Package it.bancaditalia.oss.vtl.session

Interface MetadataRepository

All Known Implementing Classes:

CSVMetadataRepository, InMemoryMetadataRepository, SDMXMetadataRepository

public interface MetadataRepository

A repository to contain and query all the defined domains.

Author:

Valentino Pinna

Method Summary

Modifier and Type	Method	Description
default <S extends ValueDomainSubset<S,D>,D extends ValueDomain> S	defineDomain(String name, Class<S> domainClass, Object param)	Creates a new domain instance and registers it inside this repository (optional operation).
ValueDomainSubset<?,?>	getDomain(String name)	Returns a domain with the specified name if it exists.
Collection<ValueDomainSubset<?,?>>	getValueDomains()
default MetadataRepository	init(Object... params)	Initialize this MetadataRepository.
boolean	isDomainDefined(String name)	Checks if a ValueDomainSubset with the specified name exists.
default <S extends ValueDomainSubset<S,D>,D extends ValueDomain> S	registerDomain(String name, S domain)	Registers a new domain instance inside this repository (optional operation).

Method Detail

getValueDomains

Collection<ValueDomainSubset<?,?>> getValueDomains()

Returns:

a collection of all ValueDomainSubsets defined in this MetadataRepository.

isDomainDefined

boolean isDomainDefined(String name)

Checks if a ValueDomainSubset with the specified name exists.

Parameters:

name - the name of the domain to check

Returns:

true if a domain exists.

getDomain

ValueDomainSubset<?,?> getDomain(String name)

Returns a domain with the specified name if it exists.

Parameters:

name - the name of the domain

Returns:

the domain or null if none exists.

registerDomain

default <S extends ValueDomainSubset<S,D>,D extends ValueDomain> S registerDomain(String name,
                                                                                              S domain)

Registers a new domain instance inside this repository (optional operation).

Type Parameters:

S - the type of the domain

Parameters:

name - the name of the new domain

domain - the domain instance

Returns:

the same domain instance.

defineDomain

default <S extends ValueDomainSubset<S,D>,D extends ValueDomain> S defineDomain(String name,
                                                                                            Class<S> domainClass,
                                                                                            Object param)

Creates a new domain instance and registers it inside this repository (optional operation).

Type Parameters:

S - the type of the domain

Parameters:

name - the name of the new domain

domainClass - the class of the domain

param - optional parameters to pass to the domain class constructor

Returns:

the created domain instance.

init

default MetadataRepository init(Object... params)

Initialize this MetadataRepository. This method should be always called once per instance, before attempting any other operation.

Parameters:

params - optional initialization parameters

Returns:

this instance