Package uk.ac.starlink.array
Class ScratchNDArray
- java.lang.Object
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- uk.ac.starlink.array.DefaultArrayDescription
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- uk.ac.starlink.array.BridgeNDArray
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- uk.ac.starlink.array.ScratchNDArray
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- All Implemented Interfaces:
ArrayDescription
,NDArray
- Direct Known Subclasses:
CopyNDArray
public class ScratchNDArray extends BridgeNDArray
An NDArray with data held in a fast random-access scratch array in memory or on local disk.- Author:
- Mark Taylor (Starlink)
- See Also:
CopyNDArray
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
ScratchNDArray.BackingStore
Typesafe enum class enumerating the types of backing store implementation available.
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Field Summary
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Fields inherited from class uk.ac.starlink.array.DefaultArrayDescription
arrayDims, arrayHandler, arrayIsRandom, arrayIsReadable, arrayIsWritable, arrayNdim, arrayNpix, arrayOrder, arrayOrigin, arrayShape, arrayType
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Constructor Summary
Constructors Constructor Description ScratchNDArray(ArrayDescription template)
Constructs a scratch array with shape, type and bad value handling characteristics copied from a template ArrayDescription.ScratchNDArray(OrderedNDShape shape, Type type, BadHandler badHandler)
Constructs a scratch array with shape, type and bad value handling supplied explicitly.ScratchNDArray(OrderedNDShape shape, Type type, BadHandler badHandler, ScratchNDArray.BackingStore bstore)
Constructs a scratch array with shape, type, bad value handling and backing store type supplied explicitly.
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Method Summary
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Methods inherited from class uk.ac.starlink.array.BridgeNDArray
close, getAccess, getImpl, getURL, multipleAccess, toString
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Methods inherited from class uk.ac.starlink.array.DefaultArrayDescription
getBadHandler, getShape, getType, isRandom, isReadable, isWritable
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface uk.ac.starlink.array.ArrayDescription
getBadHandler, getShape, getType, isRandom, isReadable, isWritable
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Constructor Detail
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ScratchNDArray
public ScratchNDArray(ArrayDescription template)
Constructs a scratch array with shape, type and bad value handling characteristics copied from a template ArrayDescription. The nature of the backing store is chosen automatically based on how large the requested array will be.- Parameters:
template
- NDArray
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ScratchNDArray
public ScratchNDArray(OrderedNDShape shape, Type type, BadHandler badHandler)
Constructs a scratch array with shape, type and bad value handling supplied explicitly. The nature of the backing store is chosen automatically based on how large the requested array will be.- Parameters:
shape
- shape of the new arraytype
- primitive data type of the new arraybadHandler
- bad value handler to use for the new array
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ScratchNDArray
public ScratchNDArray(OrderedNDShape shape, Type type, BadHandler badHandler, ScratchNDArray.BackingStore bstore)
Constructs a scratch array with shape, type, bad value handling and backing store type supplied explicitly.- Parameters:
shape
- shape of the new arraytype
- primitive data type of the new arraybadHandler
- bad value handler to use for the new arraybstore
- indicates what method should be used to implement the backing store of the array
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