The field for an unscoped or scoped enum with dictionary.
Definition at line 211 of file RField.hxx.
Public Member Functions | |
REnumField (REnumField &&other)=default | |
REnumField (std::string_view fieldName, std::string_view enumName) | |
~REnumField () override=default | |
void | AcceptVisitor (Detail::RFieldVisitor &visitor) const final |
size_t | GetAlignment () const final |
As a rule of thumb, the alignment is equal to the size of the type. | |
size_t | GetValueSize () const final |
The number of bytes taken by a value of the appropriate type. | |
REnumField & | operator= (REnumField &&other)=default |
std::vector< RValue > | SplitValue (const RValue &value) const final |
Creates the list of direct child values given a value for this field. | |
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RFieldBase (const RFieldBase &)=delete | |
RFieldBase (RFieldBase &&)=default | |
RFieldBase (std::string_view name, std::string_view type, ENTupleStructure structure, bool isSimple, std::size_t nRepetitions=0) | |
The constructor creates the underlying column objects and connects them to either a sink or a source. | |
virtual | ~RFieldBase ()=default |
RSchemaIterator | begin () |
RValue | BindValue (std::shared_ptr< void > objPtr) |
Creates a value from a memory location with an already constructed object. | |
RConstSchemaIterator | cbegin () const |
RConstSchemaIterator | cend () const |
std::unique_ptr< RFieldBase > | Clone (std::string_view newName) const |
Copies the field and its sub fields using a possibly new name and a new, unconnected set of columns. | |
RBulk | CreateBulk () |
The returned bulk is initially empty; RBulk::ReadBulk will construct the array of values. | |
template<> | |
std::unique_ptr< void, typename RFieldBase::RCreateObjectDeleter< void >::deleter > | CreateObject () const |
template<typename T > | |
std::unique_ptr< T, typename RCreateObjectDeleter< T >::deleter > | CreateObject () const |
Generates an object of the field type and allocates new initialized memory according to the type. | |
template<> | |
std::unique_ptr< void, typename ROOT::Experimental::RFieldBase::RCreateObjectDeleter< void >::deleter > | CreateObject () const |
RValue | CreateValue () |
Generates an object of the field type and wraps the created object in a shared pointer and returns it an RValue connected to the field. | |
RSchemaIterator | end () |
RColumnRepresentations::Selection_t | GetColumnRepresentatives () const |
Returns the fColumnRepresentative pointee or, if unset, the field's default representative. | |
const std::string & | GetDescription () const |
Get the field's description. | |
const std::string & | GetFieldName () const |
virtual std::uint32_t | GetFieldVersion () const |
Indicates an evolution of the mapping scheme from C++ type to columns. | |
NTupleSize_t | GetNElements () const |
std::size_t | GetNRepetitions () const |
DescriptorId_t | GetOnDiskId () const |
std::uint32_t | GetOnDiskTypeChecksum () const |
Return checksum stored in the field descriptor; only valid after a call to ConnectPageSource() , if the field stored a type checksum. | |
std::uint32_t | GetOnDiskTypeVersion () const |
Return the C++ type version stored in the field descriptor; only valid after a call to ConnectPageSource() | |
const RFieldBase * | GetParent () const |
std::string | GetQualifiedFieldName () const |
Returns the field name and parent field names separated by dots ("grandparent.parent.child") | |
EState | GetState () const |
ENTupleStructure | GetStructure () const |
std::vector< RFieldBase * > | GetSubFields () |
std::vector< const RFieldBase * > | GetSubFields () const |
int | GetTraits () const |
const std::string & | GetTypeAlias () const |
virtual std::uint32_t | GetTypeChecksum () const |
Return the current TClass reported checksum of this class. Only valid if kTraitTypeChecksum is set. | |
const std::string & | GetTypeName () const |
virtual std::uint32_t | GetTypeVersion () const |
Indicates an evolution of the C++ type itself. | |
bool | HasDefaultColumnRepresentative () const |
Whether or not an explicit column representative was set. | |
bool | HasReadCallbacks () const |
bool | IsSimple () const |
RFieldBase & | operator= (const RFieldBase &)=delete |
RFieldBase & | operator= (RFieldBase &&)=default |
void | SetColumnRepresentatives (const RColumnRepresentations::Selection_t &representatives) |
Fixes a column representative. | |
void | SetDescription (std::string_view description) |
void | SetOnDiskId (DescriptorId_t id) |
Protected Member Functions | |
std::size_t | AppendImpl (const void *from) final |
Operations on values of complex types, e.g. | |
std::unique_ptr< RFieldBase > | CloneImpl (std::string_view newName) const final |
Called by Clone(), which additionally copies the on-disk ID. | |
void | ConstructValue (void *where) const final |
Constructs value in a given location of size at least GetValueSize(). Called by the base class' CreateValue(). | |
void | ReadGlobalImpl (NTupleSize_t globalIndex, void *to) final |
void | ReadInClusterImpl (RClusterIndex clusterIndex, void *to) final |
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size_t | AddReadCallback (ReadCallback_t func) |
Set a user-defined function to be called after reading a value, giving a chance to inspect and/or modify the value object. | |
std::size_t | Append (const void *from) |
Write the given value into columns. | |
void | Attach (std::unique_ptr< RFieldBase > child) |
Add a new subfield to the list of nested fields. | |
void | AutoAdjustColumnTypes (const RNTupleWriteOptions &options) |
When connecting a field to a page sink, the field's default column representation is subject to adjustment according to the write options. | |
virtual void | CommitClusterImpl () |
const ColumnRepresentation_t & | EnsureCompatibleColumnTypes (const RNTupleDescriptor &desc, std::uint16_t representationIndex) const |
Returns the on-disk column types found in the provided descriptor for fOnDiskId and the given representation index. | |
virtual void | GenerateColumns () |
Implementations in derived classes should create the backing columns corresponsing to the field type for writing. | |
virtual void | GenerateColumns (const RNTupleDescriptor &) |
Implementations in derived classes should create the backing columns corresponsing to the field type for reading. | |
template<typename... ColumnCppTs> | |
void | GenerateColumnsImpl () |
For writing, use the currently set column representative. | |
template<std::uint32_t ColumnIndexT, typename HeadT , typename... TailTs> | |
void | GenerateColumnsImpl (const ColumnRepresentation_t &representation, std::uint16_t representationIndex) |
Helpers for generating columns. | |
template<typename... ColumnCppTs> | |
void | GenerateColumnsImpl (const RNTupleDescriptor &desc) |
For reading, use the on-disk column list. | |
virtual const RColumnRepresentations & | GetColumnRepresentations () const |
Implementations in derived classes should return a static RColumnRepresentations object. | |
virtual std::unique_ptr< RDeleter > | GetDeleter () const |
virtual RExtraTypeInfoDescriptor | GetExtraTypeInfo () const |
virtual bool | HasExtraTypeInfo () const |
virtual void | OnConnectPageSource () |
Called by ConnectPageSource() once connected; derived classes may override this as appropriate. | |
void | Read (NTupleSize_t globalIndex, void *to) |
Populate a single value with data from the field. | |
void | Read (RClusterIndex clusterIndex, void *to) |
std::size_t | ReadBulk (const RBulkSpec &bulkSpec) |
Returns the number of newly available values, that is the number of bools in bulkSpec.fMaskAvail that flipped from false to true. | |
virtual std::size_t | ReadBulkImpl (const RBulkSpec &bulkSpec) |
General implementation of bulk read. | |
void | RemoveReadCallback (size_t idx) |
Private Member Functions | |
REnumField (std::string_view fieldName, std::string_view enumName, std::unique_ptr< RFieldBase > intField) | |
REnumField (std::string_view fieldName, std::string_view enumName, TEnum *enump) | |
Additional Inherited Members | |
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using | ColumnRepresentation_t = std::vector< EColumnType > |
enum class | EState { kUnconnected , kConnectedToSink , kConnectedToSource } |
During its lifetime, a field undergoes the following possible state transitions: More... | |
using | RConstSchemaIterator = RSchemaIteratorTemplate< true > |
using | RSchemaIterator = RSchemaIteratorTemplate< false > |
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static std::vector< RCheckResult > | Check (const std::string &fieldName, const std::string &typeName) |
Checks if the given type is supported by RNTuple. | |
static RResult< std::unique_ptr< RFieldBase > > | Create (const std::string &fieldName, const std::string &typeName) |
Factory method to resurrect a field from the stored on-disk type information. | |
static RResult< void > | EnsureValidFieldName (std::string_view fieldName) |
Check whether a given string is a valid field name. | |
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static constexpr std::uint32_t | kInvalidTypeVersion = -1U |
static constexpr int | kTraitMappable = 0x04 |
A field of a fundamental type that can be directly mapped via RField<T>::Map() , i.e. | |
static constexpr int | kTraitTriviallyConstructible = 0x01 |
No constructor needs to be called, i.e. | |
static constexpr int | kTraitTriviallyDestructible = 0x02 |
The type is cleaned up just by freeing its memory. I.e. the destructor performs a no-op. | |
static constexpr int | kTraitTrivialType = kTraitTriviallyConstructible | kTraitTriviallyDestructible |
Shorthand for types that are both trivially constructible and destructible. | |
static constexpr int | kTraitTypeChecksum = 0x08 |
The TClass checksum is set and valid. | |
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static std::size_t | CallAppendOn (RFieldBase &other, const void *from) |
Allow derived classes to call Append and Read on other (sub) fields. | |
static void | CallConstructValueOn (const RFieldBase &other, void *where) |
Allow derived classes to call ConstructValue(void *) and GetDeleter on other (sub) fields. | |
static void | CallReadOn (RFieldBase &other, NTupleSize_t globalIndex, void *to) |
static void | CallReadOn (RFieldBase &other, RClusterIndex clusterIndex, void *to) |
static RResult< std::unique_ptr< RFieldBase > > | Create (const std::string &fieldName, const std::string &canonicalType, const std::string &typeAlias, bool fContinueOnError=false) |
Factory method to resurrect a field from the stored on-disk type information. | |
static std::unique_ptr< RDeleter > | GetDeleterOf (const RFieldBase &other) |
static Internal::RColumn * | GetPrincipalColumnOf (const RFieldBase &other) |
Fields may need direct access to the principal column of their sub fields, e.g. in RRVecField::ReadBulk. | |
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Internal::RColumn * | fAuxiliaryColumn = nullptr |
Some fields have a second column in its column representation. | |
std::vector< std::unique_ptr< Internal::RColumn > > | fAvailableColumns |
The columns are connected either to a sink or to a source (not to both); they are owned by the field. | |
std::vector< std::reference_wrapper< const ColumnRepresentation_t > > | fColumnRepresentatives |
Pointers into the static vector GetColumnRepresentations().GetSerializationTypes() when SetColumnRepresentatives is called. | |
std::uint32_t | fOnDiskTypeChecksum = 0 |
TClass checksum cached from the descriptor after a call to ConnectPageSource() . | |
std::uint32_t | fOnDiskTypeVersion = kInvalidTypeVersion |
C++ type version cached from the descriptor after a call to ConnectPageSource() | |
RFieldBase * | fParent |
Sub fields point to their mother field. | |
Internal::RColumn * | fPrincipalColumn = nullptr |
All fields that have columns have a distinct main column. | |
std::vector< ReadCallback_t > | fReadCallbacks |
List of functions to be called after reading a value. | |
std::vector< std::unique_ptr< RFieldBase > > | fSubFields |
Collections and classes own sub fields. | |
int | fTraits = 0 |
Properties of the type that allow for optimizations of collections of that type. | |
std::string | fTypeAlias |
A typedef or using name that was used when creating the field. | |
#include <ROOT/RField.hxx>
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private |
Definition at line 2045 of file RField.cxx.
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private |
Definition at line 2073 of file RField.cxx.
ROOT::Experimental::REnumField::REnumField | ( | std::string_view | fieldName, |
std::string_view | enumName | ||
) |
Definition at line 2040 of file RField.cxx.
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default |
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overridedefault |
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finalvirtual |
Reimplemented from ROOT::Experimental::RFieldBase.
Definition at line 2096 of file RField.cxx.
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inlinefinalprotectedvirtual |
Operations on values of complex types, e.g.
ones that involve multiple columns or for which no direct column type exists.
Reimplemented from ROOT::Experimental::RFieldBase.
Definition at line 221 of file RField.hxx.
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finalprotectedvirtual |
Called by Clone(), which additionally copies the on-disk ID.
Implements ROOT::Experimental::RFieldBase.
Definition at line 2082 of file RField.cxx.
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inlinefinalprotectedvirtual |
Constructs value in a given location of size at least GetValueSize(). Called by the base class' CreateValue().
Implements ROOT::Experimental::RFieldBase.
Definition at line 219 of file RField.hxx.
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inlinefinalvirtual |
As a rule of thumb, the alignment is equal to the size of the type.
There are, however, various exceptions to this rule depending on OS and CPU architecture. So enforce the alignment to be explicitly spelled out.
Implements ROOT::Experimental::RFieldBase.
Definition at line 233 of file RField.hxx.
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inlinefinalvirtual |
The number of bytes taken by a value of the appropriate type.
Implements ROOT::Experimental::RFieldBase.
Definition at line 232 of file RField.hxx.
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default |
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inlinefinalprotectedvirtual |
Reimplemented from ROOT::Experimental::RFieldBase.
Definition at line 222 of file RField.hxx.
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inlinefinalprotectedvirtual |
Reimplemented from ROOT::Experimental::RFieldBase.
Definition at line 223 of file RField.hxx.
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finalvirtual |
Creates the list of direct child values given a value for this field.
E.g. a single value for the correct variant or all the elements of a collection. The default implementation assumes no sub values and returns an empty vector.
Reimplemented from ROOT::Experimental::RFieldBase.
Definition at line 2089 of file RField.cxx.