Package uk.ac.starlink.ttools.plot2.data
Class ByteStoreColumnFactory
java.lang.Object
uk.ac.starlink.ttools.plot2.data.ByteStoreColumnFactory
- All Implemented Interfaces:
CachedColumnFactory
ColumnFactory that stores column data in ByteStores.
- Since:
- 23 Dec 2019
- Author:
- Mark Taylor
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Constructor Summary
ConstructorsConstructorDescriptionByteStoreColumnFactory
(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. -
Method Summary
Modifier and TypeMethodDescriptioncreateColumn
(StorageType type, long nrow) Creates a data storage object capable of storing a vector of a given type.
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Constructor Details
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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
Constructs a ByteStoreColumnFactory based on a ByteStore supplier.- Parameters:
byteStoreSupplier
- supplier
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Method Details
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createColumn
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
- maximum number of elements to be stored; if a value <0 is supplied, an indeterminate number is permitted- Returns:
- storage object
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