Uses of Class
com.pervasive.datarush.operators.record.FieldDerivation

Packages that use FieldDerivation

Package	Description
com.pervasive.datarush.operators.io.vectorwise
com.pervasive.datarush.operators.record	Provides operators for manipulating record structure.

Uses of FieldDerivation in com.pervasive.datarush.operators.io.vectorwise

Methods in com.pervasive.datarush.operators.io.vectorwise that return types with arguments of type FieldDerivation

Modifier and Type	Method	Description
static List<FieldDerivation>	Vectorwise.createTextFields(RecordTokenType inputType, List<String> fieldsToInclude)

Uses of FieldDerivation in com.pervasive.datarush.operators.record

Methods in com.pervasive.datarush.operators.record that return FieldDerivation

Modifier and Type	Method	Description
static FieldDerivation	FieldDerivation.apply(ScalarTokenType fieldType, ScalarValuedFunction f, String variableName)	Applies a function to each input field matching the specified type criteria.
static FieldDerivation	FieldDerivation.apply(ScalarTokenType fieldType, String expression, String variableName)	Applies an expression to each input field matching the specified type criteria.
static FieldDerivation	FieldDerivation.derive(String name, ScalarValuedFunction f)	Defines a derivation of the named field using the specified function.
static FieldDerivation	FieldDerivation.derive(String name, String expression)	Defines a derivation of the named field using the specified expression.
static FieldDerivation	FieldDerivation.id(String name)	Defines an identity mapping for the specified field.
abstract FieldDerivation	FieldDerivation.mapFieldsToFunctions(Map<String,ScalarValuedFunction> mapping)	Creates a new field derivation, equivalent to the given derivation, but with specified field references mapped to functions.

Methods in com.pervasive.datarush.operators.record that return types with arguments of type FieldDerivation

Modifier and Type	Method	Description
List<FieldDerivation>	DeriveFields.getDerivedFields()	Get the list of derivations that will be applied.

Methods in com.pervasive.datarush.operators.record with parameters of type FieldDerivation

Modifier and Type	Method	Description
void	DeriveFields.setDerivedFields(FieldDerivation... derivations)	Set the list of field derivations to apply.

Method parameters in com.pervasive.datarush.operators.record with type arguments of type FieldDerivation

Modifier and Type	Method	Description
void	DeriveFields.setDerivedFields(List<FieldDerivation> derivations)	Set the list of field derivations to apply.

Constructors in com.pervasive.datarush.operators.record with parameters of type FieldDerivation

Constructor	Description
DeriveFields(FieldDerivation... derivations)	Applies the specified derivations to all input records.

Constructor parameters in com.pervasive.datarush.operators.record with type arguments of type FieldDerivation

Constructor	Description
DeriveFields(List<FieldDerivation> derivations)	Applies the specified derivations to all input records.
DeriveFields(List<FieldDerivation> derivations, boolean dropUnderived)	Applies the specified derivations to all input records.