AbstractAuthorityMediator (Geotools modules 21.0 API)

Object
- AbstractFactory
- - ReferencingFactory
  - - AbstractAuthorityFactory
    - - AbstractAuthorityMediator

All Implemented Interfaces:

BufferedFactory, Factory, RegistrableFactory, AuthorityFactory, CRSAuthorityFactory, CSAuthorityFactory, DatumAuthorityFactory, CoordinateOperationAuthorityFactory

Direct Known Subclasses:

AbstractEpsgMediator
```
public abstract class AbstractAuthorityMediator
extends AbstractAuthorityFactory
implements AuthorityFactory, CRSAuthorityFactory, CSAuthorityFactory, DatumAuthorityFactory, CoordinateOperationAuthorityFactory, BufferedFactory
```
An authority mediator that consults (a possibily shared) cache before delegating the generation of the content to a "worker" authority factory. The behaviour of the createFoo(String) methods first looks if a previously created object exists for the given code. If such an object exists, it is returned directly. The testing of the cache is synchronized and may block if the referencing object is under construction.
If the object is not yet created, the definition is delegated to the appropriate createFoo method of the factory, which will cache the result for next time.
This object is responsible for maintaining an {{ObjectCache}} of "workers" based on the following:
- Hints.AUTHORITY_MAX_ACTIVE (default 2) - indicates the maximum number of worker created, if non positive the number of workers is unbounded.
- Hints.
Since:

2.4

Author:

Jody Garnett (Refractions Research), Cory Horner (Refractions Research)

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

protected class AbstractAuthorityMediator.WorkerSafeRunnable
An interface describing a portion of work for which a worker is needed.

Nested Classes
Modifier and Type	Class and Description
`protected class`	`AbstractAuthorityMediator.WorkerSafeRunnable` An interface describing a portion of work for which a worker is needed.

Field Summary

Fields
Modifier and Type Field and Description

protected ReferencingFactoryContainer factories
A container of the "real factories" actually used to construct objects.
- Fields inherited from class ReferencingFactory
  LOGGER
- Fields inherited from class AbstractFactory
  hints, MAXIMUM_PRIORITY, MINIMUM_PRIORITY, NORMAL_PRIORITY, priority

Fields
Modifier and Type	Field and Description
`protected ReferencingFactoryContainer`	`factories` A container of the "real factories" actually used to construct objects.

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`AbstractAuthorityMediator()` Constructs an instance making use of the default cache and priority level.
`protected`	`AbstractAuthorityMediator(Hints hints)` Constructs an instance based on the provided Hints
`protected`	`AbstractAuthorityMediator(int priority)` Constructs an instance making use of the default cache.
`protected`	`AbstractAuthorityMediator(int priority, Hints hints)` Constructs an instance making use of the default cache.
`protected`	`AbstractAuthorityMediator(int priority, ObjectCache cache, ReferencingFactoryContainer container)` Constructs an instance making use of the indicated cache.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`protected abstract void`	`activateWorker(AbstractCachedAuthorityFactory worker)` Reinitialize an instance to be returned by the pool.
`protected void`	`completeHints()`
`CartesianCS`	`createCartesianCS(String code)` Creates a cartesian coordinate system from a code.
`CompoundCRS`	`createCompoundCRS(String code)` Creates a 3D coordinate reference system from a code.
`CoordinateOperation`	`createCoordinateOperation(String code)` Creates an operation from a single operation code.
`CoordinateReferenceSystem`	`createCoordinateReferenceSystem(String code)` Returns an arbitrary coordinate reference system from a code.
`CoordinateSystem`	`createCoordinateSystem(String code)` Returns an arbitrary coordinate system from a code.
`CoordinateSystemAxis`	`createCoordinateSystemAxis(String code)` Returns a coordinate system axis from a code.
`CylindricalCS`	`createCylindricalCS(String code)` Creates a cylindrical coordinate system from a code.
`Datum`	`createDatum(String code)` Returns an arbitrary datum from a code.
`DerivedCRS`	`createDerivedCRS(String code)` Creates a derived coordinate reference system from a code.
`Ellipsoid`	`createEllipsoid(String code)` Returns an ellipsoid from a code.
`EllipsoidalCS`	`createEllipsoidalCS(String code)` Creates an ellipsoidal coordinate system from a code.
`EngineeringDatum`	`createEngineeringDatum(String code)` Creates a engineering datum from a code.
`Set`	`createFromCoordinateReferenceSystemCodes(String sourceCode, String targetCode)` Creates an operation from coordinate reference system codes.
`GeocentricCRS`	`createGeocentricCRS(String code)` Returns a geocentric coordinate reference system from a code.
`GeodeticDatum`	`createGeodeticDatum(String code)` Returns a geodetic datum from a code.
`GeographicCRS`	`createGeographicCRS(String code)` Returns a geographic coordinate reference system from a code.
`ImageCRS`	`createImageCRS(String code)` Creates a image coordinate reference system from a code.
`ImageDatum`	`createImageDatum(String code)` Creates a image datum from a code.
`IdentifiedObject`	`createObject(String code)` Returns an arbitrary object from a code.
`PolarCS`	`createPolarCS(String code)` Creates a polar coordinate system from a code.
`PrimeMeridian`	`createPrimeMeridian(String code)` Returns a prime meridian from a code.
`ProjectedCRS`	`createProjectedCRS(String code)` Returns a projected coordinate reference system from a code.
`SphericalCS`	`createSphericalCS(String code)` Creates a spherical coordinate system from a code.
`TemporalCRS`	`createTemporalCRS(String code)` Creates a temporal coordinate reference system from a code.
`TemporalDatum`	`createTemporalDatum(String code)` Creates a temporal datum from a code.
`TimeCS`	`createTimeCS(String code)` Creates a temporal coordinate system from a code.
`Unit<?>`	`createUnit(String code)` Returns an unit from a code.
`VerticalCRS`	`createVerticalCRS(String code)` Creates a vertical coordinate reference system from a code.
`VerticalCS`	`createVerticalCS(String code)` Creates a vertical coordinate system from a code.
`VerticalDatum`	`createVerticalDatum(String code)` Creates a vertical datum from a code.
`protected <T> T`	`createWith(Object key, AbstractAuthorityMediator.WorkerSafeRunnable runner)` This method is used to cut down the amount of try/catch/finally code needed when working with the cache and workers.
`protected abstract void`	`destroyWorker(AbstractCachedAuthorityFactory worker)` Destroys an instance no longer needed by the pool.
`void`	`dispose()` Clean up the object pool of workers (since we are shutting down).
`abstract Citation`	`getAuthority()` The authority body of the objects this factory provides.
`Set`	`getAuthorityCodes(Class type)` Returns the set of authority codes of the given type.
`String`	`getBackingStoreDescription()` Returns a description of the underlying backing store, or `null` if unknown.
`abstract InternationalString`	`getDescriptionText(String code)` Gets a description of the object corresponding to a code.
`IdentifiedObjectFinder`	`getIdentifiedObjectFinder(Class type)` Returns a finder which can be used for looking up unidentified objects.
`boolean`	`isConnected()` True if this mediator is currently connected to one or more workers.
`protected abstract AbstractCachedAuthorityFactory`	`makeWorker()` Creates an instance that can be returned by the pool.
`protected abstract void`	`passivateWorker(AbstractCachedAuthorityFactory worker)` Un-initialize an instance to be returned to the pool.
`protected String`	`toKey(String code)`
`protected String`	`trimAuthority(String code)` Trims the authority scope, if present.
`protected abstract boolean`	`validateWorker(AbstractCachedAuthorityFactory worker)` Ensures that the instance is safe to be returned by the pool.

Methods inherited from class AbstractAuthorityFactory
createEngineeringCRS, createExtent, createOperationMethod, createParameterDescriptor, noSuchAuthorityCode

Methods inherited from class ReferencingFactory
ensureNonNull, getVendor

Methods inherited from class AbstractFactory
addImplementationHints, equals, getImplementationHints, getPriority, hashCode, onDeregistration, onRegistration, toString

Methods inherited from class Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface CRSAuthorityFactory
createEngineeringCRS

Methods inherited from interface Factory
getVendor

Methods inherited from interface Factory
getImplementationHints

- Field Detail
  - factories
```
protected final ReferencingFactoryContainer factories
```
    A container of the "real factories" actually used to construct objects.
- Constructor Detail
  - AbstractAuthorityMediator
```
protected AbstractAuthorityMediator()
```
    Constructs an instance making use of the default cache and priority level.
  - AbstractAuthorityMediator
```
protected AbstractAuthorityMediator(Hints hints)
```
    Constructs an instance based on the provided Hints
    
    Parameters:
    
    factory - The factory to cache. Can not be null.
  - AbstractAuthorityMediator
```
protected AbstractAuthorityMediator(int priority)
```
    Constructs an instance making use of the default cache.
    
    Parameters:
    
    factory - The factory to cache. Can not be null.
  - AbstractAuthorityMediator
```
protected AbstractAuthorityMediator(int priority,
                                    Hints hints)
```
    Constructs an instance making use of the default cache.
    
    Parameters:
    
    factory - The factory to cache. Can not be null.
  - AbstractAuthorityMediator
```
protected AbstractAuthorityMediator(int priority,
                                    ObjectCache cache,
                                    ReferencingFactoryContainer container)
```
    Constructs an instance making use of the indicated cache.
    This constructor is protected because subclasses must declare which of the DatumAuthorityFactory, CSAuthorityFactory, CRSAuthorityFactory and CoordinateOperationAuthorityFactory interfaces they choose to implement.
    
    Parameters:
    
    factory - The factory to cache. Can not be null.
    
    maxStrongReferences - The maximum number of objects to keep by strong reference.
- Method Detail
  - completeHints
```
protected void completeHints()
```
  - isConnected
```
public boolean isConnected()
```
    True if this mediator is currently connected to one or more workers.
    
    Returns:
  - toKey
```
protected String toKey(String code)
```
  - trimAuthority
```
protected String trimAuthority(String code)
```
    Trims the authority scope, if present. For example if this factory is an EPSG authority factory and the specified code start with the "EPSG:" prefix, then the prefix is removed. Otherwise, the string is returned unchanged (except for leading and trailing spaces).
    
    Overrides:
    
    trimAuthority in class AbstractAuthorityFactory
    
    Parameters:
    
    code - The code to trim.
    
    Returns:
    
    The code without the authority scope.
  - getAuthority
```
public abstract Citation getAuthority()
```
    The authority body of the objects this factory provides.
    
    Specified by:
    
    getAuthority in interface AuthorityFactory
    
    Specified by:
    
    getAuthority in class AbstractAuthorityFactory
    
    Returns:
    
    The organization reponsible for definition of the database.
  - getAuthorityCodes
```
public Set getAuthorityCodes(Class type)
                      throws FactoryException
```
    Description copied from interface: AuthorityFactory
    Returns the set of authority codes of the given type. The type argument specify the base class. For example if this factory is an instance of CRSAuthorityFactory, then:
    - CoordinateReferenceSystem.class asks for all authority codes accepted by one of createGeographicCRS, createProjectedCRS, createVerticalCRS, createTemporalCRS and their friends.
    - ProjectedCRS.class asks only for authority codes accepted by createProjectedCRS.
    Specified by:
    
    getAuthorityCodes in interface AuthorityFactory
    
    Parameters:
    
    type - The spatial reference objects type.
    
    Returns:
    
    The set of authority codes for spatial reference objects of the given type. If this factory doesn't contains any object of the given type, then this method returns an empty set.
    
    Throws:
    
    FactoryException - if access to the underlying database failed.
  - getDescriptionText
```
public abstract InternationalString getDescriptionText(String code)
                                                throws FactoryException
```
    Description copied from interface: AuthorityFactory
    
    Gets a description of the object corresponding to a code.
    
    Specified by:
    
    getDescriptionText in interface AuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    A description of the object, or null if the object corresponding to the specified code has no description.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the query failed for some other reason.
  - createObject
```
public IdentifiedObject createObject(String code)
                              throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns an arbitrary object from a code. The returned object will typically be an instance of Datum, CoordinateSystem, CoordinateReferenceSystem or CoordinateOperation. The default implementation always throw an exception. Subclasses should override this method if they are capable to automatically detect the object type from its code.
    
    Specified by:
    
    createObject in interface AuthorityFactory
    
    Overrides:
    
    createObject in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The object for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createCoordinateReferenceSystem(java.lang.String), AbstractAuthorityFactory.createDatum(java.lang.String), AbstractAuthorityFactory.createEllipsoid(java.lang.String), AbstractAuthorityFactory.createUnit(java.lang.String)
  - createCompoundCRS
```
public CompoundCRS createCompoundCRS(String code)
                              throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a 3D coordinate reference system from a code.
    
    Specified by:
    
    createCompoundCRS in interface CRSAuthorityFactory
    
    Overrides:
    
    createCompoundCRS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createCoordinateReferenceSystem
```
public CoordinateReferenceSystem createCoordinateReferenceSystem(String code)
                                                          throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns an arbitrary coordinate reference system from a code. If the coordinate reference system type is know at compile time, it is recommended to invoke the most precise method instead of this one (for example createGeographicCRS(code) instead of createCoordinateReferenceSystem(code) if the caller know he is asking for a geographic coordinate reference system).
    
    Specified by:
    
    createCoordinateReferenceSystem in interface CRSAuthorityFactory
    
    Overrides:
    
    createCoordinateReferenceSystem in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createGeographicCRS(java.lang.String), AbstractAuthorityFactory.createProjectedCRS(java.lang.String), AbstractAuthorityFactory.createVerticalCRS(java.lang.String), AbstractAuthorityFactory.createTemporalCRS(java.lang.String), AbstractAuthorityFactory.createCompoundCRS(java.lang.String)
  - createDerivedCRS
```
public DerivedCRS createDerivedCRS(String code)
                            throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a derived coordinate reference system from a code.
    
    Specified by:
    
    createDerivedCRS in interface CRSAuthorityFactory
    
    Overrides:
    
    createDerivedCRS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createGeocentricCRS
```
public GeocentricCRS createGeocentricCRS(String code)
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns a geocentric coordinate reference system from a code.
    
    Specified by:
    
    createGeocentricCRS in interface CRSAuthorityFactory
    
    Overrides:
    
    createGeocentricCRS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed.
    
    See Also:
    
    AbstractAuthorityFactory.createGeodeticDatum(java.lang.String)
  - createGeographicCRS
```
public GeographicCRS createGeographicCRS(String code)
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns a geographic coordinate reference system from a code.
    
    Specified by:
    
    createGeographicCRS in interface CRSAuthorityFactory
    
    Overrides:
    
    createGeographicCRS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createGeodeticDatum(java.lang.String)
  - createImageCRS
```
public ImageCRS createImageCRS(String code)
                        throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a image coordinate reference system from a code.
    
    Specified by:
    
    createImageCRS in interface CRSAuthorityFactory
    
    Overrides:
    
    createImageCRS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createProjectedCRS
```
public ProjectedCRS createProjectedCRS(String code)
                                throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns a projected coordinate reference system from a code.
    
    Specified by:
    
    createProjectedCRS in interface CRSAuthorityFactory
    
    Overrides:
    
    createProjectedCRS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createGeodeticDatum(java.lang.String)
  - createTemporalCRS
```
public TemporalCRS createTemporalCRS(String code)
                              throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a temporal coordinate reference system from a code.
    
    Specified by:
    
    createTemporalCRS in interface CRSAuthorityFactory
    
    Overrides:
    
    createTemporalCRS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createTemporalDatum(java.lang.String)
  - createVerticalCRS
```
public VerticalCRS createVerticalCRS(String code)
                              throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a vertical coordinate reference system from a code.
    
    Specified by:
    
    createVerticalCRS in interface CRSAuthorityFactory
    
    Overrides:
    
    createVerticalCRS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate reference system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createVerticalDatum(java.lang.String)
  - createCartesianCS
```
public CartesianCS createCartesianCS(String code)
                              throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a cartesian coordinate system from a code. The default implementation invokes createCoordinateSystem(code).
    
    Specified by:
    
    createCartesianCS in interface CSAuthorityFactory
    
    Overrides:
    
    createCartesianCS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createCoordinateSystem
```
public CoordinateSystem createCoordinateSystem(String code)
                                        throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns an arbitrary coordinate system from a code. The default implementation invokes createObject(code).
    
    Specified by:
    
    createCoordinateSystem in interface CSAuthorityFactory
    
    Overrides:
    
    createCoordinateSystem in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createCoordinateSystemAxis
```
public CoordinateSystemAxis createCoordinateSystemAxis(String code)
                                                throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns a coordinate system axis from a code. The default implementation invokes createObject(code).
    
    Specified by:
    
    createCoordinateSystemAxis in interface CSAuthorityFactory
    
    Overrides:
    
    createCoordinateSystemAxis in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The axis for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createCylindricalCS
```
public CylindricalCS createCylindricalCS(String code)
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a cylindrical coordinate system from a code. The default implementation invokes createCoordinateSystem(code).
    
    Specified by:
    
    createCylindricalCS in interface CSAuthorityFactory
    
    Overrides:
    
    createCylindricalCS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createEllipsoidalCS
```
public EllipsoidalCS createEllipsoidalCS(String code)
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates an ellipsoidal coordinate system from a code. The default implementation invokes createCoordinateSystem(code).
    
    Specified by:
    
    createEllipsoidalCS in interface CSAuthorityFactory
    
    Overrides:
    
    createEllipsoidalCS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createPolarCS
```
public PolarCS createPolarCS(String code)
                      throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a polar coordinate system from a code. The default implementation invokes createCoordinateSystem(code).
    
    Specified by:
    
    createPolarCS in interface CSAuthorityFactory
    
    Overrides:
    
    createPolarCS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createSphericalCS
```
public SphericalCS createSphericalCS(String code)
                              throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a spherical coordinate system from a code. The default implementation invokes createCoordinateSystem(code).
    
    Specified by:
    
    createSphericalCS in interface CSAuthorityFactory
    
    Overrides:
    
    createSphericalCS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createTimeCS
```
public TimeCS createTimeCS(String code)
                    throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a temporal coordinate system from a code. The default implementation invokes createCoordinateSystem(code).
    
    Specified by:
    
    createTimeCS in interface CSAuthorityFactory
    
    Overrides:
    
    createTimeCS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createUnit
```
public Unit<?> createUnit(String code)
                   throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns an unit from a code. The default implementation invokes createObject(code).
    
    Specified by:
    
    createUnit in interface CSAuthorityFactory
    
    Overrides:
    
    createUnit in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The unit for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createVerticalCS
```
public VerticalCS createVerticalCS(String code)
                            throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a vertical coordinate system from a code. The default implementation invokes createCoordinateSystem(code).
    
    Specified by:
    
    createVerticalCS in interface CSAuthorityFactory
    
    Overrides:
    
    createVerticalCS in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The coordinate system for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createDatum
```
public Datum createDatum(String code)
                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns an arbitrary datum from a code. The default implementation invokes createObject(code).
    
    Specified by:
    
    createDatum in interface DatumAuthorityFactory
    
    Overrides:
    
    createDatum in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The datum for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createGeodeticDatum(java.lang.String), AbstractAuthorityFactory.createVerticalDatum(java.lang.String), AbstractAuthorityFactory.createTemporalDatum(java.lang.String)
  - createEllipsoid
```
public Ellipsoid createEllipsoid(String code)
                          throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns an ellipsoid from a code. The default implementation invokes createObject(code).
    
    Specified by:
    
    createEllipsoid in interface DatumAuthorityFactory
    
    Overrides:
    
    createEllipsoid in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The ellipsoid for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createGeodeticDatum(java.lang.String)
  - createEngineeringDatum
```
public EngineeringDatum createEngineeringDatum(String code)
                                        throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a engineering datum from a code. The default implementation invokes createDatum(code).
    
    Specified by:
    
    createEngineeringDatum in interface DatumAuthorityFactory
    
    Overrides:
    
    createEngineeringDatum in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The datum for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createEngineeringCRS(java.lang.String)
  - createGeodeticDatum
```
public GeodeticDatum createGeodeticDatum(String code)
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns a geodetic datum from a code. The default implementation invokes createDatum(code).
    
    Specified by:
    
    createGeodeticDatum in interface DatumAuthorityFactory
    
    Overrides:
    
    createGeodeticDatum in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The datum for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createEllipsoid(java.lang.String), AbstractAuthorityFactory.createPrimeMeridian(java.lang.String), AbstractAuthorityFactory.createGeographicCRS(java.lang.String), AbstractAuthorityFactory.createProjectedCRS(java.lang.String)
  - createImageDatum
```
public ImageDatum createImageDatum(String code)
                            throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a image datum from a code. The default implementation invokes createDatum(code).
    
    Specified by:
    
    createImageDatum in interface DatumAuthorityFactory
    
    Overrides:
    
    createImageDatum in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The datum for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createImageCRS(java.lang.String)
  - createPrimeMeridian
```
public PrimeMeridian createPrimeMeridian(String code)
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns a prime meridian from a code. The default implementation invokes createObject(code).
    
    Specified by:
    
    createPrimeMeridian in interface DatumAuthorityFactory
    
    Overrides:
    
    createPrimeMeridian in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The prime meridian for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createGeodeticDatum(java.lang.String)
  - createTemporalDatum
```
public TemporalDatum createTemporalDatum(String code)
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a temporal datum from a code. The default implementation invokes createDatum(code).
    
    Specified by:
    
    createTemporalDatum in interface DatumAuthorityFactory
    
    Overrides:
    
    createTemporalDatum in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The datum for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createTemporalCRS(java.lang.String)
  - createVerticalDatum
```
public VerticalDatum createVerticalDatum(String code)
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates a vertical datum from a code. The default implementation invokes createDatum(code).
    
    Specified by:
    
    createVerticalDatum in interface DatumAuthorityFactory
    
    Overrides:
    
    createVerticalDatum in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The datum for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
    
    See Also:
    
    AbstractAuthorityFactory.createVerticalCRS(java.lang.String)
  - createCoordinateOperation
```
public CoordinateOperation createCoordinateOperation(String code)
                                              throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates an operation from a single operation code.
    
    Specified by:
    
    createCoordinateOperation in interface CoordinateOperationAuthorityFactory
    
    Overrides:
    
    createCoordinateOperation in class AbstractAuthorityFactory
    
    Parameters:
    
    code - Value allocated by authority.
    
    Returns:
    
    The operation for the given code.
    
    Throws:
    
    NoSuchAuthorityCodeException - if the specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createFromCoordinateReferenceSystemCodes
```
public Set createFromCoordinateReferenceSystemCodes(String sourceCode,
                                                    String targetCode)
                                             throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Creates an operation from coordinate reference system codes. The default implementation returns an empty set. We do not delegate to some kind of coordinate operation factory method because the usual contract for this method is to extract the information from an authority database like EPSG, not to compute operations on-the-fly.
    Rational: Coordinate operation factory backed by an authority will invoke this method. If this method invoked the coordinate operation factory in turn, the application could be trapped in infinite recursive calls.
    
    Specified by:
    
    createFromCoordinateReferenceSystemCodes in interface CoordinateOperationAuthorityFactory
    
    Overrides:
    
    createFromCoordinateReferenceSystemCodes in class AbstractAuthorityFactory
    
    Parameters:
    
    sourceCode - Coded value of source coordinate reference system.
    
    targetCode - Coded value of target coordinate reference system.
    
    Returns:
    
    The operations from sourceCRS to targetCRS.
    
    Throws:
    
    NoSuchAuthorityCodeException - if a specified code was not found.
    
    FactoryException - if the object creation failed for some other reason.
  - createWith
```
protected <T> T createWith(Object key,
                           AbstractAuthorityMediator.WorkerSafeRunnable runner)
                    throws FactoryException
```
    This method is used to cut down the amount of try/catch/finally code needed when working with the cache and workers.
    This code brings together two try/catch/finally blocks.
    For cache management:
```
  T value = (T) cache.get(key);
  if (value == null) {
      try {
          cache.writeLock(key);
          value = (T) cache.peek(key);
          if (value == null) {
                ....generate value....
              cache.put( key, value );
          }
      } finally {
          cache.writeUnLock(key);
      }
  }
 
```
    And worker management when generating values:
```
 AbstractCachedAuthorityFactory worker = null;
 try {
  worker = (AbstractCachedAuthorityFactory) getPool().borrowObject();
  value = (T) runner.run( worker );
 } catch (FactoryException e) {
     throw e;
 } catch (Exception e) {
     throw new FactoryException(e);
 } finally {
     try {
         getPool().returnObject(worker);
     } catch (Exception e) {
         LOGGER.log(Level.WARNING, "Unable to return worker " + e, e);
     }
 }
 
```
    Parameters:
    
    key - Used to look in the cache
    
    runner - Used to generate a value in the case of a cache miss
    
    Returns:
    
    value from either the cache or generated
    
    Throws:
    
    FactoryException
  - getBackingStoreDescription
```
public String getBackingStoreDescription()
                                  throws FactoryException
```
    Description copied from class: AbstractAuthorityFactory
    
    Returns a description of the underlying backing store, or null if unknown. This is for example the database software used for storing the data. The default implementation returns always null.
    
    Overrides:
    
    getBackingStoreDescription in class AbstractAuthorityFactory
    
    Returns:
    
    The description of the underlying backing store, or null.
    
    Throws:
    
    FactoryException - if a failure occurs while fetching the engine description.
  - dispose
```
public void dispose()
             throws FactoryException
```
    Clean up the object pool of workers (since we are shutting down).
    Subclasses may wish to override this method if they have their own resources to clean up (like a database connection). If you do this please remember to call super.dispose().
    
    Overrides:
    
    dispose in class AbstractAuthorityFactory
    
    Throws:
    
    FactoryException - if an error occured while disposing the factory.
  - activateWorker
```
protected abstract void activateWorker(AbstractCachedAuthorityFactory worker)
                                throws Exception
```
    Reinitialize an instance to be returned by the pool.
    Please note that BEFORE this method has been called AbstractAuthorityMediator has already:
    - provided the worker with the single shared cache
    - provided the worker with the single shared findCache
    Throws:
    
    Exception
  - destroyWorker
```
protected abstract void destroyWorker(AbstractCachedAuthorityFactory worker)
                               throws Exception
```
    Destroys an instance no longer needed by the pool.
    
    Throws:
    
    Exception
  - makeWorker
```
protected abstract AbstractCachedAuthorityFactory makeWorker()
                                                      throws Exception
```
    Creates an instance that can be returned by the pool.
    
    Throws:
    
    Exception
  - passivateWorker
```
protected abstract void passivateWorker(AbstractCachedAuthorityFactory worker)
                                 throws Exception
```
    Un-initialize an instance to be returned to the pool.
    
    Throws:
    
    Exception
  - validateWorker
```
protected abstract boolean validateWorker(AbstractCachedAuthorityFactory worker)
```
    Ensures that the instance is safe to be returned by the pool.
  - getIdentifiedObjectFinder
```
public IdentifiedObjectFinder getIdentifiedObjectFinder(Class type)
                                                 throws FactoryException
```
    Returns a finder which can be used for looking up unidentified objects.
    The returned implementation will make use of workers as needed.
    
    Overrides:
    
    getIdentifiedObjectFinder in class AbstractAuthorityFactory
    
    Parameters:
    
    type - The type of objects to look for.
    
    Returns:
    
    A finder to use for looking up unidentified objects.
    
    Throws:
    
    FactoryException - if the finder can not be created.
    
    Since:
    
    2.4

Class AbstractAuthorityMediator

Nested Class Summary

Field Summary

Fields inherited from class ReferencingFactory

Fields inherited from class AbstractFactory

Constructor Summary

Method Summary

Methods inherited from class AbstractAuthorityFactory

Methods inherited from class ReferencingFactory

Methods inherited from class AbstractFactory

Methods inherited from class Object

Methods inherited from interface CRSAuthorityFactory

Methods inherited from interface Factory

Methods inherited from interface Factory

Field Detail

factories

Constructor Detail

AbstractAuthorityMediator

AbstractAuthorityMediator

AbstractAuthorityMediator

AbstractAuthorityMediator

AbstractAuthorityMediator

Method Detail

completeHints

isConnected

toKey

trimAuthority

getAuthority

getAuthorityCodes

getDescriptionText

createObject

createCompoundCRS

createCoordinateReferenceSystem

createDerivedCRS

createGeocentricCRS

createGeographicCRS

createImageCRS

createProjectedCRS

createTemporalCRS

createVerticalCRS

createCartesianCS

createCoordinateSystem

createCoordinateSystemAxis

createCylindricalCS

createEllipsoidalCS

createPolarCS

createSphericalCS

createTimeCS

createUnit

createVerticalCS

createDatum

createEllipsoid

createEngineeringDatum

createGeodeticDatum

createImageDatum

createPrimeMeridian

createTemporalDatum

createVerticalDatum

createCoordinateOperation

createFromCoordinateReferenceSystemCodes

createWith

getBackingStoreDescription

dispose

activateWorker

destroyWorker

makeWorker

passivateWorker

validateWorker

getIdentifiedObjectFinder