public class RandomFilter extends BasicFilter implements ProcessingStep
Tables.randomTable(uk.ac.starlink.table.StarTable)
utility.Constructor and Description |
---|
RandomFilter() |
Modifier and Type | Method and Description |
---|---|
ProcessingStep |
createStep(Iterator<String> argIt)
Creates a new ProcessingStep based on a sequence of command-line
arguments.
|
protected String[] |
getDescriptionLines() |
StarTable |
wrap(StarTable in)
Performs a table filtering step.
|
explainSyntax, getDescription, getName, getUsage
protected String[] getDescriptionLines()
getDescriptionLines
in class BasicFilter
public ProcessingStep createStep(Iterator<String> argIt)
ProcessingFilter
argIt
argument is an iterator over the
command-line arguments positioned just before any arguments
intended for this filter. If legal, any that can be comprehended
by this filter should be read (iterated over) and removed,
and a ProcessingStep
should accordingly be returned.
In the case of a successful return, it is essential
that no arguments other than the ones intended for this
filter are read from the iterator.
If the argument list is badly-formed as far as this filter is
concerned, an ArgException
should be thrown.
createStep
in interface ProcessingFilter
argIt
- iterator over command-line arguments positioned
at the first onepublic StarTable wrap(StarTable in) throws IOException
ProcessingStep
wrap
in interface ProcessingStep
in
- input tableIOException
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