Module org.iogp.gigs

Package org.iogp.gigs

Class Factories

Object

Factories

public class Factories
extends Object

A container for various factory implementations. This is used as a replacement for long list of arguments in constructors when a test may require many factories for different kinds of objects (datum, coordinate system, operations, etc).

Implementations can create a Factories subclass and initialize all fields in their constructor.

Since:

1.0

Field Summary

Fields

Modifier and Type	Field	Description
protected CoordinateOperationAuthorityFactory	copAuthorityFactory	Factory to use for building CoordinateOperation instances from authority codes, or null if none.
protected CoordinateOperationFactory	copFactory	Factory to use for building CoordinateOperation instances, or null if none.
protected CRSAuthorityFactory	crsAuthorityFactory	Factory to use for building CoordinateReferenceSystem instances from authority codes, or null if none.
protected CRSFactory	crsFactory	Factory to use for building CoordinateReferenceSystem instances, or null if none.
protected CSAuthorityFactory	csAuthorityFactory	The factory to use for creating coordinate system instances from authority codes, or null if none.
protected CSFactory	csFactory	The factory to use for creating coordinate system instances, or null if none.
protected DatumAuthorityFactory	datumAuthorityFactory	Factory to use for building Datum instances from authority codes, or null if none.
protected DatumFactory	datumFactory	Factory to use for building Datum instances, or null if none.
protected MathTransformFactory	mtFactory	The factory to use for fetching operation methods and building MathTransform instances, or null if none.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Factories()	Creates an initially empty set of factories.

Method Summary

Modifier and Type	Method	Description
final <T> Optional<T>	get(Class<T> type)	Returns the factory to test for the specified type.
static boolean	isSupported(Class<?> type)	Returns true if the given type is supported by the get(…) method.

Methods inherited from class Object

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

Field Details

crsAuthorityFactory

protected CRSAuthorityFactory crsAuthorityFactory

Factory to use for building CoordinateReferenceSystem instances from authority codes, or null if none.

crsFactory

protected CRSFactory crsFactory

Factory to use for building CoordinateReferenceSystem instances, or null if none.

csAuthorityFactory

protected CSAuthorityFactory csAuthorityFactory

The factory to use for creating coordinate system instances from authority codes, or null if none. May also be used for fetching Unit instances.

csFactory

protected CSFactory csFactory

The factory to use for creating coordinate system instances, or null if none.

datumAuthorityFactory

protected DatumAuthorityFactory datumAuthorityFactory

Factory to use for building Datum instances from authority codes, or null if none. May also be used for building Ellipsoid and PrimeMeridian components.

datumFactory

protected DatumFactory datumFactory

Factory to use for building Datum instances, or null if none. May also be used for building Ellipsoid and PrimeMeridian components.

copAuthorityFactory

protected CoordinateOperationAuthorityFactory copAuthorityFactory

Factory to use for building CoordinateOperation instances from authority codes, or null if none.

copFactory

protected CoordinateOperationFactory copFactory

Factory to use for building CoordinateOperation instances, or null if none.

mtFactory

protected MathTransformFactory mtFactory

The factory to use for fetching operation methods and building MathTransform instances, or null if none.

Constructor Details

Factories

protected Factories()

Creates an initially empty set of factories.

Method Details

get

public final <T> Optional<T> get(Class<T> type)

Returns the factory to test for the specified type. This method returns the value of one of the type defined in this class. The field is identified by the value type. For example get(CRSFactory.class) returns crsFactory.

Type Parameters:

T - compile-time value of the type argument.

Parameters:

type - GeoAPI interface of the desired factory.

Returns:

factory for the specified interface.

isSupported

public static boolean isSupported(Class<?> type)

Returns true if the given type is supported by the get(…) method. Note that a true value does not guarantee that get(type) will return a non-empty value, because the type may be supported with no value has been specified.

Parameters:

type - GeoAPI interface of a factory.

Returns:

whether the given type is supported.