uk.ac.starlink.ttools.task
Class CatMapper

java.lang.Object
  extended by uk.ac.starlink.ttools.task.CatMapper
All Implemented Interfaces:
TableMapper

public class CatMapper
extends Object
implements TableMapper

TableMapper which concatenates tables top to bottom.

Since:
15 Sep 2006
Author:
Mark Taylor

Constructor Summary
CatMapper(boolean hasLazy)
          Constructor.
 
Method Summary
 TableMapping createMapping(uk.ac.starlink.task.Environment env, int nin)
          Creates a new mapping object, using a given execution environment for any additional required state.
 uk.ac.starlink.task.Parameter[] getParameters()
          Returns the parameters defined by this mapper.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CatMapper

public CatMapper(boolean hasLazy)
Constructor.

Parameters:
hasLazy - whether this mapper is to make use of a lazy parameter
Method Detail

getParameters

public uk.ac.starlink.task.Parameter[] getParameters()
Description copied from interface: TableMapper
Returns the parameters defined by this mapper.

Specified by:
getParameters in interface TableMapper
Returns:
parameter array

createMapping

public TableMapping createMapping(uk.ac.starlink.task.Environment env,
                                  int nin)
                           throws uk.ac.starlink.task.TaskException
Description copied from interface: TableMapper
Creates a new mapping object, using a given execution environment for any additional required state.

Specified by:
createMapping in interface TableMapper
Parameters:
env - execution environment
nin - number of input tables that the mapping will operate on if known; -1 if not
Throws:
uk.ac.starlink.task.TaskException


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