Package uk.ac.starlink.ttools.plot2.data
Class ByteStoreColumnFactory
- java.lang.Object
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- uk.ac.starlink.ttools.plot2.data.ByteStoreColumnFactory
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- All Implemented Interfaces:
CachedColumnFactory
public class ByteStoreColumnFactory extends java.lang.Object implements CachedColumnFactory
ColumnFactory that stores column data in ByteStores.- Since:
- 23 Dec 2019
- Author:
- Mark Taylor
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Constructor Summary
Constructors Constructor Description ByteStoreColumnFactory(java.util.function.Supplier<uk.ac.starlink.table.ByteStore> byteStoreSupplier)
Constructs a ByteStoreColumnFactory based on a ByteStore supplier.ByteStoreColumnFactory(uk.ac.starlink.table.StoragePolicy storage)
Constructs a ByteStoreColumnFactory based on a StoragePolicy.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description CachedColumn
createColumn(StorageType type, long nrow)
Creates a data storage object capable of storing a vector of a given type.
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Constructor Detail
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ByteStoreColumnFactory
public ByteStoreColumnFactory(uk.ac.starlink.table.StoragePolicy storage)
Constructs a ByteStoreColumnFactory based on a StoragePolicy.- Parameters:
storage
- storage policy
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ByteStoreColumnFactory
public ByteStoreColumnFactory(java.util.function.Supplier<uk.ac.starlink.table.ByteStore> byteStoreSupplier)
Constructs a ByteStoreColumnFactory based on a ByteStore supplier.- Parameters:
byteStoreSupplier
- supplier
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Method Detail
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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 interfaceCachedColumnFactory
- Parameters:
type
- data type of elements to be storednrow
- number of elements to be stored; if a value <0 is supplied, an indeterminate number will be stored- Returns:
- storage object
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