Package org.geotools.feature

Class NameImpl

  • All Implemented Interfaces:
    Serializable, Comparable<NameImpl>, Name
    Direct Known Subclasses:
    AppSchemaDataAccessConfigurator.ComplexNameImpl
    public class NameImpl
extends Object
implements Name, Serializable, Comparable<NameImpl>
    Simple implementation of Name.

    This class emulates QName, and is used as the implementation of both AttributeName and TypeName (so when the API settles down we should have a quick fix.

    Its is advantageous to us to be able to:

    • Have a API in agreement with QName - considering our target audience
    • Strongly type AttributeName and TypeName separately
    The ISO interface move towards combining the AttributeName and Attribute classes, and TypeName and Type classes, while we understand the attractiveness of this on a UML diagram it is very helpful to keep these concepts separate when playing with a strongly typed language like java.

    It case it is not obvious this is a value object and equality is based on namespace and name.

    Author:
    Justin Deoliveira, The Open Planning Project, jdeolive@openplans.org
    See Also:
    Serialized Form

    • Field Detail

      • namespace

        protected String namespace
        namespace / scope

      • local

        protected String local
        local part

    • Constructor Detail

      • NameImpl

        public NameImpl​(String local)
        Constructs an instance with the local part set. Namespace / scope is set to null.
        Parameters:
        local - The local part of the name.

      • NameImpl

        public NameImpl​(String namespace,
                String local)
        Constructs an instance with the local part and namespace set.
        Parameters:
        namespace - The namespace or scope of the name.
        local - The local part of the name.

      • NameImpl

        public NameImpl​(String namespace,
                String separator,
                String local)
        Constructs an instance with the local part and namespace set.
        Parameters:
        namespace - The namespace or scope of the name.
        local - The local part of the name.

      • NameImpl

        public NameImpl​(QName qName)
        Constract an instance from the provided QName.

    • Method Detail

      • isGlobal

        public boolean isGlobal()
        Description copied from interface: Name
        Returns true if getNamespaceURI is null
        Specified by:
        isGlobal in interface Name
        Returns:
        Returns true if getNamespaceURI is null

      • getSeparator

        public String getSeparator()
        Description copied from interface: Name
        Separator to use between getNamespaceURI() and getLocalPart() when constructing getURI().

        This separator is only used to construct a visually pleasing getURI() result. The value to use as a separator depends on the registry or namespace you are working with. JNDI naming services have been known to use "/" and ":". Referring to an element in an XMLSchema document has been represented with a "#" symbol.

        Specified by:
        getSeparator in interface Name
        Returns:
        A separator (such as "/" or ":").

      • getNamespaceURI

        public String getNamespaceURI()
        Description copied from interface: Name
        Returns the URI of the namespace for this name.

        In ISO 19103 this is known as scope and containes a backpointer to the containing namespace. This solution is too heavy for our purposes, and we expect applications to provide their own lookup mechanism through which they can use this URI. The namespace URI does serve to make this name unique and is checked as part of the equals operation.

        Specified by:
        getNamespaceURI in interface Name

      • getLocalPart

        public String getLocalPart()
        Description copied from interface: Name
        Retrieve the "local" name.

        This mechanism captures the following ISO 19103 concerns:

        • GenericName.depth(): this concept is not interesting, we assume a namespace would be able to navigate through contained namespace on its own based on this local part.
        • GenericName.asLocalName()
        • GenericName.name()
        Specified by:
        getLocalPart in interface Name
        Returns:
        local name (can be used in namespace lookup)

      • getURI

        public String getURI()
        Description copied from interface: Name
        Convert this name to a complete URI.

        This URI is constructed with the getNamespaceURI(), getSeparator() and getLocalPart().

        This method captures the following concerns of ISO 19103 concerns:

        • GenericName.getParsedNames()
        • toFullyQuantifiedName()

        As an example:

        • namespace: "gopher://localhost/example" separator: "/" local: "name"
        • namespace: "gopher://localhost" separator: "/" local: "example/name"
        Both return: "gopher://localhost/example/name" as they indicate the same entry in the namespace system (such as a Registry or JNDI naming service).
        Specified by:
        getURI in interface Name
        Returns:
        a complete URI constructed of namespace URI and the local part.

      • hashCode

        public int hashCode()
        Returns a hash code value for this operand.
        Specified by:
        hashCode in interface Name
        Overrides:
        hashCode in class Object
        Returns:
        a hascode based on getURI()

      • equals

        public boolean equals​(Object obj)
        value object with equality based on name and namespace.
        Specified by:
        equals in interface Name
        Overrides:
        equals in class Object
        Returns:
        true if getURI is equal.