Examples of org.eclipse.persistence.oxm.NamespaceResolver

org.eclipse.persistence.oxm.NamespaceResolver

It is common for an XML document to include one or more namespaces. TopLink supports this using its NamespaceResolver. The namespace resolver maintains pairs of namespace prefixes and URIs. TopLink uses these prefixes in conjunction with the XPath statements you specify on EIS mappings to XML records and XML mappings.
Although TopLink captures namespace prefixes in the XPath statements for mappings (if applicable), the input document is not required to use the same namespace prefixes. TopLink will use the namespace prefixes specified in the mapping when creating new documents.
Code Sample
NamespaceResolver resolver = new NamespaceResolver(); resolver.put( "ns", "urn:namespace-example"); XMLDescriptor descriptor = new XMLDescriptor(); descriptor.setJavaClass(Customer.class); descriptor.setDefaultRootElement("ns:customer"); descriptor.setNamespaceResolver(resolver); XMLDirectMapping mapping = new XMLDirectMapping(); mapping.setAttributeName("id"); mapping.setXPath("ns:id/text()"); descriptor.addMapping(mapping); @see org.eclipse.persistence.oxm.XMLDescriptor @see org.eclipse.persistence.eis.EISDescriptor

        String namespace = schema.getNamespace();
        if(namespace == null) {
            namespace = this.aProcessor.getDefaultTargetNamespace();
        }
        nsInfo.setNamespace(namespace == null ? "" : schema.getNamespace());
        NamespaceResolver nsr = new NamespaceResolver();
        // process XmlNs
        for (XmlNs xmlns : schema.getXmlNs()) {
            nsr.put(xmlns.getPrefix(), xmlns.getNamespaceUri());
        }
        nsInfo.setNamespaceResolver(nsr);
        return nsInfo;
    }

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    }


    public Object get(DatabaseField key) {
        XMLField xmlField = this.convertToXMLField(key);
        XPathFragment lastFragment = xmlField.getLastXPathFragment();
        NamespaceResolver namespaceResolver = xmlField.getNamespaceResolver();
        String namespaceURI = XMLConstants.EMPTY_STRING;
        if (null != namespaceResolver) {
            namespaceURI = namespaceResolver.resolveNamespacePrefix(lastFragment.getPrefix());
            if (null == namespaceURI) {
                namespaceURI = XMLConstants.EMPTY_STRING;
            }
        }
        return attributes.getValue(namespaceURI, lastFragment.getLocalName());

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        String namespace = schema.getNamespace();
        if(namespace == null) {
            namespace = this.aProcessor.getDefaultTargetNamespace();
        }
        nsInfo.setNamespace(namespace == null ? "" : schema.getNamespace());
        NamespaceResolver nsr = new NamespaceResolver();
        // process XmlNs
        for (XmlNs xmlns : schema.getXmlNs()) {
            nsr.put(xmlns.getPrefix(), xmlns.getNamespaceUri());
        }
        nsInfo.setNamespaceResolver(nsr);
        return nsInfo;
    }

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    public String getPrefixForNamespace(Schema schema, String URI) {
      //add Import if necessary
        Schema referencedSchema = this.getSchemaForNamespace(URI);
        addImportIfRequired(schema, referencedSchema, URI);
      
      NamespaceResolver namespaceResolver = schema.getNamespaceResolver();
        Enumeration keys = namespaceResolver.getPrefixes();
        while (keys.hasMoreElements()) {
            String next = (String) keys.nextElement();
            String nextUri = namespaceResolver.resolveNamespacePrefix(next);
            if (nextUri.equals(URI)) {
                return next;
            }
        }
        return null;

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        return schemaType;
    }


    public NamespaceInfo processNamespaceInformation(XmlSchema xmlSchema) {
        NamespaceInfo info = new NamespaceInfo();
        info.setNamespaceResolver(new NamespaceResolver());
        String packageNamespace = null;
        if (xmlSchema != null) {
            String namespaceMapping = xmlSchema.namespace();
            if (!(namespaceMapping.equals(EMPTY_STRING) || namespaceMapping.equals(XMLProcessor.DEFAULT))) {
                packageNamespace = namespaceMapping;

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        return false;
    }


    private Class generateWrapperForMapClass(JavaClass mapClass, JavaClass keyClass, JavaClass valueClass, TypeMappingInfo typeMappingInfo) {
        String packageName = JAXB_DEV;
        NamespaceResolver combinedNamespaceResolver = new NamespaceResolver();
        if (!helper.isBuiltInJavaType(keyClass)) {
            String keyPackageName = keyClass.getPackageName();
            packageName = packageName + DOT_CHR + keyPackageName;
            NamespaceInfo keyNamespaceInfo = getPackageInfoForPackage(keyClass).getNamespaceInfo();
            if (keyNamespaceInfo != null) {
                java.util.Vector<Namespace> namespaces = keyNamespaceInfo.getNamespaceResolver().getNamespaces();
                for (Namespace n : namespaces) {
                    combinedNamespaceResolver.put(n.getPrefix(), n.getNamespaceURI());
                }


            }
        }


        if (!helper.isBuiltInJavaType(valueClass)) {
            String valuePackageName = valueClass.getPackageName();
            packageName = packageName + DOT_CHR + valuePackageName;
            NamespaceInfo valueNamespaceInfo = getPackageInfoForPackage(valueClass).getNamespaceInfo();
            if (valueNamespaceInfo != null) {
                java.util.Vector<Namespace> namespaces = valueNamespaceInfo.getNamespaceResolver().getNamespaces();
                for (Namespace n : namespaces) {
                    combinedNamespaceResolver.put(n.getPrefix(), n.getNamespaceURI());
                }
            }
        }
        String namespace = this.defaultTargetNamespace;
        if (namespace == null) {

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                PackageInfo namespaceInfo = getPackageToPackageInfoMappings().get(packageName);
                if (namespaceInfo == null) {
                    namespaceInfo = new PackageInfo();
                    namespaceInfo.setNamespaceInfo(new NamespaceInfo());
                    namespaceInfo.setNamespace(ARRAY_NAMESPACE);
                    namespaceInfo.setNamespaceResolver(new NamespaceResolver());
                    getPackageToPackageInfoMappings().put(packageName, namespaceInfo);
                }
            } else {
                PackageInfo namespaceInfo = getPackageInfoForPackage(componentClass.getPackage(), componentClass.getPackageName());
                getPackageToPackageInfoMappings().put(packageName, namespaceInfo);

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            if (componentNamespaceInfo != null) {
                packageInfo = componentNamespaceInfo;
            } else {
                packageInfo = new PackageInfo();
                packageInfo.setNamespaceInfo(new NamespaceInfo());
                packageInfo.setNamespaceResolver(new NamespaceResolver());
            }
            getPackageToPackageInfoMappings().put(packageName, packageInfo);
        }


        String name = componentClass.getName();

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                        DEFAULT_SIMPLE_XML_TAG + "/attachment");
                    mapping.setSwaRef(true);
                    mapping.setShouldInlineBinaryData(false);
                    mapping.setMimeType(attachment.getMimeType());
                    descriptor.addMapping(mapping);
                    NamespaceResolver nr = new NamespaceResolver();
                    descriptor.setNamespaceResolver(nr);
                    oxSession.getProject().addDescriptor(descriptor);
                    ((DatabaseSessionImpl)oxSession)
                        .initializeDescriptorIfSessionAlive(descriptor);
                    xrService.getXMLContext().storeXMLDescriptorByQName(descriptor);

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            descriptor.setJavaClass(ValueObject.class);
            XMLDirectMapping mapping = new XMLDirectMapping();
            mapping.setAttributeName("value");
            mapping.setXPath("value");
            descriptor.addMapping(mapping);
            NamespaceResolver nr = new NamespaceResolver();
            descriptor.setNamespaceResolver(nr);
            oxSession.getProject().addDescriptor(descriptor);
            ((DatabaseSessionImpl)oxSession)
                .initializeDescriptorIfSessionAlive(descriptor);
            xrService.getXMLContext().storeXMLDescriptorByQName(descriptor);

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