Package org.openrefine.operations

Class ExpressionBasedOperation.PositiveRowMapper

java.lang.Object

org.openrefine.model.RowInRecordMapper

org.openrefine.operations.ExpressionBasedOperation.PositiveRowMapper

All Implemented Interfaces:

Serializable, RecordMapper, RowMapper

Enclosing class:

ExpressionBasedOperation

protected static class ExpressionBasedOperation.PositiveRowMapper
extends RowInRecordMapper

Row mapper which calls a change data producer (to evaluate the expression) and directly calls the corresponding change data joiner (to insert the results in the row). This should only be used with expressions which are local and therefore cheap to evaluate.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.openrefine.model.RowInRecordMapper

IDENTITY

Constructor Summary

Constructors

Constructor	Description
PositiveRowMapper(RowInRecordChangeDataProducer<Cell> producer, RowInRecordChangeDataJoiner joiner)

Method Summary

Modifier and Type	Method	Description
Row	call(Record record, long rowId, Row row)	Maps a row, in the context of a record.
boolean	preservesRecordStructure()	Is this mapper guaranteed to preserve the records structure, both as a record mapper and a row mapper?

Methods inherited from class org.openrefine.model.RowInRecordMapper

call, call, fromRowMapper, preservesRowCount

Methods inherited from class java.lang.Object

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

Constructor Detail

PositiveRowMapper

public PositiveRowMapper(RowInRecordChangeDataProducer<Cell> producer,
                         RowInRecordChangeDataJoiner joiner)

Method Detail

call

public Row call(Record record,
                long rowId,
                Row row)

Description copied from class: RowInRecordMapper

Maps a row, in the context of a record.

Specified by:

call in class RowInRecordMapper

Parameters:

record - the record enclosing the row to map

rowId - the global index of the row in the entire grid

row - the row itself

preservesRecordStructure

public boolean preservesRecordStructure()

Description copied from class: RowInRecordMapper

Is this mapper guaranteed to preserve the records structure, both as a record mapper and a row mapper?

Specified by:

preservesRecordStructure in interface RecordMapper

Specified by:

preservesRecordStructure in interface RowMapper

Specified by:

preservesRecordStructure in class RowInRecordMapper