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


    private String getURIForPrefix(String prefix) {
        String uri = null;


        for (int i = namespaceResolvers.size() - 1; i >= 0; i--) {
            NamespaceResolver next = (NamespaceResolver) namespaceResolvers.get(i);
            uri = next.resolveNamespacePrefix(prefix);
            if ((uri != null) && !uri.equals(SDOConstants.EMPTY_STRING)) {
                break;
            }
        }

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        return setting;
    }


    private Setting convertToSetting(DatabaseMapping mapping, Object value) {
        XMLDescriptor xmlDescriptor = (XMLDescriptor) mapping.getDescriptor();
        NamespaceResolver nsResolver = xmlDescriptor.getNamespaceResolver();
        Setting rootSetting = new Setting();
        XMLField xmlField = (XMLField) mapping.getField();
        if (xmlField == null) {
            if (mapping instanceof XMLObjectReferenceMapping) {
                xmlField = (XMLField) ((XMLObjectReferenceMapping) mapping).getFields().get(0);

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    private boolean xmlDeclaration;
    private NamespaceResolver namespaceResolver;


    public SDOXMLDocument() {
        xmlDeclaration = true;
        namespaceResolver = new NamespaceResolver();
    }

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        addDescriptor(buildInstantiationCopyPolicyDescriptor());
        
        addDescriptor(buildPropertyDescriptor());


        // Set the name spaces on all descriptors.
        NamespaceResolver namespaceResolver = new NamespaceResolver();
        namespaceResolver.put("xsi", "http://www.w3.org/2001/XMLSchema-instance");
        //namespaceResolver.put("xsd", "http://www.w3.org/2001/XMLSchema");
        namespaceResolver.put("orm", ormNamespace);


        for (XMLDescriptor descriptor : (Collection<XMLDescriptor>) getDescriptors().values()) {
            descriptor.setNamespaceResolver(namespaceResolver);
        }

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    /**
     * Create a new row/record for the object builder with the given name. This
     * allows subclasses to define different record types.
     */
    public AbstractRecord createRecord(String rootName, AbstractSession session) {
        NamespaceResolver namespaceResolver = getNamespaceResolver();
        XMLRecord xmlRec = new DOMRecord(rootName, namespaceResolver);
        xmlRec.setSession(session);
        return xmlRec;
    }

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    /**
     * Create a new row/record for the object builder with the given name. This
     * allows subclasses to define different record types.
     */
    public AbstractRecord createRecord(String rootName, Node parent, AbstractSession session) {
        NamespaceResolver namespaceResolver = getNamespaceResolver();
        XMLRecord xmlRec = new DOMRecord(rootName, namespaceResolver, parent);
        xmlRec.setSession(session);
        return xmlRec;
    }

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     * Create a new row/record for the object builder. This allows subclasses to
     * define different record types.  This will typically be called when a 
     * record will be used for temporarily holding on to primary key fields.
     */
    protected AbstractRecord createRecordForPKExtraction(int size, AbstractSession session) {
        NamespaceResolver namespaceResolver = getNamespaceResolver();
        XMLRecord xmlRec = new DOMRecord(getDescriptor().getTableName(), namespaceResolver);
        xmlRec.setSession(session);
        return xmlRec;
    }

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            DatabaseMapping mapping = (DatabaseMapping)mappings.get(index);
            mapping.writeFromObjectIntoRow(object, row, session);
        }
    }
    public void addNamespaceDeclarations(Document document) {
        NamespaceResolver namespaceResolver = getNamespaceResolver();


        if (namespaceResolver == null) {
            return;
        }


        Element docElement = document.getDocumentElement();
        if(namespaceResolver.getDefaultNamespaceURI() != null) {
            docElement.setAttributeNS(XMLConstants.XMLNS_URL, XMLConstants.XMLNS, namespaceResolver.getDefaultNamespaceURI());
        }


        Enumeration prefixes = namespaceResolver.getPrefixes();
        String prefix;
        String namespace;
        while (prefixes.hasMoreElements()) {
            prefix = (String)prefixes.nextElement();
            namespace = namespaceResolver.resolveNamespacePrefix(prefix);
            docElement.setAttributeNS(XMLConstants.XMLNS_URL, XMLConstants.XMLNS + ":" + prefix, namespace);
        }
    }

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            ((Element)nestedRecord.getDOM()).setAttributeNS(XMLConstants.XMLNS_URL, XMLConstants.XMLNS + ":" + xsiPrefix, XMLConstants.SCHEMA_INSTANCE_URL);
        }
    }


    public NamespaceResolver getNamespaceResolver() {
        NamespaceResolver namespaceResolver = null;
        if (isXmlDescriptor()) {
            namespaceResolver = ((XMLDescriptor)getDescriptor()).getNamespaceResolver();
        } else if (getDescriptor() instanceof org.eclipse.persistence.eis.EISDescriptor) {
            namespaceResolver = ((org.eclipse.persistence.eis.EISDescriptor)getDescriptor()).getNamespaceResolver();
        }

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     * @param qualifiedTableName
     * @return
     */
    protected QName getDefaultRootElementAsQName(XMLDescriptor desc, String qualifiedTableName) {
        QName qName = null;
        NamespaceResolver nsResolver = desc.getNamespaceResolver();
        int idx = qualifiedTableName.indexOf(COLON);
        String localName = qualifiedTableName.substring(idx + 1);
        if (idx > -1) {
            String prefix = qualifiedTableName.substring(0, idx);
            String uri = nsResolver.resolveNamespacePrefix(prefix);
            qName = new QName(uri, localName);
        } else {
            if (nsResolver.getDefaultNamespaceURI() != null) {
                qName = new QName(nsResolver.getDefaultNamespaceURI(), localName);
            } else {
                qName = new QName(localName);
            }
        }
        return qName;

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