org.opengis.util

Interface GenericName

All Superinterfaces:

Comparable<GenericName>

All Known Subinterfaces:

LocalName, MemberName, ScopedName, TypeName

@UML(identifier="GenericName",
     specification=ISO_19103)
public interface GenericName
extends Comparable<GenericName>

A sequence of identifiers rooted within the context of a namespace. This interface is similar in purpose to Name from the Java Naming and Directory Interface. All generic names:

• carry an association with their scope in which they are considered local;
• have the ability to provide a parsed version of themselves.

Names are immutables. They may be fully qualified like "org.opengis.util.Record", or they may be relative to a scope like "util.Record" in the "org.opengis" scope. The illustration below shows all possible constructions for "org.opengis.util.Record". They are all instances of ScopedName except the last one which is a LocalName.

org . opengis . util . Record scope() getParsedNames() head tail global {"org", "opengis", "util", "Record"} path tip org . opengis . util . Record scope head tail "org" {"opengis", "util", "Record"} path tip org . opengis . util . Record scope head tail "org.opengis" {"util", "Record"} path tip org . opengis . util . Record scope head "org.opengis.util" {"Record"} tip

The natural ordering for generic names is implementation dependent. A recommended practice is to compare lexicographically each element in the list of parsed names. Specific attributes of the name, such as how it treats case, may affect the ordering. In general, two names of different classes may not be compared.

Since:

1.0

See Also:

Name

Method Summary

Methods

Modifier and Type	Method and Description
int	depth() Indicates the number of levels specified by this name.
List<? extends LocalName>	getParsedNames() Returns the sequence of local names making this generic name.
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 interface Comparable

compareTo

Method Detail

scope

@UML(identifier="scope",
     obligation=MANDATORY,
     specification=ISO_19103)
NameSpace scope()

Returns the scope (name space) in which this name is local. The scope is set on creation and is not modifiable. The scope of a name determines where a name starts.

Example: For a fully qualified name (a name having a global namespace) "org.opengis.util.Record", if this instance is the name "util.Record", then the scope of this instance has the name "org.opengis".

Returns:

The scope of this name.

Since:

2.1

depth

@UML(identifier="depth",
     obligation=MANDATORY,
     specification=ISO_19103)
int depth()

Indicates the number of levels specified by this name. The depth is the size of the list returned by the getParsedNames() method. As such it is a derived parameter. For any LocalName, it is always one. For a ScopedName it is some number greater than or equal to 2.

This method is similar in purpose to Name from the Java Naming and Directory Interface.

Example: If this name is "org.opengis.util.Record", then this method shall returns 4. If this name is "util.Record" in scope "org.opengis", then this method shall returns 2.

Returns:

The depth of this name.

Since:

2.1

getParsedNames

@UML(identifier="parsedName",
     obligation=MANDATORY,
     specification=ISO_19103)
List<? extends LocalName> getParsedNames()

Returns the sequence of local names making this generic name. The length of this sequence is the depth. It does not include the scope.

This method is similar in purpose to Name from the Java Naming and Directory Interface.

Example: If this name is "org.opengis.util.Record", then this method shall returns a list containing {"org", "opengis", "util", "Record"} elements in that iteration order. If this name is "util.Record" in scope "org.opengis", then this method shall returns a list containing only {"util", "Record"} elements.

Returns:

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

head

@UML(identifier="ScopedName.head",
     obligation=MANDATORY,
     specification=ISO_19103)
LocalName head()

Returns the first element in the sequence of parsed names. For any LocalName, this is always this.

This method is similar in purpose to Name.get(0) from the Java Naming and Directory Interface.

Example: If this name is "org.opengis.util.Record" (no matter its scope), then this method shall returns "org".

Returns:

The first element in the list of parsed names.

Since:

2.2

Departure from OGC/ISO specification:
ISO defines this method in ScopedName only. GeoAPI defines it in the base class since LocalName can return a sensible value for it. This reduces the need for casts.

tip

LocalName tip()

Returns the last element in the sequence of parsed names. For any LocalName, this is always this.

This method is similar in purpose to Name.get(size-1) from the Java Naming and Directory Interface.

Example: If this name is "org.opengis.util.Record" (no matter its scope), then this method shall returns "Record".

Returns:

The last element in the list of parsed names.

Since:

2.1

Departure from OGC/ISO specification:
This method is not part of ISO specification. It does not provide any additional information compared to that accessible though the standard methods defined by ISO, but provides easier to access frequently requested information.

toFullyQualifiedName

GenericName toFullyQualifiedName()

Returns a view of this name as a fully-qualified name. The scope of a fully qualified name must be global. If the scope of this name is already global, then this method shall returns this.

Example: If this name is "util.Record" (depth of two) and its scope has the name "org.opengis", then the fully qualified name shall be "org.opengis.util.Record".

Returns:

The fully-qualified name (never null).

Since:

2.1

Departure from OGC/ISO specification:
This method is not part of ISO specification. It does not provide any additional information compared to that accessible though the standard methods defined by ISO, but provides easier to access frequently requested information.

push

@UML(identifier="push",
     obligation=MANDATORY,
     specification=ISO_19103)
ScopedName push(GenericName scope)

Returns this name expanded with the specified scope. One may represent this operation as a concatenation of the specified scope with this. In pseudo-code, the following relationships must hold (the last one is specific to ScopedName):

• push(foo : LocalName).head() equals foo
• push(foo : LocalName).tail() equals this
• push(foo : GenericName).scope() equals foo.scope()
• push(foo : GenericName).getParsedNames() equals foo.getParsedNames().addAll(this.getParsedNames())

This method is similar in purpose to Name.addAll(0,name) from the Java Naming and Directory Interface.

Example: If this name is "util.Record" and the given scope argument is "org.opengis", then this.push(scope) shall returns "org.opengis.util.Record".

Parameters:

scope - The name to use as prefix.

Returns:

A concatenation of the given name with this name.

Since:

2.1

toString

String toString()

Returns a string representation of this generic name. This string representation is local-independent. It contains all elements listed by getParsedNames() separated by a namespace-dependent character (usually : or /). This rule implies that the result may or may not be fully qualified. Special cases:

• toFullyQualifiedName().toString() is guaranteed to contains the scope (if any).
• tip().toString() is guaranteed to not contains any scope.

Overrides:

toString in class Object

Returns:

A local-independent string representation of this name.

Departure from OGC/ISO specification:
This method is not part of ISO specification. It does not provide any additional information compared to that accessible though the standard methods defined by ISO, but provides easier to access frequently requested information.

toInternationalString

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 shall returns an implementation mapping to toString() for all locales.

Example: An implementation may want to localize the "My Documents" directory name into "Mes Documents" on French installation of Windows operating system.

Returns:

A localizable string representation of this name.

Departure from OGC/ISO specification:
This method is not part of the ISO specification. It has been added to provide a way to localize the name.