A helper class for piece-wise construction of an RFieldDescriptor.
Dangling field descriptors describe a single field in isolation. They are missing the necessary relationship information (parent field, any child fields) required to describe a real NTuple field.
Dangling field descriptors can only become actual descriptors when added to an RNTupleDescriptorBuilder instance and then linked to other fields.
Definition at line 981 of file RNTupleDescriptor.hxx.
Static Public Member Functions | |
static RFieldDescriptorBuilder | FromField (const RFieldBase &field) |
Make a new RFieldDescriptorBuilder based off a live NTuple field. | |
Private Attributes | |
RFieldDescriptor | fField = RFieldDescriptor() |
#include <ROOT/RNTupleDescriptor.hxx>
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default |
Make an empty dangling field descriptor.
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explicit |
Make a new RFieldDescriptorBuilder based off an existing descriptor.
Relationship information is lost during the conversion to a dangling descriptor:
These properties must be set using RNTupleDescriptorBuilder::AddFieldLink().
Definition at line 763 of file RNTupleDescriptor.cxx.
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Definition at line 1021 of file RNTupleDescriptor.hxx.
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Definition at line 999 of file RNTupleDescriptor.hxx.
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inline |
Definition at line 1017 of file RNTupleDescriptor.hxx.
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inline |
Definition at line 1003 of file RNTupleDescriptor.hxx.
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static |
Make a new RFieldDescriptorBuilder based off a live NTuple field.
Definition at line 771 of file RNTupleDescriptor.cxx.
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inline |
Definition at line 1042 of file RNTupleDescriptor.hxx.
ROOT::Experimental::RResult< ROOT::Experimental::RFieldDescriptor > ROOT::Experimental::Internal::RFieldDescriptorBuilder::MakeDescriptor | ( | ) | const |
Attempt to make a field descriptor.
This may fail if the dangling field was not given enough information to make a proper descriptor.
Definition at line 786 of file RNTupleDescriptor.cxx.
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inline |
Definition at line 1034 of file RNTupleDescriptor.hxx.
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Definition at line 1013 of file RNTupleDescriptor.hxx.
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inline |
Definition at line 1038 of file RNTupleDescriptor.hxx.
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Definition at line 1029 of file RNTupleDescriptor.hxx.
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Definition at line 1025 of file RNTupleDescriptor.hxx.
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inline |
Definition at line 1008 of file RNTupleDescriptor.hxx.
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private |
Definition at line 983 of file RNTupleDescriptor.hxx.