Package uk.ac.starlink.topcat
Class TopcatExtApp
java.lang.Object
uk.ac.starlink.topcat.TopcatExtApp
- All Implemented Interfaces:
ExtApp
ExtApp implementation for TOPCAT. This is the interface via which
Aladin talks to external applications.
Aladin's model (i.e. the VOPlot model) of what an external application
is expected to look like is not quite the same as TOPCAT's, so
the methods don't all do exactly what the interface says they should,
but it should be enough to implement useful communication.
- Since:
- 14 Oct 2005
- Author:
- Mark Taylor
-
Method Summary
Modifier and TypeMethodDescriptionexecCommand
(String cmd) Allow an "external" application to control by script this applicationvoid
loadVOTable
(ExtApp app, InputStream in) Allow an "external" application to send new data via an InputStream in VOTable format.void
selectVOTableObject
(String[] oids) Call or Callback asking the other application to SELECT objects found in a VOTable previous transmission via loadVOTable() method.void
setVisible
(boolean flag) Allow an "external" application to show or hide this applicationvoid
showVOTableObject
(String[] oids) Call or Callback asking the other application to SHOW objects found in a VOTable previous transmission via loadVOTable() method.toString()
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Method Details
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loadVOTable
Description copied from interface:ExtApp
Allow an "external" application to send new data via an InputStream in VOTable format. The reference to this "external" application has to passed in order to eventually calls back the "external" application, or to be called again by the "external" application concerning the VOTable objects that it had sent before (see showVOTableObject() and selectVOTableObject() methods below) For this calls or callbacks, the "external" application has to create a new VOTable column giving an unique identifier for each object that it has sent. This column has to be described by the following VOTable FIELD tag :. It is strongly recommended to add an unambigus prefix to avoid conflicts with the assignations done by the "external" application and its own assignations. The unicity has to be maintained during all the session. It means that successive VOTables must have difference unique identifiers. - Specified by:
loadVOTable
in interfaceExtApp
- Parameters:
app
- "external" application compliante with ExtApp java interfacein
- VOTable stream
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setVisible
public void setVisible(boolean flag) Description copied from interface:ExtApp
Allow an "external" application to show or hide this application- Specified by:
setVisible
in interfaceExtApp
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execCommand
Description copied from interface:ExtApp
Allow an "external" application to control by script this application- Specified by:
execCommand
in interfaceExtApp
- Parameters:
cmd
- script command depending to this application- Returns:
- error or messages, can be null
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showVOTableObject
Description copied from interface:ExtApp
Call or Callback asking the other application to SHOW objects found in a VOTable previous transmission via loadVOTable() method. The action "SHOW" is a choice of the other application (for example a blink)- Specified by:
showVOTableObject
in interfaceExtApp
- Parameters:
oids
- list of identifiers found in VOTables (see comment of the loadVOTable() method.
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selectVOTableObject
Description copied from interface:ExtApp
Call or Callback asking the other application to SELECT objects found in a VOTable previous transmission via loadVOTable() method. The action "SELECT" is a choice of the other application (for example select objects by showing the corresponding measurements, it can be the same thing that the "SHOW" action - see showVOTableObject() method.)- Specified by:
selectVOTableObject
in interfaceExtApp
- Parameters:
oids
- list of identifiers found in VOTables (see comment of the loadVOTable() method.
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toString
-