Package it.bancaditalia.oss.vtl.impl.transform.dataset

Class KeepClauseTransformation

java.lang.Object

it.bancaditalia.oss.vtl.impl.transform.TransformationImpl

it.bancaditalia.oss.vtl.impl.transform.dataset.DatasetClauseTransformation

it.bancaditalia.oss.vtl.impl.transform.dataset.KeepClauseTransformation

All Implemented Interfaces:

Transformation, Serializable

public class KeepClauseTransformation
extends DatasetClauseTransformation

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
KeepClauseTransformation(List<String> names)

Method Summary

Modifier and Type	Method	Description
protected Lineage	computeLineage()
VTLValueMetadata	computeMetadata(TransformationScheme scheme)
boolean	equals(Object obj)
VTLValue	eval(TransformationScheme scheme)	Evaluates this transformation in the context of the given TransformationScheme.
DataSetMetadata	getMetadata(TransformationScheme scheme)	Checks and returns the metadata of this Transformation within the given TransformationScheme.
int	hashCode()
String	toString()

Methods inherited from class it.bancaditalia.oss.vtl.impl.transform.dataset.DatasetClauseTransformation

getTerminals, getThisMetadata, getThisValue, isTerminal

Methods inherited from class it.bancaditalia.oss.vtl.impl.transform.TransformationImpl

getLineage

Methods inherited from class java.lang.Object

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

Constructor Detail

KeepClauseTransformation

public KeepClauseTransformation(List<String> names)

Method Detail

eval

public VTLValue eval(TransformationScheme scheme)

Description copied from interface: Transformation

Evaluates this transformation in the context of the given TransformationScheme.

Parameters:

scheme - the transformation scheme

Returns:

the result of the computation of this Transformation.

getMetadata

public DataSetMetadata getMetadata(TransformationScheme scheme)

Description copied from interface: Transformation

Checks and returns the metadata of this Transformation within the given TransformationScheme.

Parameters:

scheme - the transformation scheme

Returns:

the metadata of this Transformation.

computeMetadata

public VTLValueMetadata computeMetadata(TransformationScheme scheme)

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Transformation

Specified by:

hashCode in class DatasetClauseTransformation

equals

public boolean equals(Object obj)

Specified by:

equals in interface Transformation

Specified by:

equals in class DatasetClauseTransformation

computeLineage

protected Lineage computeLineage()

Specified by:

computeLineage in class TransformationImpl