com.pervasive.datarush.types

Interface FieldRemapping

public interface FieldRemapping

A transformation on a record type. Users should not need to directly implement instances of this interface. Instead, they should use the convenience methods provided in RemapFields for constructing transformations.

Method Summary

Modifier and Type	Method and Description
RecordTokenType	apply(RecordTokenType srcType, Map<String,String> mapping) Computes the result of applying the transformation to a record type.
List<String>	getMappings(String name) Gets the fields in the target to which the specified source field is mapped.

Method Detail

apply

RecordTokenType apply(RecordTokenType srcType,
                      Map<String,String> mapping)

Computes the result of applying the transformation to a record type. A target-to-source mapping is also computed.

Parameters:

srcType - the type being transformed

mapping - a map for holding the inverted field mapping

Returns:

the resulting record type

getMappings

List<String> getMappings(String name)

Gets the fields in the target to which the specified source field is mapped.

Parameters:

name - the name of a field in the source record

Returns:

the names of fields in the target which correspond to the field. If the field is not mapped to the target, an empty list is returned.