Metacat

<?xml version="1.0" ?>

<xsd:schema

   targetNamespace="http://www.opengis.net/wfs"

   xmlns:wfs="http://www.opengis.net/wfs"

   xmlns:gml="http://www.opengis.net/gml"

   xmlns:ogc="http://www.opengis.net/ogc"

   xmlns:xsd="http://www.w3.org/2001/XMLSchema"

   elementFormDefault="qualified">

   <!-- Comments in this document may impose additional constraints

        beyond those codified in the schema syntax.  A conformant

        Web Feature Server must provide Capabilities XML that

           (1) validates against this schema

           (2) does not violate the constraints stated in

               comments herein. -->

   <!-- ==============================================================

        Imports ...

        ============================================================== -->

   <xsd:import namespace="http://www.opengis.net/ogc"

               schemaLocation="../../filter/1.0.0/filterCapabilities.xsd" />

   <!-- ==============================================================

        Global elements and attributes

        ============================================================== -->

   <!-- A descriptive narrative for more

        information about this server. -->

   <xsd:element name="Abstract" type="xsd:string"/>

   <!-- Elements containing text blocks indicating what 

        fees or access constraints are imposed by the 

        service provider on the service or data retrieved

        from the server. The reserved keyword "NONE" 

        indicates no constraint exists. -->

   <xsd:element name="AccessConstraints" type="xsd:string"/>

   <xsd:element name="Fees" type="xsd:string"/>

   <!-- Short words to help catalog searching.

        Currently, no controlled vocabulary has

        been defined. -->

   <xsd:element name="Keywords" type="xsd:string"/>

   <!-- The top-level HTTP URL of this service. 

        Typically the URL of a "home page" for

        the service.  See also the onlineResource

        attributes of <DCPType> children, below.

        Currently, no non-HTTP platforms have been

        specified. -->

   <xsd:element name="OnlineResource"/>

   <xsd:element name="SRS" type="xsd:string"/>

   <!-- A human-readable title to briefly identify

        this server in menus. -->

   <xsd:element name="Title" type="xsd:string"/>

   <xsd:element name="Query"  type="wfs:EmptyType"/>

   <xsd:element name="Insert" type="wfs:EmptyType"/>

   <xsd:element name="Update" type="wfs:EmptyType"/>

   <xsd:element name="Delete" type="wfs:EmptyType"/>

   <xsd:element name="Lock"   type="wfs:EmptyType"/>

   <!-- REDEFINE THIS ELEMENT AS NEEDED IN YOUR XML  -->

   <xsd:element name="VendorSpecificCapabilities" type="xsd:string"/>

   <!-- ==============================================================

        Root element

        ============================================================== -->

   <!-- The parent element of the Capabilities document includes as

        children a Service element with general information about the

        server, a Capability element with specific information about

        the kinds of functionality offered by the server, a FeatureTypeList

        element defining the list of all feature types available from

        this server and a FeatureCapabilities element describing the

        filter capabilities of the server. -->

   <xsd:element name="WFS_Capabilities" type="wfs:WFS_CapabilitiesType"/>

   <!-- ==============================================================

        Types

        ============================================================== -->

   <xsd:complexType name="WFS_CapabilitiesType">

      <xsd:sequence>

         <!-- The Service element provides metadata for

              the service as a whole. -->

         <xsd:element name="Service" type="wfs:ServiceType"/>

         <!-- A Capability lists available request

              types, how exceptions may be reported, and

              whether any vendor-specific capabilities

              are defined.  It also lists all the

              feature types available from this feature 

              server. -->

         <xsd:element name="Capability" type="wfs:CapabilityType"/>

         <xsd:element name="FeatureTypeList" type="wfs:FeatureTypeListType"/>

         <xsd:element ref="ogc:Filter_Capabilities" />

      </xsd:sequence>

      <!-- The version attribute specifies the specification revision

           to which this schema applies.  Its format is one,t two or three

           integers separated by periods: "x", or "x.y", or "x.y.z",

           with the most significant number appearing first.  Future

           revisions are guaranteed to be numbered in monotonically

           increasing fashion, though gaps may appear in the sequence. -->

      <xsd:attribute name="version"

                     type="xsd:string" fixed="1.0.0"/>

      <!-- The updateSequence attribute is a sequence number for

           managing propagation of the contents of this document.

           For example, if a Feature Server adds some data feature

           types it can increment the update sequence to inform

           catalog servers that their previously cached versions

           are now stale. The format is a positive integer. -->

      <xsd:attribute name="updateSequence"

                     type="xsd:nonNegativeInteger" default="0"/>

   </xsd:complexType>

   <xsd:complexType name="ServiceType">

      <xsd:sequence>

         <xsd:element name="Name" type="xsd:string"/>

         <xsd:element ref="wfs:Title"/>

         <xsd:element ref="wfs:Abstract" minOccurs="0"/>

         <xsd:element ref="wfs:Keywords" minOccurs="0"/>

         <xsd:element ref="wfs:OnlineResource"/>

         <xsd:element ref="wfs:Fees" minOccurs="0"/>

         <xsd:element ref="wfs:AccessConstraints" minOccurs="0"/>

      </xsd:sequence>

   </xsd:complexType>

   <xsd:complexType name="CapabilityType">

      <xsd:sequence>

         <xsd:element name="Request" type="wfs:RequestType"/>

         <!-- The optional VendorSpecificCapabilities element lists any

              capabilities unique to a particular server.  Because the

              information is not known a priori, it cannot be constrained

              by this particular schema document.  A vendor-specific schema

              fragment must be supplied at the start of the XML capabilities

              document, after the reference to the general WFS_Capabilities

              schema. -->

         <xsd:element ref="wfs:VendorSpecificCapabilities" minOccurs="0"/>

      </xsd:sequence>

   </xsd:complexType>

   <xsd:complexType name="FeatureTypeListType">

      <xsd:sequence>

         <xsd:element name="Operations"

                      type="wfs:OperationsType" minOccurs="0"/>

         <xsd:element name="FeatureType"

                      type="wfs:FeatureTypeType" maxOccurs="unbounded"/>

      </xsd:sequence>

   </xsd:complexType>

   <!-- Available WFS-defined request types are listed here. At

        least one of the values is required, but more than one

        may be given. -->

   <xsd:complexType name="RequestType">

      <xsd:choice maxOccurs="unbounded">

         <xsd:element name="GetCapabilities"

                      type="wfs:GetCapabilitiesType"/>

         <xsd:element name="DescribeFeatureType"

                      type="wfs:DescribeFeatureTypeType"/>

         <xsd:element name="Transaction"

                      type="wfs:TransactionType"/>

         <xsd:element name="GetFeature"

                      type="wfs:GetFeatureTypeType"/>

         <xsd:element name="GetFeatureWithLock"

                      type="wfs:GetFeatureTypeType"/>

         <xsd:element name="LockFeature"

                      type="wfs:LockFeatureTypeType"/>

      </xsd:choice>

   </xsd:complexType>

   <xsd:complexType name="GetCapabilitiesType">

      <xsd:sequence>

         <xsd:element name="DCPType"

                      type="wfs:DCPTypeType" maxOccurs="unbounded"/>

      </xsd:sequence>

   </xsd:complexType>

   <xsd:complexType name="DescribeFeatureTypeType">

      <xsd:sequence>

         <xsd:element name="SchemaDescriptionLanguage"

                      type="wfs:SchemaDescriptionLanguageType"/>

         <xsd:element name="DCPType"

                      type="wfs:DCPTypeType" maxOccurs="unbounded"/>

      </xsd:sequence>

   </xsd:complexType>

   <xsd:complexType name="TransactionType">

      <xsd:sequence>

         <xsd:element name="DCPType"

                      type="wfs:DCPTypeType" maxOccurs="unbounded"/>

      </xsd:sequence>

   </xsd:complexType>

   <xsd:complexType name="GetFeatureTypeType">

      <xsd:sequence>

         <xsd:element name="ResultFormat"

                      type="wfs:ResultFormatType"/>

         <xsd:element name="DCPType"

                      type="wfs:DCPTypeType" maxOccurs="unbounded"/>

      </xsd:sequence>

   </xsd:complexType>

   <xsd:complexType name="LockFeatureTypeType">

      <xsd:sequence>

         <xsd:element name="DCPType"

                      type="wfs:DCPTypeType" maxOccurs="unbounded"/>

      </xsd:sequence>

   </xsd:complexType>

   <!-- Available Distributed Computing Platforms (DCPs) are

        listed here.  At present, only HTTP is defined. -->

   <xsd:complexType name="DCPTypeType">

      <xsd:sequence>

         <xsd:element name="HTTP" type="wfs:HTTPType"/>

      </xsd:sequence>

   </xsd:complexType>

   <!-- A list of feature types available from

        this server.  The following table

        specifies the number and source of the

        various elements that are available for

        describing a feature type.

        element             number    comments

        =================   =======   ======================================

        Name                    1     this is the Name of the feature type

        Title                 0/1     an optional Meaningful title for the

                                      feature type  (e.g. "Ontario Roads"

                                      for ROADL_1M")

        Abstract              0/1     optional; no Default

        Keywords              0/1     optional; no Default

        SRS                     1     the SRS that should be used

                                      when specifying the state of

                                      the feature

        Operations            0/1     a list of available operations for

                                      the feature type

        LatLongBoundingBox      1+    bounding box(s) of data

        MetadataURL           0/1+    optional; no default

   -->

   <xsd:complexType name="FeatureTypeType">

      <xsd:sequence>

         <xsd:element name="Name" type="xsd:QName"/>

         <xsd:element ref="wfs:Title" minOccurs="0"/>

         <xsd:element ref="wfs:Abstract" minOccurs="0"/>

         <xsd:element ref="wfs:Keywords" minOccurs="0"/>

         <xsd:element ref="wfs:SRS"/>

         <xsd:element name="Operations"

                      type="wfs:OperationsType" minOccurs="0"/>

         <xsd:element name="LatLongBoundingBox"

                      type="wfs:LatLongBoundingBoxType"

                      minOccurs="0" maxOccurs="unbounded"/>

         <xsd:element name="MetadataURL"

                      type="wfs:MetadataURLType"

                      minOccurs="0" maxOccurs="unbounded"/>

      </xsd:sequence>

   </xsd:complexType>

   <xsd:complexType name="GetType">

      <xsd:attribute name="onlineResource" type="xsd:string" use="required"/>

   </xsd:complexType>

   <!-- Available HTTP request methods. -->

   <xsd:complexType name="HTTPType">

      <xsd:choice maxOccurs="unbounded">

         <!-- HTTP request methods.  The onlineResourc attribute

              indicates the URL prefix for HTTP GET requests

              (everything before the question mark and query string:

              http://hostname[:port]/path/scriptname); for HTTP POST

              requests, onlineResource is the complete URL. -->

         <xsd:element name="Get" type="wfs:GetType"/>

         <xsd:element name="Post" type="wfs:PostType"/>

      </xsd:choice>

   </xsd:complexType>

   <!-- The LatLongBoundingBox element is used to indicate the edges of 

        an enclosing rectangle in the SRS of the associated feature type.

        Its purpose is to facilitate geographic searches  by indicating

        where instances of the particular feature type exist.  Since multiple

        LatLongBoundingBoxes can be specified, a WFS can indicate where 

        various clusters of data may exist.  This knowledge aids client 

        applications by letting them know where they should query in order 

        to have a high probability of finding data. -->

   <xsd:complexType name="LatLongBoundingBoxType">

      <xsd:attribute name="minx" type="xsd:string" use="required"/>

      <xsd:attribute name="miny" type="xsd:string" use="required"/>

      <xsd:attribute name="maxx" type="xsd:string" use="required"/>

      <xsd:attribute name="maxy" type="xsd:string" use="required"/>

   </xsd:complexType>

   <!-- A Web Feature Server MAY use zero or more MetadataURL

        elements to offer detailed, standardized metadata about

        the data underneath a particular feature type.  The type

        attribute indicates the standard to which the metadata

        complies; the format attribute indicates how the metadata is

        structured.  Two types are defined at present:

        'TC211' = ISO TC211 19115; 

        'FGDC'  = FGDC CSDGM. -->

   <xsd:complexType name="MetadataURLType">

      <xsd:simpleContent>

         <xsd:extension base="xsd:string">

            <xsd:attribute name="type" use="required">

               <xsd:simpleType>

                  <xsd:restriction base="xsd:NMTOKEN">

                     <xsd:enumeration value="TC211"/>

                     <xsd:enumeration value="FGDC"/>

                  </xsd:restriction>

               </xsd:simpleType>

            </xsd:attribute>

            <xsd:attribute name="format" use="required">

               <xsd:simpleType>

                  <xsd:restriction base="xsd:NMTOKEN">

                     <xsd:enumeration value="XML"/>

                     <xsd:enumeration value="SGML"/>

                     <xsd:enumeration value="TXT"/>

                  </xsd:restriction>

               </xsd:simpleType>

            </xsd:attribute>

         </xsd:extension>

      </xsd:simpleContent>

   </xsd:complexType>

   <xsd:complexType name="OperationsType">

      <xsd:choice maxOccurs="unbounded">

         <xsd:element ref="wfs:Insert"/>

         <xsd:element ref="wfs:Update"/>

         <xsd:element ref="wfs:Delete"/>

         <xsd:element ref="wfs:Query"/>

         <xsd:element ref="wfs:Lock"/>

      </xsd:choice>

   </xsd:complexType>

   <xsd:complexType name="PostType">

      <xsd:attribute name="onlineResource" type="xsd:string" use="required"/>

   </xsd:complexType>

   <!-- The ResultFormatType type defines the output formats that the

        web feature server can generate.  The mandatory format "GML2"

        must always be available.  Individual servers can define

        additional elements representing other output formats. -->

   <xsd:element name="GML2" type="wfs:EmptyType"/>

   <!-- WFS schema isn't enough, so we're adding these in for GeoServer as

        output types, so that our clients can validate their caps docs. -->

   <xsd:element name="GML2-GZIP" type="wfs:EmptyType"/>

   <xsd:element name="SHAPE-ZIP" type="wfs:EmptyType"/>

   <xsd:complexType name="ResultFormatType">

      <xsd:sequence maxOccurs="unbounded">

         <xsd:element ref="wfs:GML2"/>

         <xsd:element ref="wfs:GML2-GZIP" minOccurs="0"/>

         <xsd:element ref="wfs:SHAPE-ZIP" minOccurs="0"/>

      </xsd:sequence>

   </xsd:complexType>

   <!-- The SchemaDescriptionLanguageType type defines the schema languages

        that a feature server is capable of using to describe the schema

        of a feature.  Individual servers can define additional elements

        representing other schema languages but XMLSCHEMA must always

        be defined. -->

   <xsd:element name="XMLSCHEMA" type="wfs:EmptyType"/>

   <xsd:complexType name="SchemaDescriptionLanguageType">

      <xsd:sequence maxOccurs="unbounded">

         <xsd:element ref="wfs:XMLSCHEMA"/>

      </xsd:sequence>

   </xsd:complexType>

   <xsd:complexType name="EmptyType" />

</xsd:schema>