Java Doc for DeferredAuthorityFactory.java in  » GIS » GeoTools-2.4.1 » org » geotools » referencing » factory » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.referencing.factory   Source Cross Reference   Class Diagram   Java Document (Java Doc)   org.geotools.referencing.factory.ReferencingFactory    org.geotools.referencing.factory.AbstractAuthorityFactory       org.geotools.referencing.factory.BufferedAuthorityFactory          org.geotools.referencing.factory.DeferredAuthorityFactory All known Subclasses:   org.geotools.referencing.factory.epsg.LongitudeFirstFactory,  org.geotools.referencing.factory.epsg.ThreadedEpsgFactory,  org.geotools.referencing.factory.epsg.FactoryUsingWKT, DeferredAuthorityFactory abstract public class DeferredAuthorityFactory extends BufferedAuthorityFactory implements OptionalFactory(Code) A buffered authority factory which will defer the until when first needed. This approach allow to etablish a connection to a database (for example) only when first needed. In addition, the backing store can be automatically disposed after a timeout and recreated when needed again. since:    2.1 version:    $Id: DeferredAuthorityFactory.java 25972 2007-06-21 13:38:35Z desruisseaux $ author:    Martin DesruisseauxBufferedAuthorityFactory Constructor Summary protected   DeferredAuthorityFactory(Hints userHints, int priority)      Constructs an instance without initial backing store. protected   DeferredAuthorityFactory(Hints userHints, int priority, int maxStrongReferences)      Constructs an instance without initial backing store. Method Summary protected  boolean canDisposeBackingStore(AbstractAuthorityFactory backingStore)      Returns true if the backing store can be disposed now. abstract protected  AbstractAuthorityFactory createBackingStore()      Creates the backing store authority factory. public synchronized  void dispose()      Releases resources immediately instead of waiting for the garbage collector. final  AbstractAuthorityFactory getBackingStore()      Returns the backing store authority factory. public  boolean isAvailable()      Returns true if this factory is available. public synchronized  boolean isConnected()      Returns true if this deferred factory is connected to its backing store. public synchronized  void setTimeout(long delay)      Set a timer for disposing the backing store after the specified amount of milliseconds of inactivity. Constructor Detail DeferredAuthorityFactory protected DeferredAuthorityFactory(Hints userHints, int priority)(Code) Constructs an instance without initial backing store. Subclasses are responsible for creating an appropriate backing store when the DeferredAuthorityFactory.createBackingStore method is invoked. Parameters:   userHints - An optional set of hints, or null if none. Parameters:   priority - The priority for this factory, as a number betweenDeferredAuthorityFactory.MINIMUM_PRIORITY MINIMUM_PRIORITY andDeferredAuthorityFactory.MAXIMUM_PRIORITY MAXIMUM_PRIORITY inclusive. See Also:   DeferredAuthorityFactory.createBackingStore since:    2.2 DeferredAuthorityFactory protected DeferredAuthorityFactory(Hints userHints, int priority, int maxStrongReferences)(Code) Constructs an instance without initial backing store. Subclasses are responsible for creating an appropriate backing store when the DeferredAuthorityFactory.createBackingStore method is invoked. Parameters:   userHints - An optional set of hints, or null if none. Parameters:   priority - The priority for this factory, as a number betweenDeferredAuthorityFactory.MINIMUM_PRIORITY MINIMUM_PRIORITY andDeferredAuthorityFactory.MAXIMUM_PRIORITY MAXIMUM_PRIORITY inclusive. Parameters:   maxStrongReferences - The maximum number of objects to keep by strong reference. See Also:   DeferredAuthorityFactory.createBackingStore since:    2.2 Method Detail canDisposeBackingStore protected boolean canDisposeBackingStore(AbstractAuthorityFactory backingStore)(Code) Returns true if the backing store can be disposed now. This method is invoked automatically after the amount of time specified by DeferredAuthorityFactory.setTimeout if the factory were not used during that time. The default implementation always returns true . Subclasses should override this method and returns false if they want to prevent the backing store disposal under some circonstances. Parameters:   backingStore - The backing store in process of being disposed. createBackingStore abstract protected AbstractAuthorityFactory createBackingStore() throws FactoryException(Code) Creates the backing store authority factory. This method is invoked the first time a createXXX(...) method is invoked. The backing store to uses in createXXX(...) methods. throws:   FactoryNotFoundException - if the backing store has not been found. throws:   FactoryException - if the creation of backing store failed for an other reason. dispose public synchronized void dispose() throws FactoryException(Code) Releases resources immediately instead of waiting for the garbage collector. This method disposes the backing store regardeless of DeferredAuthorityFactory.canDisposeBackingStore value. getBackingStore final AbstractAuthorityFactory getBackingStore() throws FactoryException(Code) Returns the backing store authority factory. The backing store to uses in createXXX(...) methods. throws:   FactoryException - if the creation of backing store failed. isAvailable public boolean isAvailable()(Code) Returns true if this factory is available. The default implementation returns false if DeferredAuthorityFactory.createBackingStore throws an exception. isConnected public synchronized boolean isConnected()(Code) Returns true if this deferred factory is connected to its backing store. This method returns false if no createFoo method has been invoked, if the backing store has been automatically disposed after the or if this factoy has been . setTimeout public synchronized void setTimeout(long delay)(Code) Set a timer for disposing the backing store after the specified amount of milliseconds of inactivity. The DeferredAuthorityFactory.createBackingStore method will be responsible for creating a new backing store when needed. Note that the backing store disposal can be vetoed if DeferredAuthorityFactory.canDisposeBackingStore returns false . Parameters:   delay - The minimal delay before to close the backing store. This delay is veryapproximative. The backing store will not be closed before, but may take asmuch as twice that time before to be closed. Fields inherited from org.geotools.referencing.factory.BufferedAuthorityFactory final static int DEFAULT_MAX(Code)(Java Doc) AbstractAuthorityFactory backingStore(Code)(Java Doc) Methods inherited from org.geotools.referencing.factory.BufferedAuthorityFactory final void completeHints()(Code)(Java Doc) public synchronized CartesianCS createCartesianCS(String code) throws FactoryException(Code)(Java Doc) public synchronized CompoundCRS createCompoundCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized CoordinateOperation createCoordinateOperation(String code) throws FactoryException(Code)(Java Doc) public synchronized CoordinateReferenceSystem createCoordinateReferenceSystem(String code) throws FactoryException(Code)(Java Doc) public synchronized CoordinateSystem createCoordinateSystem(String code) throws FactoryException(Code)(Java Doc) public synchronized CoordinateSystemAxis createCoordinateSystemAxis(String code) throws FactoryException(Code)(Java Doc) public synchronized CylindricalCS createCylindricalCS(String code) throws FactoryException(Code)(Java Doc) public synchronized Datum createDatum(String code) throws FactoryException(Code)(Java Doc) public synchronized DerivedCRS createDerivedCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized Ellipsoid createEllipsoid(String code) throws FactoryException(Code)(Java Doc) public synchronized EllipsoidalCS createEllipsoidalCS(String code) throws FactoryException(Code)(Java Doc) public synchronized EngineeringCRS createEngineeringCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized EngineeringDatum createEngineeringDatum(String code) throws FactoryException(Code)(Java Doc) public synchronized Extent createExtent(String code) throws FactoryException(Code)(Java Doc) public synchronized Set createFromCoordinateReferenceSystemCodes(String sourceCode, String targetCode) throws FactoryException(Code)(Java Doc) public synchronized GeocentricCRS createGeocentricCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized GeodeticDatum createGeodeticDatum(String code) throws FactoryException(Code)(Java Doc) public synchronized GeographicCRS createGeographicCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized ImageCRS createImageCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized ImageDatum createImageDatum(String code) throws FactoryException(Code)(Java Doc) public synchronized IdentifiedObject createObject(String code) throws FactoryException(Code)(Java Doc) public synchronized OperationMethod createOperationMethod(String code) throws FactoryException(Code)(Java Doc) public synchronized ParameterDescriptor createParameterDescriptor(String code) throws FactoryException(Code)(Java Doc) public synchronized PolarCS createPolarCS(String code) throws FactoryException(Code)(Java Doc) public synchronized PrimeMeridian createPrimeMeridian(String code) throws FactoryException(Code)(Java Doc) public synchronized ProjectedCRS createProjectedCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized SphericalCS createSphericalCS(String code) throws FactoryException(Code)(Java Doc) public synchronized TemporalCRS createTemporalCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized TemporalDatum createTemporalDatum(String code) throws FactoryException(Code)(Java Doc) public synchronized TimeCS createTimeCS(String code) throws FactoryException(Code)(Java Doc) public synchronized Unit createUnit(String code) throws FactoryException(Code)(Java Doc) public synchronized VerticalCRS createVerticalCRS(String code) throws FactoryException(Code)(Java Doc) public synchronized VerticalCS createVerticalCS(String code) throws FactoryException(Code)(Java Doc) public synchronized VerticalDatum createVerticalDatum(String code) throws FactoryException(Code)(Java Doc) Collection dependencies()(Code)(Java Doc) public synchronized void dispose() throws FactoryException(Code)(Java Doc) public synchronized Citation getAuthority()(Code)(Java Doc) public synchronized Set getAuthorityCodes(Class type) throws FactoryException(Code)(Java Doc) AbstractAuthorityFactory getBackingStore() throws FactoryException(Code)(Java Doc) public synchronized String getBackingStoreDescription() throws FactoryException(Code)(Java Doc) public synchronized InternationalString getDescriptionText(String code) throws FactoryException(Code)(Java Doc) public synchronized IdentifiedObjectFinder getIdentifiedObjectFinder(Class type) throws FactoryException(Code)(Java Doc) public synchronized Citation getVendor()(Code)(Java Doc) synchronized boolean isAvailable()(Code)(Java Doc) boolean sameAuthorityCodes(AuthorityFactory factory)(Code)(Java Doc) Methods inherited from org.geotools.referencing.factory.AbstractAuthorityFactory public CartesianCS createCartesianCS(String code) throws FactoryException(Code)(Java Doc) public CompoundCRS createCompoundCRS(String code) throws FactoryException(Code)(Java Doc) public CoordinateOperation createCoordinateOperation(String code) throws FactoryException(Code)(Java Doc) public CoordinateReferenceSystem createCoordinateReferenceSystem(String code) throws FactoryException(Code)(Java Doc) public CoordinateSystem createCoordinateSystem(String code) throws FactoryException(Code)(Java Doc) public CoordinateSystemAxis createCoordinateSystemAxis(String code) throws FactoryException(Code)(Java Doc) public CylindricalCS createCylindricalCS(String code) throws FactoryException(Code)(Java Doc) public Datum createDatum(String code) throws FactoryException(Code)(Java Doc) public DerivedCRS createDerivedCRS(String code) throws FactoryException(Code)(Java Doc) public Ellipsoid createEllipsoid(String code) throws FactoryException(Code)(Java Doc) public EllipsoidalCS createEllipsoidalCS(String code) throws FactoryException(Code)(Java Doc) public EngineeringCRS createEngineeringCRS(String code) throws FactoryException(Code)(Java Doc) public EngineeringDatum createEngineeringDatum(String code) throws FactoryException(Code)(Java Doc) public Extent createExtent(String code) throws FactoryException(Code)(Java Doc) public Set createFromCoordinateReferenceSystemCodes(String sourceCode, String targetCode) throws FactoryException(Code)(Java Doc) public GeocentricCRS createGeocentricCRS(String code) throws FactoryException(Code)(Java Doc) public GeodeticDatum createGeodeticDatum(String code) throws FactoryException(Code)(Java Doc) public GeographicCRS createGeographicCRS(String code) throws FactoryException(Code)(Java Doc) public ImageCRS createImageCRS(String code) throws FactoryException(Code)(Java Doc) public ImageDatum createImageDatum(String code) throws FactoryException(Code)(Java Doc) public IdentifiedObject createObject(String code) throws FactoryException(Code)(Java Doc) public OperationMethod createOperationMethod(String code) throws FactoryException(Code)(Java Doc) public ParameterDescriptor createParameterDescriptor(String code) throws FactoryException(Code)(Java Doc) public PolarCS createPolarCS(String code) throws FactoryException(Code)(Java Doc) public PrimeMeridian createPrimeMeridian(String code) throws FactoryException(Code)(Java Doc) public ProjectedCRS createProjectedCRS(String code) throws FactoryException(Code)(Java Doc) public SphericalCS createSphericalCS(String code) throws FactoryException(Code)(Java Doc) public TemporalCRS createTemporalCRS(String code) throws FactoryException(Code)(Java Doc) public TemporalDatum createTemporalDatum(String code) throws FactoryException(Code)(Java Doc) public TimeCS createTimeCS(String code) throws FactoryException(Code)(Java Doc) public Unit createUnit(String code) throws FactoryException(Code)(Java Doc) public VerticalCRS createVerticalCRS(String code) throws FactoryException(Code)(Java Doc) public VerticalCS createVerticalCS(String code) throws FactoryException(Code)(Java Doc) public VerticalDatum createVerticalDatum(String code) throws FactoryException(Code)(Java Doc) public void dispose() throws FactoryException(Code)(Java Doc) abstract public Citation getAuthority()(Code)(Java Doc) public String getBackingStoreDescription() throws FactoryException(Code)(Java Doc) public IdentifiedObjectFinder getIdentifiedObjectFinder(Class type) throws FactoryException(Code)(Java Doc) boolean isAvailable()(Code)(Java Doc) final protected NoSuchAuthorityCodeException noSuchAuthorityCode(Class type, String code)(Code)(Java Doc) boolean sameAuthorityCodes(AuthorityFactory factory)(Code)(Java Doc) protected String trimAuthority(String code)(Code)(Java Doc) Fields inherited from org.geotools.referencing.factory.ReferencingFactory final static Citation ALL(Code)(Java Doc) final public static Logger LOGGER(Code)(Java Doc) Methods inherited from org.geotools.referencing.factory.ReferencingFactory Collection dependencies()(Code)(Java Doc) protected static void ensureNonNull(String name, Object object) throws InvalidParameterValueException(Code)(Java Doc) public Citation getVendor()(Code)(Java Doc)