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public interface TableMapper
Interface for an operation which takes zero or more tables as input and produces one table as output.
Method Summary | |
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TableMapping |
createMapping(Environment env,
int nin)
Creates a new mapping object, using a given execution environment for any additional required state. |
Parameter[] |
getParameters()
Returns the parameters defined by this mapper. |
Method Detail |
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Parameter[] getParameters()
TableMapping createMapping(Environment env, int nin) throws TaskException
env
- execution environmentnin
- number of input tables that the mapping will operate on
if known; -1 if not
TaskException
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