uk.ac.starlink.ttools.plot2.data

Class CoordSpec

java.lang.Object

uk.ac.starlink.ttools.plot2.data.CoordSpec

@Equality
public class CoordSpec
extends Object

Characterises information about a coordinate value. It aggregates a table and a coordId, and provides the capability of reading the corresponding value data from a row sequence.

Since:

6 Jan 2020

Author:

Mark Taylor

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	CoordSpec.Reader Reads a data value object.

Constructor Summary

Constructors

Constructor and Description
CoordSpec(DataSpec dataSpec, int icoord) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String	getCoordId() Returns the unique coordinate identifier for this spec.
StorageType	getStorageType() Returns the storage type for this column.
StarTable	getTable() Returns the table to which this coord belongs.
int	hashCode()
String	toString()
CoordSpec.Reader	valueReader(RowData rdata) Returns an object that can read the user value for this coordinate from the current row of a supplied a row sequence.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CoordSpec

public CoordSpec(DataSpec dataSpec,
                 int icoord)

Constructor.

Parameters:

dataSpec - data specification

icoord - coordinate index within dataSpec

Method Detail

getTable

public StarTable getTable()

Returns the table to which this coord belongs.

Returns:

table

getStorageType

public StorageType getStorageType()

Returns the storage type for this column.

Returns:

storage type

getCoordId

public String getCoordId()

Returns the unique coordinate identifier for this spec.

Returns:

coord ID

valueReader

public CoordSpec.Reader valueReader(RowData rdata)

Returns an object that can read the user value for this coordinate from the current row of a supplied a row sequence.

Parameters:

rdata - row data for this coord spec's table

Returns:

value reader

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object