TableMapper (Starjava TTOOLS API)

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All Known Implementing Classes:

CatMapper, ColumnSelectionMapper, JoinMapper, Match2Mapper, MatchMapper, SkyMatch2Mapper, TapMapper
```
public interface TableMapper
```
Interface for an operation which takes zero or more tables as input and produces one table as output.

Since:

9 Aug 2005

Author:

Mark Taylor

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`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.

- Method Detail
  - getParameters
```
uk.ac.starlink.task.Parameter[] getParameters()
```
    Returns the parameters defined by this mapper.
    
    Returns:
    
    parameter array
  - createMapping
```
TableMapping createMapping(uk.ac.starlink.task.Environment env,
                           int nin)
                    throws uk.ac.starlink.task.TaskException
```
    Creates a new mapping object, using a given execution environment for any additional required state.
    
    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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