org.geotools.referencing

Class NamedIdentifier

Object

NamedIdentifier

All Implemented Interfaces:

Serializable, Comparable<GenericName>, Identifier, ReferenceIdentifier, GenericName

public class NamedIdentifier
extends Object
implements ReferenceIdentifier, GenericName, Comparable<GenericName>, Serializable

An identification of a CRS object. The main interface implemented by this class is ReferenceIdentifier. However, this class also implements GenericName in order to make it possible to reuse the same identifiers in the list of aliases. Casting an alias's generic name to an identifier gives access to more informations, like the URL of the authority.

The generic name will be infered from identifier attributes. More specifically, a scoped name will be constructed using the shortest authority's alternate titles (or the main title if there is no alternate titles) as the scope, and the code as the head. This heuristic rule seems raisonable since, according ISO 19115, the alternate titles often contains abreviation (for example "DCW" as an alternative title for "Digital Chart of the World").

Since:

2.1

Author:

Martin Desruisseaux (IRD)

See Also:

Serialized Form

Field Summary

Fields inherited from interface ReferenceIdentifier

CODESPACE_KEY, VERSION_KEY

Fields inherited from interface Identifier

AUTHORITY_KEY, CODE_KEY

Constructor Summary

Constructors

Constructor and Description
NamedIdentifier(Citation authority, InternationalString code) Constructs an identifier from an authority and code informations.
NamedIdentifier(Citation authority, String code) Constructs an identifier from an authority and code informations.
NamedIdentifier(Citation authority, String code, String version) Constructs an identifier from an authority and code informations.
NamedIdentifier(Map<String,?> properties) Constructs an identifier from a set of properties.

Method Summary

Modifier and Type	Method and Description
int	compareTo(GenericName object) Compares this name with the specified object for order.
int	depth() Returns the depth of this name within the namespace hierarchy.
boolean	equals(Object object) Compares this identifier with the specified object for equality.
Citation	getAuthority() Organization or party responsible for definition and maintenance of the code.
String	getCode() Identifier code or name, optionally from a controlled list or pattern.
String	getCodeSpace() Name or identifier of the person or organization responsible for namespace.
List<LocalName>	getParsedNames() Returns the sequence of local names making this generic name.
InternationalString	getRemarks() Comments on or information about this identifier, or null if none.
String	getVersion() Identifier of the version of the associated code space or code, as specified by the code authority.
int	hashCode() Returns a hash code value for this identifier.
LocalName	head() Returns the first element in the sequence of parsed names.
ScopedName	push(GenericName scope) Returns this name expanded with the specified scope.
NameSpace	scope() Returns the scope (name space) in which this name is local.
LocalName	tip() Returns the last element in the sequence of parsed names.
GenericName	toFullyQualifiedName() Returns a view of this name as a fully-qualified name.
InternationalString	toInternationalString() Returns a local-dependent string representation of this generic name.
String	toString() Returns a string representation of this generic name.

Methods inherited from class Object

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

Constructor Detail

NamedIdentifier

public NamedIdentifier(Map<String,?> properties)
                throws IllegalArgumentException

Constructs an identifier from a set of properties. Keys are strings from the table below. Key are case-insensitive, and leading and trailing spaces are ignored. The map given in argument shall contains at least a "code" property. Other properties listed in the table below are optional.

Property name	Value type	Value given to
"code"	String	getCode()
"code"	String	getCodeSpace()
"authority"	String or Citation	getAuthority()
"version"	String	getVersion()
"remarks"	String or InternationalString	getRemarks()

"remarks" is a localizable attributes which may have a language and country code suffix. For example the "remarks_fr" property stands for remarks in French and the "remarks_fr_CA" property stands for remarks in French Canadian.

Parameters:

properties - The properties to be given to this identifier.

Throws:

InvalidParameterValueException - if a property has an invalid value.

IllegalArgumentException - if a property is invalid for some other reason.

NamedIdentifier

public NamedIdentifier(Citation authority,
                       InternationalString code)

Constructs an identifier from an authority and code informations. This is a convenience constructor for commonly-used parameters. If more control are wanted (for example adding remarks), use the constructor with a properties map.

Parameters:

authority - The authority (e.g. OGC or EPSG).

code - The code. The English name is used for the code, and the international string is used for the generic name.

NamedIdentifier

public NamedIdentifier(Citation authority,
                       String code)

Constructs an identifier from an authority and code informations. This is a convenience constructor for commonly-used parameters. If more control are wanted (for example adding remarks), use the constructor with a properties map.

Parameters:

authority - The authority (e.g. OGC or EPSG).

code - The code. This parameter is mandatory.

NamedIdentifier

public NamedIdentifier(Citation authority,
                       String code,
                       String version)

Constructs an identifier from an authority and code informations. This is a convenience constructor for commonly-used parameters. If more control are wanted (for example adding remarks), use the constructor with a properties map.

Parameters:

authority - The authority (e.g. OGC or EPSG).

code - The code. This parameter is mandatory.

version - The version, or null if none.

Method Detail

getCode

public String getCode()

Identifier code or name, optionally from a controlled list or pattern.

Specified by:

getCode in interface Identifier

Returns:

The code.

getCodeSpace

public String getCodeSpace()

Name or identifier of the person or organization responsible for namespace.

Specified by:

getCodeSpace in interface ReferenceIdentifier

Returns:

The codespace, or null if not available.

getAuthority

public Citation getAuthority()

Organization or party responsible for definition and maintenance of the code.

Specified by:

getAuthority in interface Identifier

Returns:

The authority, or null if not available.

getVersion

public String getVersion()

Identifier of the version of the associated code space or code, as specified by the code authority. This version is included only when the code uses versions. When appropriate, the edition is identified by the effective date, coded using ISO 8601 date format.

Specified by:

getVersion in interface ReferenceIdentifier

Returns:

The version, or null if not available.

getRemarks

public InternationalString getRemarks()

Comments on or information about this identifier, or null if none.

Returns:

Optional comments about this identifier.

head

public LocalName head()

Returns the first element in the sequence of parsed names.

Specified by:

head in interface GenericName

Returns:

The first element in the list of parsed names.

Since:

2.6

tip

public LocalName tip()

Returns the last element in the sequence of parsed names.

Specified by:

tip in interface GenericName

Returns:

The last element in the list of parsed names.

Since:

2.3

scope

public NameSpace scope()

Returns the scope (name space) in which this name is local.

Specified by:

scope in interface GenericName

Returns:

The scope of this name.

Since:

2.3

depth

public int depth()

Returns the depth of this name within the namespace hierarchy.

Specified by:

depth in interface GenericName

Returns:

The depth of this name.

Since:

2.3

getParsedNames

public List<LocalName> getParsedNames()

Returns the sequence of local names making this generic name. Each element in this list is like a directory name in a file path name. The length of this sequence is the generic name depth.

Specified by:

getParsedNames in interface GenericName

Returns:

The local names making this generic name, without the scope. Shall never be null neither empty.

push

public ScopedName push(GenericName scope)

Returns this name expanded with the specified scope. One may represent this operation as a concatenation of the specified name with this.

Specified by:

push in interface GenericName

Parameters:

scope - The name to use as prefix.

Returns:

A concatenation of the given name with this name.

Since:

2.3

toFullyQualifiedName

public GenericName toFullyQualifiedName()

Returns a view of this name as a fully-qualified name.

Specified by:

toFullyQualifiedName in interface GenericName

Returns:

The fully-qualified name (never null).

Since:

2.3

toInternationalString

public InternationalString toInternationalString()

Returns a local-dependent string representation of this generic name. This string is similar to the one returned by toString() except that each element has been localized in the specified locale. If no international string is available, then this method returns an implementation mapping to toString() for all locales.

Specified by:

toInternationalString in interface GenericName

Returns:

A localizable string representation of this name.

toString

public String toString()

Returns a string representation of this generic name. This string representation is local-independant. It contains all elements listed by getParsedNames() separated by an arbitrary character (usually : or /).

Specified by:

toString in interface GenericName

Overrides:

toString in class Object

Returns:

A local-independant string representation of this name.

compareTo

public int compareTo(GenericName object)

Compares this name with the specified object for order. Returns a negative integer, zero, or a positive integer as this name lexicographically precedes, is equals to, or follows the specified object.

Specified by:

compareTo in interface Comparable<GenericName>

Parameters:

object - The object to compare with.

Returns:

-1 if this identifier precedes the given object, +1 if it follows it.

equals

public boolean equals(Object object)

Compares this identifier with the specified object for equality.

Overrides:

equals in class Object

Parameters:

object - The object to compare with this name.

Returns:

true if the given object is equals to this name.

hashCode

public int hashCode()

Returns a hash code value for this identifier.

Overrides:

hashCode in class Object