specified by:
      toMutable in interface Definition
      Specified by:
      toMutable in interface ItemDefinition<I extends Item>
    • getTypeName

      @NotNull public @NotNull QName getTypeName()
      Description copied from interface: Definition
      Returns a name of the type for this definition. The type can be part of the compile-time schema or it can be defined at run time. Examples of the former case are types like c:UserType, xsd:string, or even flexible ones like c:ExtensionType or c:ShadowAttributesType. Examples of the latter case are types used in - custom extensions, like ext:LocationsType (where ext = e.g. http://example.com/extension), - resource schema, like ri:inetOrgPerson (ri = http://.../resource/instance-3), - connector schema, like TODO In XML representation that corresponds to the name of the XSD type. Although beware, the run-time types do not have statically defined structure. And the resource and connector-related types may even represent different kinds of objects within different contexts (e.g. two distinct resources both with ri:AccountObjectClass types). Also note that for complex type definitions, the type name serves as a unique identifier. On the other hand, for item definitions, it is just one of its attributes; primary key is item name in that case. The type name should be fully qualified. (TODO reconsider this)
      Specified by:
      getTypeName in interface Definition
      Returns:
      the type name
    • isRuntimeSchema

      public boolean isRuntimeSchema()
      Description copied from interface: Definition
      This means that this particular definition (of an item or of a type) is part of the runtime schema, e.g. extension schema, resource schema or connector schema or something like that. I.e. it is not defined statically.
      Specified by:
      isRuntimeSchema in interface Definition
    • isIgnored

      @Deprecated public boolean isIgnored()
      Deprecated.
      Description copied from interface: Definition
      Item definition that has this flag set should be ignored by any processing. The ignored item is still part of the schema. Item instances may appear in the serialized data formats (e.g. XML) or data store and the parser should not raise an error if it encounters them. But any high-level processing code should ignore presence of this item. E.g. it should not be displayed to the user, should not be present in transformed data structures, etc. Note that the same item can be ignored at higher layer (e.g. presentation) but not ignored at lower layer (e.g. model). This works by presenting different item definitions for these layers (see LayerRefinedAttributeDefinition). Semantics of this flag for complex type definitions is to be defined yet.
      Specified by:
      isIgnored in interface Definition
    • getProcessing

      public ItemProcessing getProcessing()
      Description copied from interface: Definition
      Level of processing (ignore, minimal, auto, full) for this item/type.
      Specified by:
      getProcessing in interface Definition
    • isAbstract

      public boolean isAbstract()
      Description copied from interface: Definition
      For types: is the type abstract so that it should not be instantiated directly? For items: TODO
      Specified by:
      isAbstract in interface Definition
    • getPlannedRemoval

      public String getPlannedRemoval()
      Description copied from interface: Definition
      Version of data model in which the item is likely to be removed. This annotation is used for deprecated item to indicate imminent incompatibility in future versions of data model.
      Specified by:
      getPlannedRemoval in interface Definition
    • isElaborate

      public boolean isElaborate()
      Description copied from interface: Definition
      Elaborate items are complicated data structure that may deviate from normal principles of the system. For example elaborate items may not be supported in user interface and may only be manageable by raw edits or a special-purpose tools. Elaborate items may be not fully supported by authorizations, schema tools and so on.
      Specified by:
      isElaborate in interface Definition
    • isEmphasized

      public boolean isEmphasized()
      Description copied from interface: Definition
      True for definitions that are more important than others and that should be emphasized during presentation. E.g. the emphasized definitions will always be displayed in the user interfaces (even if they are empty), they will always be included in the dumps, etc.
      Specified by:
      isEmphasized in interface Definition
    • getDisplayOrder

      public Integer getDisplayOrder()
      Description copied from interface: Definition
      Specifies an order in which the item should be displayed relative to other items at the same level. The items will be displayed by sorting them by the values of displayOrder annotation (ascending). Items that do not have any displayOrder annotation will be displayed last. The ordering of values with the same displayOrder is undefined and it may be arbitrary.
      Specified by:
      getDisplayOrder in interface Definition
    • setDisplayOrder

      public void setDisplayOrder(Integer displayOrder)
    • getDocumentation

      public String getDocumentation()
      Specified by:
      getDocumentation in interface Definition
    • getDocumentationPreview

      public String getDocumentationPreview()
      Description copied from interface: Definition
      Returns only a first sentence of documentation.
      Specified by:
      getDocumentationPreview in interface Definition
    • getPrismContext

      public PrismContext getPrismContext()
      Specified by:
      getPrismContext in interface PrismContextSensitive
    • getTypeClass

      public Class<?> getTypeClass()
      Description copied from interface: Definition
      Returns a compile-time class that is used to represent items. E.g. returns String, Integer, subclasses of Objectable and Containerable and so on.
      Specified by:
      getTypeClass in interface Definition
    • getAnnotation

      public <A> A getAnnotation(QName qname)
      Description copied from interface: Definition
      Returns generic definition annotation. Annotations are a method to extend schema definitions. This may be annotation stored in the schema definition file (e.g. XSD) or it may be a dynamic annotation determined at run-time. Annotation value should be a prism-supported object. E.g. a prims "bean" (JAXB annotated class), prism item, prism value or something like that. EXPERIMENTAL. Hic sunt leones. This may change at any moment. Note: annotations are only partially supported now (3.8). They are somehow transient. E.g. they are not serialized to XSD schema definitions (yet).
      Specified by:
      getAnnotation in interface Definition
    • setAnnotation

      public <A> void setAnnotation(QName qname, A value)
      Specified by:
      setAnnotation in interface Definition
    • getAnnotations

      @Nullable public @Nullable Map<QName,Object> getAnnotations()
      Description copied from interface: Definition
      Returns all annotations, as unmodifiable map. Nullable by design, to avoid creating lots of empty maps.
      Specified by:
      getAnnotations in interface Definition
    • getSchemaMigrations

      public List<SchemaMigration> getSchemaMigrations()
      Specified by:
      getSchemaMigrations in interface Definition
    • getDiagrams

      public List<ItemDiagramSpecification> getDiagrams()
      Specified by:
      getDiagrams in interface Definition
    • setReadOnly

      public void setReadOnly(boolean readOnly)
      Specified by:
      setReadOnly in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • getOldItem

      public I getOldItem()
    • isIndexOnly

      public boolean isIndexOnly()
      Description copied from interface: ItemDefinition
      If true, this item is not stored in XML representation in repo. TODO better name
      Specified by:
      isIndexOnly in interface ItemDefinition<I extends Item>
    • getVisibleOverwrite

      public UserInterfaceElementVisibilityType getVisibleOverwrite()
      Specified by:
      getVisibleOverwrite in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isVisible

      public boolean isVisible(PrismContainerValueWrapper<?> parent, ItemVisibilityHandler visibilityHandler)
      Specified by:
      isVisible in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isVisibleByVisibilityHandler

      protected boolean isVisibleByVisibilityHandler(ItemVisibilityHandler visibilityHandler)
    • remove

      public void remove(VW valueWrapper, ModelServiceLocator locator) throws SchemaException
      Specified by:
      remove in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
      Throws:
      SchemaException
    • removeAll

      public void removeAll(ModelServiceLocator locator) throws SchemaException
      Specified by:
      removeAll in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
      Throws:
      SchemaException
    • createNewEmptyValue

      protected abstract <PV extends PrismValue> PV createNewEmptyValue(ModelServiceLocator locator)
    • add

      public <PV extends PrismValue> void add(PV newValue, ModelServiceLocator locator) throws SchemaException
      Specified by:
      add in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
      Throws:
      SchemaException
    • isMetadata

      public boolean isMetadata()
      Specified by:
      isMetadata in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • setMetadata

      public void setMetadata(boolean metadata)
      Specified by:
      setMetadata in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • setShowMetadataDetails

      public void setShowMetadataDetails(boolean showMetadataDetails)
      Specified by:
      setShowMetadataDetails in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isShowMetadataDetails

      public boolean isShowMetadataDetails()
      Specified by:
      isShowMetadataDetails in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isProcessProvenanceMetadata

      public boolean isProcessProvenanceMetadata()
      Specified by:
      isProcessProvenanceMetadata in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • setProcessProvenanceMetadata

      public void setProcessProvenanceMetadata(boolean processProvenanceMetadata)
      Specified by:
      setProcessProvenanceMetadata in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • structuredType

      public Optional<ComplexTypeDefinition> structuredType()
      Description copied from interface: ItemDefinition
      Returns complex type definition of item, if underlying value is possible structured. NOTE: This seems weird, since properties and references are simple values, but actually object reference is serialized as structured value and some of properties are also.
      Specified by:
      structuredType in interface ItemDefinition<I extends Item>
    • getParentContainerValue

      public <C extends Containerable> PrismContainerValueWrapper<C> getParentContainerValue(Class<? extends C> parentClass)
      Specified by:
      getParentContainerValue in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • isValidated

      public boolean isValidated()
      Specified by:
      isValidated in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>
    • setValidated

      public void setValidated(boolean validated)
      Specified by:
      setValidated in interface ItemWrapper<I extends Item,VW extends PrismValueWrapper>