Package uk.ac.starlink.ttools.plot2.data

Class ByteStoreColumnFactory

java.lang.Object
uk.ac.starlink.ttools.plot2.data.ByteStoreColumnFactory
All Implemented Interfaces:
CachedColumnFactory
public class ByteStoreColumnFactory extends Object implements CachedColumnFactory
ColumnFactory that stores column data in ByteStores.
Since:
23 Dec 2019
Author:
Mark Taylor

  • Constructor Details

    • ByteStoreColumnFactory

      public ByteStoreColumnFactory(uk.ac.starlink.table.StoragePolicy storage)
      Constructs a ByteStoreColumnFactory based on a StoragePolicy.
      Parameters:
      storage - storage policy

    • ByteStoreColumnFactory

      public ByteStoreColumnFactory(Supplier<uk.ac.starlink.table.ByteStore> byteStoreSupplier)
      Constructs a ByteStoreColumnFactory based on a ByteStore supplier.
      Parameters:
      byteStoreSupplier - supplier

  • Method Details

    • createColumn

      public CachedColumn createColumn(StorageType type, long nrow)
      Description copied from interface: CachedColumnFactory
      Creates a data storage object capable of storing a vector of a given type. Both fixed and unknown element counts are supported.
      Specified by:
      createColumn in interface CachedColumnFactory
      Parameters:
      type - data type of elements to be stored
      nrow - maximum number of elements to be stored; if a value <0 is supplied, an indeterminate number is permitted
      Returns:
      storage object