org.gvsig.fmap.dal.feature.impl

Class DefaultFeatureReference

java.lang.Object

org.gvsig.fmap.dal.feature.impl.DefaultFeatureReference

All Implemented Interfaces:

FeatureReference, FeatureReferenceProviderServices, Persistent

public class DefaultFeatureReference
extends Object
implements FeatureReferenceProviderServices, Persistent

Constructor Summary

Constructors

Constructor and Description
DefaultFeatureReference() Constructor used by the persistence manager.
DefaultFeatureReference(DefaultFeature feature)
DefaultFeatureReference(FeatureStore store)
DefaultFeatureReference(FeatureStore store, FeatureProvider fdata)
DefaultFeatureReference(FeatureStore store, Object oid)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Feature	getFeature() Returns the referenced Feature
Feature	getFeature(FeatureType featureType) Returns the referenced Feature
String	getFeatureTypeId() Return the identifier of the FeatureType of the represented feature
String[]	getKeyNames() Return the attribute names that compound the Primary Key of represented feature
Object	getKeyValue(String name) Return the value of an attribute that compound the Primary Key of represented feature
Object	getOID() Return the OID (Object IDentifier) object that represents this reference Note: this can be null if provider does not support OID
int	hashCode()
boolean	isNewFeature() Inform that represented feature is not stored in the original data store
void	loadFromState(PersistentState state) Set the state of the object from the state passed as parameter.
static void	registerPersistent()
void	saveToState(PersistentState state) Saves the internal state of the object on the provided PersistentState object.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DefaultFeatureReference

public DefaultFeatureReference()

Constructor used by the persistence manager. Don't use directly. After to invoke this method, the persistence manager calls the the method loadFromState(PersistentState) to set the values of the internal attributes that this class needs to work.

DefaultFeatureReference

public DefaultFeatureReference(DefaultFeature feature)

DefaultFeatureReference

public DefaultFeatureReference(FeatureStore store,
                               FeatureProvider fdata)

DefaultFeatureReference

public DefaultFeatureReference(FeatureStore store)

DefaultFeatureReference

public DefaultFeatureReference(FeatureStore store,
                               Object oid)

Method Detail

getFeature

public Feature getFeature()
                   throws DataException

Description copied from interface: FeatureReference

Returns the referenced Feature

Specified by:

getFeature in interface FeatureReference

Returns:

the Feature identified by this FeatureReference

Throws:

DataException

getFeature

public Feature getFeature(FeatureType featureType)
                   throws DataException

Description copied from interface: FeatureReference

Returns the referenced Feature

Specified by:

getFeature in interface FeatureReference

Parameters:

featureType - The FeatureType to which the referenced Feature belongs.

Returns:

the Feature identified by this FeatureReference

Throws:

DataException

getOID

public Object getOID()

Description copied from interface: FeatureReferenceProviderServices

Return the OID (Object IDentifier) object that represents this reference Note: this can be null if provider does not support OID

Specified by:

getOID in interface FeatureReferenceProviderServices

Returns:

Object that identifies a feature

See Also:

FeatureStoreProvider.getOIDType(), FeatureType.hasOID()

isNewFeature

public boolean isNewFeature()

Description copied from interface: FeatureReference

Inform that represented feature is not stored in the original data store

Specified by:

isNewFeature in interface FeatureReference

Returns:

true if not in the original store

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getKeyNames

public String[] getKeyNames()

Description copied from interface: FeatureReferenceProviderServices

Return the attribute names that compound the Primary Key of represented feature

Specified by:

getKeyNames in interface FeatureReferenceProviderServices

Returns:

attribute names

See Also:

FeatureReferenceProviderServices.getKeyValue(String)

getKeyValue

public Object getKeyValue(String name)

Description copied from interface: FeatureReferenceProviderServices

Return the value of an attribute that compound the Primary Key of represented feature

Specified by:

getKeyValue in interface FeatureReferenceProviderServices

Returns:

See Also:

FeatureReferenceProviderServices.getKeyNames()

getFeatureTypeId

public String getFeatureTypeId()

Description copied from interface: FeatureReferenceProviderServices

Return the identifier of the FeatureType of the represented feature

Specified by:

getFeatureTypeId in interface FeatureReferenceProviderServices

Returns:

loadFromState

public void loadFromState(PersistentState state)
                   throws PersistenceException

Description copied from interface: Persistent

Set the state of the object from the state passed as parameter.

Specified by:

loadFromState in interface Persistent

Throws:

PersistenceException

saveToState

public void saveToState(PersistentState state)
                 throws PersistenceException

Description copied from interface: Persistent

Saves the internal state of the object on the provided PersistentState object.

Specified by:

saveToState in interface Persistent

Throws:

PersistenceException

registerPersistent

public static void registerPersistent()

toString

public String toString()

Overrides:

toString in class Object