Uses of Class
dev.hardwood.schema.ColumnProjection

Packages that use ColumnProjection

Package	Description
dev.hardwood.reader
dev.hardwood.schema

Uses of ColumnProjection in dev.hardwood.reader

Methods in dev.hardwood.reader with parameters of type ColumnProjection

Modifier and Type	Method	Description
MultiFileColumnReaders	MultiFileParquetReader.createColumnReaders(ColumnProjection projection)	Create column readers for batch-oriented access to the requested columns.
MultiFileRowReader	MultiFileParquetReader.createRowReader(ColumnProjection projection)	Create a row reader that iterates over selected columns in all files.
RowReader	ParquetFileReader.createRowReader(ColumnProjection projection)	Create a RowReader that iterates over selected columns in all row groups.

Uses of ColumnProjection in dev.hardwood.schema

Methods in dev.hardwood.schema that return ColumnProjection

Modifier and Type	Method	Description
static ColumnProjection	ColumnProjection.all()	Returns a projection that includes all columns.
static ColumnProjection	ColumnProjection.columns(String... names)	Returns a projection that includes only the specified columns.

Methods in dev.hardwood.schema with parameters of type ColumnProjection

Modifier and Type	Method	Description
static ProjectedSchema	ProjectedSchema.create(FileSchema schema, ColumnProjection projection)	Creates a projected schema from the given full schema and projection.