org.geotools.filter.identity

Class FeatureIdImpl

Object

FeatureIdImpl

All Implemented Interfaces:

FeatureId, Identifier

Direct Known Subclasses:

FeatureIdVersionedImpl

public class FeatureIdImpl
extends Object
implements FeatureId

Implementation of FeatureId

This class is mutable under one condition only; during a commit a datastore can update the internal fid to reflect the real identify assigned by the database or wfs.

Since:

2.5

Author:

Justin Deoliveira, The Open Planning Project

Field Summary

Fields

Modifier and Type	Field and Description
protected String	fid underlying fid
protected String	origionalFid

Fields inherited from interface FeatureId

VERSION_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
FeatureIdImpl(String fid)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Identifier is a data object, equals is based just on getID()
boolean	equalsExact(FeatureId id) Check if the provided FeatureId is an exact match (including any optional version information).
boolean	equalsFID(FeatureId id) Checks if the provided FeatureId reflects the same feature.
String	getFeatureVersion() Version identifier for the feature instance, may be null
String	getID() The identifier value, which is a string.
String	getPreviousRid() previousRid attribute may be used, in implementations that support versioning, to report the previous identifier of a resource.
String	getRid() id of the resource that shall be selected by the predicate.
int	hashCode() Identifier is a data object, hashCode is based just on getID()
boolean	matches(Feature feature)
boolean	matches(Object object) Evaluates the identifer value against the given feature.
void	setID(String id)
String	toString() Returns a string representation of the identifier.

Methods inherited from class Object

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

Field Detail

fid

protected String fid

underlying fid

origionalFid

protected String origionalFid

Constructor Detail

FeatureIdImpl

public FeatureIdImpl(String fid)

Method Detail

getID

public String getID()

Description copied from interface: FeatureId

The identifier value, which is a string.

Specified by:

getID in interface FeatureId

Specified by:

getID in interface Identifier

setID

public void setID(String id)

matches

public boolean matches(Feature feature)

matches

public boolean matches(Object object)

Description copied from interface: FeatureId

Evaluates the identifer value against the given feature.

Specified by:

matches in interface FeatureId

Specified by:

matches in interface Identifier

Parameters:

object - The feature to be tested.

Returns:

true if a match, otherwise false.

toString

public String toString()

Description copied from interface: Identifier

Returns a string representation of the identifier.

Specified by:

toString in interface Identifier

Overrides:

toString in class Object

Returns:

getID().toString()

equals

public boolean equals(Object obj)

Description copied from interface: Identifier

Identifier is a data object, equals is based just on getID()

Specified by:

equals in interface Identifier

Overrides:

equals in class Object

Returns:

true if obj is an Identifier with the same getID()

hashCode

public int hashCode()

Description copied from interface: Identifier

Identifier is a data object, hashCode is based just on getID()

Specified by:

hashCode in interface Identifier

Overrides:

hashCode in class Object

Returns:

hashCode based on getID()

equalsExact

public boolean equalsExact(FeatureId id)

Description copied from interface: FeatureId

Check if the provided FeatureId is an exact match (including any optional version information).

Specified by:

equalsExact in interface FeatureId

Returns:

true if this is an exact match (including any optional version information)

equalsFID

public boolean equalsFID(FeatureId id)

Description copied from interface: FeatureId

Checks if the provided FeatureId reflects the same feature.

This comparison does not compare any optional version information.

Specified by:

equalsFID in interface FeatureId

Returns:

true if both identifiers describe the same feature (does not compare version information).

getRid

public String getRid()

Description copied from interface: FeatureId

id of the resource that shall be selected by the predicate.

Equals to FeatureId.getID() if no feature version is provided, or getID() + "@" + getFeatureVersion() if getFeatureVersion() != null

If an implementation that references this International Standard supports versioning, the rid shall be a system generated hash containing a logical resource identifier and a version number. The specific details of the hash are implementation dependant and shall be opaque to a client

If versioning is not supported, the same value than FeatureId.getID() shall be returned.

Specified by:

getRid in interface FeatureId

Returns:

Resource identifier made up of FID (combined with FeatureVersion if available)

getPreviousRid

public String getPreviousRid()

Description copied from interface: FeatureId

previousRid attribute may be used, in implementations that support versioning, to report the previous identifier of a resource.

Specified by:

getPreviousRid in interface FeatureId

Returns:

Previous rid if available; or null

getFeatureVersion

public String getFeatureVersion()

Description copied from interface: FeatureId

Version identifier for the feature instance, may be null

Specified by:

getFeatureVersion in interface FeatureId

Returns:

Optional version information; null if not available

See Also:

FeatureId.getID(), FeatureId.getRid()