uk.ac.starlink.ttools.plot2.data

Interface TupleSequence

All Superinterfaces:

Sequence, Splittable<TupleSequence>, Tuple

All Known Implementing Classes:

AbortTupleSequence, CachedTupleSequence

public interface TupleSequence
extends Tuple, Sequence, Splittable<TupleSequence>

Interface for iterating over points to plot. At each step, a tuple of values required for the plot is available. Elements of the tuple are addressed by index, i.e. column. Each step represents a point which is a candidate for plotting; some rows of the original data set may be excluded if that data set has been subsetted to produce this sequence.

This interface extends the Tuple interface, and is also a SplittableSequence. Objects implementing this interface allow access to each of their fields at the current row only.

Since:

6 Feb 2013

Author:

Mark Taylor

Method Summary

Modifier and Type	Method and Description
boolean	next() Advances to the next entry.

Methods inherited from interface uk.ac.starlink.ttools.plot2.data.Tuple

getBooleanValue, getDoubleValue, getIntValue, getLongValue, getObjectValue, getRowIndex

Methods inherited from interface uk.ac.starlink.util.Splittable

split, splittableSize

Method Detail

next

boolean next()

Advances to the next entry. No exception is thrown.

Specified by:

next in interface Sequence

Returns:

true iff the current sequence element has data