com.yahoo.bard.webservice.data.metric.mappers

Class RowNumMapper

java.lang.Object

com.yahoo.bard.webservice.data.metric.mappers.ResultSetMapper

com.yahoo.bard.webservice.data.metric.mappers.RowNumMapper

public class RowNumMapper
extends ResultSetMapper

Mapper to add row numbers to each result in a result set.

Constructor Summary

Constructors

Constructor and Description
RowNumMapper()

Method Summary

Modifier and Type	Method and Description
protected Result	map(Result result, ResultSetSchema schema) Returns a transformed result row, or null if the row is removed.
ResultSet	map(ResultSet resultSet) Take a complete result set and replace it with one altered according to the rules of the concrete mapper.
protected ResultSetSchema	map(ResultSetSchema schema) Returns a transformed schema.

Methods inherited from class com.yahoo.bard.webservice.data.metric.mappers.ResultSetMapper

equals, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RowNumMapper

public RowNumMapper()

Method Detail

map

public ResultSet map(ResultSet resultSet)

Description copied from class: ResultSetMapper

Take a complete result set and replace it with one altered according to the rules of the concrete mapper.

Overrides:

map in class ResultSetMapper

Parameters:

resultSet - The unmapped result set

Returns:

The mapped result set

map

protected Result map(Result result,
                     ResultSetSchema schema)

Description copied from class: ResultSetMapper

Returns a transformed result row, or null if the row is removed.

Specified by:

map in class ResultSetMapper

Parameters:

result - The result row being transformed

schema - The schema for that result

Returns:

The result row, a modified copy, or null (if row is eliminated)

map

protected ResultSetSchema map(ResultSetSchema schema)

Description copied from class: ResultSetMapper

Returns a transformed schema.

Specified by:

map in class ResultSetMapper

Parameters:

schema - The schema being mapped

Returns:

The same schema or a new (altered) one