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

Class ParamScope

java.lang.Object

it.bancaditalia.oss.vtl.impl.transform.scope.ParamScope

All Implemented Interfaces:

TransformationScheme

public class ParamScope
extends Object
implements TransformationScheme

Constructor Summary

Constructors

Constructor	Description
ParamScope(TransformationScheme parent, Map<String,Transformation> params)

Method Summary

Modifier and Type	Method	Description
boolean	contains(String alias)	Determine if an alias is defined in this TransformationScheme.
VTLValueMetadata	getMetadata(String alias)	Searches and retrieves metadata for value, referred by an alias defined in this TransformationScheme.
TransformationScheme	getParent()	Checks if this transformation scheme is nested inside another one and return it.
MetadataRepository	getRepository()
Statement	getRule(String node)	Returns a structure a rule referred by an alias defined in this TransformationScheme.
Optional<Lineage>	linkLineage(String alias)	Tries to resolve a lineage link specified by a given alias for a VTL rule defined in this scheme.
VTLValue	resolve(String node)	Searches and retrieves a value, referred by an alias defined in this TransformationScheme.

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.bancaditalia.oss.vtl.model.transform.TransformationScheme

eval, resolve

Constructor Detail

ParamScope

public ParamScope(TransformationScheme parent,
                  Map<String,Transformation> params)

Method Detail

resolve

public VTLValue resolve(String node)

Description copied from interface: TransformationScheme

Searches and retrieves a value, referred by an alias defined in this TransformationScheme.

Specified by:

resolve in interface TransformationScheme

Parameters:

node - The alias whose value is to be retrieved.

Returns:

The VTLValue if the alias is found.

getMetadata

public VTLValueMetadata getMetadata(String alias)

Description copied from interface: TransformationScheme

Searches and retrieves metadata for value, referred by an alias defined in this TransformationScheme.

Specified by:

getMetadata in interface TransformationScheme

Parameters:

alias - the alias whose value is to be retrieved.

Returns:

the metadata of the value if the alias is found.

getRule

public Statement getRule(String node)

Description copied from interface: TransformationScheme

Returns a structure a rule referred by an alias defined in this TransformationScheme.

Specified by:

getRule in interface TransformationScheme

Parameters:

node - the alias of the rule whose structure is to be retrieved.

Returns:

a Statement instance describing the rule if found.

getRepository

public MetadataRepository getRepository()

Specified by:

getRepository in interface TransformationScheme

Returns:

The MetadataRepository instance used by this TransformationScheme.

getParent

public TransformationScheme getParent()

Description copied from interface: TransformationScheme

Checks if this transformation scheme is nested inside another one and return it.

Specified by:

getParent in interface TransformationScheme

Returns:

The TransformationScheme encompassing this one, if any.

contains

public boolean contains(String alias)

Description copied from interface: TransformationScheme

Determine if an alias is defined in this TransformationScheme.

Specified by:

contains in interface TransformationScheme

Parameters:

alias - the alias whose value is to be retrieved.

Returns:

whether the alias is defined or not.

linkLineage

public Optional<Lineage> linkLineage(String alias)

Description copied from interface: TransformationScheme

Tries to resolve a lineage link specified by a given alias for a VTL rule defined in this scheme.

Specified by:

linkLineage in interface TransformationScheme

Parameters:

alias - The alias referring to a rule

Returns:

The lineage link