uk.ac.starlink.topcat.plot2
Class MultiConfigger

java.lang.Object
  uk.ac.starlink.topcat.plot2.MultiConfigger

public class MultiConfigger
extends Object

Configger implementation that aggregates config entries from a number of subordinate configgers. The subordinate configgers can be either global (applying to all zones) or per-zone (applying to only a requested zone id).

Since:

12 Mar 2013

Author:

Mark Taylor

Constructor Summary

MultiConfigger()
Constructor.

Method Summary

void	addGlobalConfigger(Configger configger) Adds a global subordinate configger to the list.
void	addZoneConfigger(ZoneId zid, Configger configger) Adds a subordinate configger that contributes configuration specific to a given zone.
uk.ac.starlink.ttools.plot2.config.ConfigMap	getGlobalConfig() Acquires that part of the configuration from subordinate configgers that applies to all zones.
uk.ac.starlink.ttools.plot2.config.ConfigMap	getZoneConfig(ZoneId zid) Acquires all the configuration from subordinate configgers that applies to a given zone.
Configger	layerConfigger(uk.ac.starlink.ttools.plot2.config.Specifier<ZoneId> zsel) Convenience method to return a dynamic configger whose configuration returns depend on the state at getConfig-time of a given zone selector.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MultiConfigger

public MultiConfigger()

Constructor.

Method Detail

addGlobalConfigger

public void addGlobalConfigger(Configger configger)

Adds a global subordinate configger to the list.

Parameters:

configger - item whose config values will be gathered for the result of this one

addZoneConfigger

public void addZoneConfigger(ZoneId zid,
                             Configger configger)

Adds a subordinate configger that contributes configuration specific to a given zone.

Parameters:

zid - zone id

configger - per-zone configger

getGlobalConfig

public uk.ac.starlink.ttools.plot2.config.ConfigMap getGlobalConfig()

Acquires that part of the configuration from subordinate configgers that applies to all zones.

Returns:

global config

getZoneConfig

public uk.ac.starlink.ttools.plot2.config.ConfigMap getZoneConfig(ZoneId zid)

Acquires all the configuration from subordinate configgers that applies to a given zone. This includes the global config.

Parameters:

zid - zone of interest

Returns:

configuration for zone

layerConfigger

public Configger layerConfigger(uk.ac.starlink.ttools.plot2.config.Specifier<ZoneId> zsel)

Convenience method to return a dynamic configger whose configuration returns depend on the state at getConfig-time of a given zone selector.

Returns:

zsel zone specifier