uk.ac.starlink.topcat.interop
Class TopcatSampControl

java.lang.Object
  extended by uk.ac.starlink.topcat.interop.TopcatSampControl

public class TopcatSampControl
extends Object

Provides TOPCAT's SAMP functionality.

Since:
29 Aug 2008
Author:
Mark Taylor

Constructor Summary
TopcatSampControl(org.astrogrid.samp.client.HubConnector hubConnector, ControlWindow controlWindow)
          Constructor.
 
Method Summary
 Map createRowMessage(TopcatModel tcModel, long lrow)
          Creates a message suitable for sending a row highlight SAMP message to other clients.
 Map createSubsetMessage(TopcatModel tcModel, RowSubset rset)
          Creates a message suitable for sending a row list selection SAMP message to other clients.
 ControlWindow getControlWindow()
          Returns the control window which owns this connector.
 ListModel getIdentifiableTableListModel()
          Returns a ListModel listing the TopcatModels that can reasonably be used in SAMP messages that reference a table using the table-id/url message parameter (table.highlight.row, table.select.rowList).
 String getTableIdForSending(TopcatModel tcModel)
          Returns a public reference ID indicating the current state of a given TOPCAT table which will be used to send it in a SAMP message.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TopcatSampControl

public TopcatSampControl(org.astrogrid.samp.client.HubConnector hubConnector,
                         ControlWindow controlWindow)
                  throws IOException
Constructor.

Parameters:
controlWindow - TOPCAT top-level window
Throws:
IOException
Method Detail

getControlWindow

public ControlWindow getControlWindow()
Returns the control window which owns this connector.

Returns:
control window

getTableIdForSending

public String getTableIdForSending(TopcatModel tcModel)
Returns a public reference ID indicating the current state of a given TOPCAT table which will be used to send it in a SAMP message. For now, "state" refers to the combination of the table and its row sequence, though other items may become important if SAMP messages arise which require consistency of other attributes. Note: this method may update the list of tables known to have been sent via SAMP, which can be used to determine what tables are potentially referencable by other SAMP messages. For this reason, this method should not be invoked speculatively, but only if the intention is to actually send a message using the returned identifier.

Parameters:
tcModel - table to identify
Returns:
opaque ID string

createSubsetMessage

public Map createSubsetMessage(TopcatModel tcModel,
                               RowSubset rset)
Creates a message suitable for sending a row list selection SAMP message to other clients. It is sensibly done here because this class keeps track of which tables have been labelled with which IDs in communications with other SAMP clients.

Parameters:
tcModel - table
rset - row subset of tcModel to send
Returns:
table.select.rowList message

getIdentifiableTableListModel

public ListModel getIdentifiableTableListModel()
Returns a ListModel listing the TopcatModels that can reasonably be used in SAMP messages that reference a table using the table-id/url message parameter (table.highlight.row, table.select.rowList). Elements of the returned list are TopcatModels. TopcatModels may be added to this list when they have been involved in a relevant SAMP message (usually table.load.*). Code can register a listener on this list to be notified when the identifiability status of tables change.

Returns:
listmodel of identifiable tables

createRowMessage

public Map createRowMessage(TopcatModel tcModel,
                            long lrow)
Creates a message suitable for sending a row highlight SAMP message to other clients.

Parameters:
tcModel - table
lrow - index of row in tcModel to highlight
Returns:
table.highlight.row message, or null if no suitable message can be constructed


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