Abstract interface to write data into a tree.

The page sink takes the list of columns and afterwards a series of page commits and cluster commits. The user is responsible to commit clusters at consistent point, i.e. when all pages corresponding to data up to the given entry number are committed.

Definition at line 91 of file RPageStorage.hxx.

Public Member Functions
	RPageSink (std::string_view treeName)

virtual	~RPageSink ()

virtual void	CommitCluster (NTupleSize_t nEntries)=0
	Finalize the current cluster and create a new one for the following data. More...

virtual void	CommitDataset ()=0
	Finalize the current cluster and the entrire data set. More...

virtual void	CommitPage (ColumnHandle_t columnHandle, const RPage &page)=0
	Write a page to the storage. The column must have been added before. More...

virtual void	Create (RNTupleModel *model)=0
	Physically creates the storage container to hold the tree (e.g., a directory in a TFile or a S3 bucket) More...

EPageStorageType	GetType () final

Public Member Functions inherited from ROOT::Experimental::Detail::RPageStorage
	RPageStorage ()

	RPageStorage (const RPageStorage &other)=delete

virtual	~RPageStorage ()

virtual ColumnHandle_t	AddColumn (RColumn *column)=0
	Register a new column. More...

RPagePool *	GetPagePool () const

virtual EPageStorageType	GetType ()=0

RPageStorage &	operator= (const RPageStorage &other)=delete

Additional Inherited Members
Public Types inherited from ROOT::Experimental::Detail::RPageStorage
using	ColumnHandle_t = RColumnHandle
	The column handle identfies a column with the current open page storage. More...

Protected Attributes inherited from ROOT::Experimental::Detail::RPageStorage
std::unique_ptr< RPagePool >	fPagePool
	All data is shipped to and from physical storage in pages, and moderated through a page pool. More...