/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.wfs.bindings;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.xml.namespace.QName;
import net.opengis.wfs.QueryType;
import net.opengis.wfs.WfsFactory;
import org.eclipse.emf.ecore.EObject;
import org.geotools.wfs.WFS;
import org.geotools.xml.AbstractComplexEMFBinding;
/**
* Binding object for the type http://www.opengis.net/wfs:QueryType.
*
* <p>
*
* <pre>
* <code>
* <xsd:complexType name="QueryType">
* <xsd:annotation>
* <xsd:documentation>
* The Query element is of type QueryType.
* </xsd:documentation>
* </xsd:annotation>
* <xsd:sequence>
* <xsd:choice maxOccurs="unbounded" minOccurs="0">
* <xsd:element ref="wfs:PropertyName">
* <xsd:annotation>
* <xsd:documentation>
* The Property element is used to specify one or more
* properties of a feature whose values are to be retrieved
* by a Web Feature Service.
* While a Web Feature Service should endeavour to satisfy
* the exact request specified, in some instance this may
* not be possible. Specifically, a Web Feature Service
* must generate a valid GML3 response to a Query operation.
* The schema used to generate the output may include
* properties that are mandatory. In order that the output
* validates, these mandatory properties must be specified
* in the request. If they are not, a Web Feature Service
* may add them automatically to the Query before processing
* it. Thus a client application should, in general, be
* prepared to receive more properties than it requested.
* Of course, using the DescribeFeatureType request, a client
* application can determine which properties are mandatory
* and request them in the first place.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:element>
* <xsd:element ref="wfs:XlinkPropertyName"/>
* <xsd:element ref="ogc:Function">
* <xsd:annotation>
* <xsd:documentation>
* A function may be used as a select item in a query.
* However, if a function is used, care must be taken
* to ensure that the result type matches the type in the
* </xsd:documentation>
* </xsd:annotation>
* </xsd:element>
* </xsd:choice>
* <xsd:element maxOccurs="1" minOccurs="0" ref="ogc:Filter">
* <xsd:annotation>
* <xsd:documentation>
* The Filter element is used to define spatial and/or non-spatial
* constraints on query. Spatial constrains use GML3 to specify
* the constraining geometry. A full description of the Filter
* element can be found in the Filter Encoding Implementation
* Specification.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:element>
* <xsd:element maxOccurs="1" minOccurs="0" ref="ogc:SortBy">
* <xsd:annotation>
* <xsd:documentation>
* The SortBy element is used specify property names whose
* values should be used to order (upon presentation) the
* set of feature instances that satisfy the query.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:element>
* </xsd:sequence>
* <xsd:attribute name="handle" type="xsd:string" use="optional">
* <xsd:annotation>
* <xsd:documentation>
* The handle attribute allows a client application
* to assign a client-generated identifier for the
* Query. The handle is included to facilitate error
* reporting. If one Query in a GetFeature request
* causes an exception, a WFS may report the handle
* to indicate which query element failed. If the a
* handle is not present, the WFS may use other means
* to localize the error (e.g. line numbers).
* </xsd:documentation>
* </xsd:annotation>
* </xsd:attribute>
* <xsd:attribute name="typeName" type="wfs:TypeNameListType" use="required">
* <xsd:annotation>
* <xsd:documentation>
* The typeName attribute is a list of one or more
* feature type names that indicate which types
* of feature instances should be included in the
* reponse set. Specifying more than one typename
* indicates that a join operation is being performed.
* All the names in the typeName list must be valid
* types that belong to this query's feature content
* as defined by the GML Application Schema.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:attribute>
* <xsd:attribute name="featureVersion" type="xsd:string" use="optional">
* <xsd:annotation>
* <xsd:documentation>
* For systems that implement versioning, the featureVersion
* attribute is used to specify which version of a particular
* feature instance is to be retrieved. A value of ALL means
* that all versions should be retrieved. An integer value
* 'i', means that the ith version should be retrieve if it
* exists or the most recent version otherwise.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:attribute>
* <xsd:attribute name="srsName" type="xsd:anyURI" use="optional">
* <xsd:annotation>
* <xsd:documentation>
* This attribute is used to specify a specific WFS-supported SRS
* that should be used for returned feature geometries. The value
* may be the WFS StorageSRS value, DefaultRetrievalSRS value, or
* one of AdditionalSRS values. If no srsName value is supplied,
* then the features will be returned using either the
* DefaultRetrievalSRS, if specified, and StorageSRS otherwise.
* For feature types with no spatial properties, this attribute
* must not be specified or ignored if it is specified.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:attribute>
* </xsd:complexType>
* </code>
* </pre>
*
* </p>
*
* @generated
*
* @source $URL$
*/
@SuppressWarnings( { "nls", "unchecked" })
public class QueryTypeBinding extends AbstractComplexEMFBinding {
public QueryTypeBinding(WfsFactory factory) {
super(factory);
}
/**
* @generated
*/
public QName getTarget() {
return WFS.QueryType;
}
/**
* Overrides to return the value of the "typeName" attribute as a single String instead of a
* List. Otherwise typeName gets encoded as the {@link QueryType#getTypeName()} toString's value
* which depends on the toString implementation of the internal java.util.List.
* <p>
* Also, if the requested property is "SortBy" and the QueryType has an empty sortby list,
* returns null to avoid encoding an empty sortBy list
* </p>
*/
@Override
public Object getProperty(Object object, QName name) throws Exception {
if ("typeName".equals(name.getLocalPart())) {
QueryType query = (QueryType) object;
List typeName = query.getTypeName();
StringBuilder typeNameList = new StringBuilder();
if (typeName != null) {
for (Iterator it = typeName.iterator(); it.hasNext();) {
Object o = it.next();
if (o instanceof QName) {
QName qName = (QName) o;
o = qName.getPrefix() + ":" + qName.getLocalPart();
}
typeNameList.append(o);
if (it.hasNext()) {
typeNameList.append(",");
}
}
}
return typeNameList.toString();
} else if ("SortBy".equals(name.getLocalPart())) {
QueryType query = (QueryType) object;
List sortBy = query.getSortBy();
if (sortBy != null && sortBy.size() == 0) {
return null;
}
}
return super.getProperty(object, name);
}
@Override
protected void setProperty(EObject eObject, String property, Object value, boolean lax) {
if ("typeName".equals(property)) {
QueryType query = (QueryType) eObject;
if (query.getTypeName() == null) {
query.setTypeName(new ArrayList());
}
}
super.setProperty(eObject, property, value, lax);
}
}