Examples of org.eclipse.persistence.oxm.XMLField

org.eclipse.persistence.oxm.XMLField

3.org/2001/XMLSchema"> -->

XML Schema
<?xml version="1.0" encoding="UTF-8"?> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <xsd:element name="customer" type="customer-type"/> <xsd:complexType name="customer-type"> <xsd:sequence> <xsd:element name="picture" type="xsd:hexBinary"/> <xsd:element name="resume" type="xsd:base64Binary"/> </xsd:sequence> </xsd:complexType> </xsd:schema>

Code Sample
XMLField pictureField = new XMLField("picture/text()") pictureField.setSchemaType(XMLConstants.HEX_BINARY_QNAME);

Setting custom conversion pairs: By default in TopLink XML built-in schema types are associated with java classes and vice versa. These default pairs can be modified by the user using the addJavaConversion and addXMLConversion api. For example by default a java.util.Calendar is mapped to the dateTime schema type so the XML will be formated based on that type. Below are the default schema type to java type conversion pairs and the default java type to schema type conversion pairs.

XML schema type to Java type default conversion pairs

Schema Type	Java Type
base64Binary	byte[]
boolean	boolean
byte	byte
date	java.util.Calendar
dateTime	java.util.Calendar
decimal	java.math.BigDecimal
double	double
float	float
hexBinary	byte[]
int	int
integer	java.math.BigInteger
long	long
QName	javax.xml.namespace.QName
time	java.util.Calendar
unsignedByte	short
unsignedInt	long
unsignedShort	int
anySimpleType	java.lang.String

Java type to XML schema type default conversion pairs

Java Type	Schema Type
byte[]	hexBinary
java.lang.Byte[]	hexBinary
java.math.BigDecimal	decimal
java.math.BigInteger	integer
boolean	boolean
java.lang.Boolean	boolean
java.lang.Byte	Byte
byte	byte
java.util.Calendar	dateTime
java.util.GregorianCalendar	dateTime
double	double
java.lang.Double	double
float	float
java.lang.Float	float
int	int
java.lang.Integer	int
long	long
java.lang.Long	long
short	short
java.lang.Short	short
javax.xml.namespace.QName	QName
java.lang.String	string

@see org.eclipse.persistence.oxm.XMLUnionField

    /**
     * INTERNAL:
     * Given a DatabaseField, return the corresponding values from the document
     */
    public Object getValuesIndicatingNoEntry(DatabaseField key, boolean shouldReturnNodes) {
        XMLField field = convertToXMLField(key);
        NodeList nodeList = UnmarshalXPathEngine.getInstance().selectNodes(dom, field, field.getNamespaceResolver());


        // If a node was not found return null
        if (null == nodeList) {
            return null;
        }
        int resultSize = nodeList.getLength();
        Vector result = new Vector(resultSize);
        if (resultSize == 0) {
            return result;
        }
        if(shouldReturnNodes) {
            //just copy all the nodes into the result vector and return it
            for(int i = 0; i < resultSize; i++) {
                result.add(nodeList.item(i));
            }
            return result;
        }
        // Assumption:  NodeList contains nodes of the same type
        Node firstNode = nodeList.item(0);
        if ((firstNode == null) || (firstNode.getNodeType() != Node.ELEMENT_NODE)) {
            if (field.usesSingleNode() && (resultSize == 1)) {
                Node next = nodeList.item(0);
                if (next == null) {
                    result.add(null);
                } else {
                    Vector list = new Vector();

View Full Code Here

    * Set the field value into the DOM.
    * The field name must be a valid simple XPath expression.
    */
    public Object put(DatabaseField key, Object value) {
        // Value may be a direct value, nested record, or collection of values.
        XMLField field = convertToXMLField(key);
        Object nodeValue = convertToNodeValue(value);
        NodeList replaced = null;
        boolean isEmptyCollection = false;
        if (nodeValue instanceof Collection) {
            isEmptyCollection = ((Collection)nodeValue).size() == 0; 
            replaced = XPathEngine.getInstance().replaceCollection(convertToXMLField(key), dom, (Collection)nodeValue, session);
        } else {
            replaced = XPathEngine.getInstance().replaceValue(convertToXMLField(key), dom, nodeValue, session);
        }
        if (replaced.getLength() == 0) {
            // Replace does nothing if the node did not exist, return no nodes.
            XPathEngine.getInstance().create(convertToXMLField(key), dom, nodeValue, lastUpdatedField, getDocPresPolicy(), session);
        } else if (replaced.item(0) == getDOM()) {
            // If the root element/record element was changed must update the record's reference.
            setDOM(getDocument().getDocumentElement());
        }
        if(!field.getXPathFragment().isAttribute() && !field.getXPathFragment().nameIsText()) {
            if(value != null && !isEmptyCollection) {
                this.lastUpdatedField = field;
            }
        }
        return replaced;

View Full Code Here

            }
        }
    }


    public void writeSingleValue(Object element, Object parent, XMLRecord row, AbstractSession session) {
        XMLField xmlRootField = null;
        Object originalObject = element;
        DOMRecord record = (DOMRecord) row;
        Node root = record.getDOM();
        org.w3c.dom.Document doc = row.getDocument();
        boolean wasXMLRoot = false;


        if (usesXMLRoot() && (element instanceof XMLRoot)) {
            wasXMLRoot = true;
            xmlRootField = new XMLField();
            XPathFragment frag = new XPathFragment();
            if ((((XMLRoot) element)).getRootFragment().getNamespaceURI() != null) {
                frag.setNamespaceURI(((XMLRoot) element).getNamespaceURI());
            } else {
                frag.setXPath(((XMLRoot) element).getLocalName());
            }
            xmlRootField.setXPathFragment(frag);


            xmlRootField.setNamespaceResolver(row.getNamespaceResolver());
            element = ((XMLRoot) element).getObject();
        }
        if (element instanceof String) {
            writeSimpleValue(xmlRootField, element, originalObject, record, doc, root, wasXMLRoot, session);
        } else if (element instanceof org.w3c.dom.Node) {
            Node importedCopy = doc.importNode((Node) element, true);
            root.appendChild(importedCopy);
        } else {
            XMLDescriptor referenceDescriptor = (XMLDescriptor) session.getDescriptor(element.getClass());
            if (referenceDescriptor == null) {
                writeSimpleValue(xmlRootField, element, originalObject, record, doc, root, wasXMLRoot, session);
                return;
            }
            if (wasXMLRoot) {
                if (((XMLRoot) originalObject).getRootFragment().getNamespaceURI() != null) {
                    String prefix = referenceDescriptor.getNonNullNamespaceResolver().resolveNamespaceURI(((XMLRoot) originalObject).getNamespaceURI());
                    if ((prefix == null) || prefix.equals("")) {
                        prefix = record.getNamespaceResolver().resolveNamespaceURI(((XMLRoot) originalObject).getRootFragment().getNamespaceURI());
                    }
                    if ((prefix == null) || prefix.equals("")) {
                        xmlRootField.getXPathFragment().setGeneratedPrefix(true);
                        prefix = record.getNamespaceResolver().generatePrefix();
                    }
                    xmlRootField.getXPathFragment().setXPath(prefix + ":" + ((XMLRoot) originalObject).getLocalName());
                }
            }


            DOMRecord nestedRecord = (DOMRecord) buildCompositeRow(element, session, referenceDescriptor, row, xmlRootField, originalObject, wasXMLRoot);
            if (nestedRecord != null) {

View Full Code Here

    private boolean isUnmappedContent(Node node) {
        if (!areOtherMappingInThisContext) {
            return true;
        }
        XMLDescriptor parentDesc = (XMLDescriptor) this.getDescriptor();
        XMLField field = (XMLField) this.getField();
        Iterator mappings = parentDesc.getMappings().iterator();
        int mappingsInContext = 0;
        while (mappings.hasNext()) {
            DatabaseMapping next = (DatabaseMapping) mappings.next();
            if (!(next == this)) {
                XMLField nextField = (XMLField) next.getField();
                XPathFragment frag = getFragmentToCompare(nextField, field);
                if (frag != null) {
                    mappingsInContext++;
                    if (((node.getNodeType() == Node.TEXT_NODE) || (node.getNodeType() == Node.CDATA_SECTION_NODE)) && frag.nameIsText()) {
                        return false;

View Full Code Here

        if (xsiPrefix == null) {
            xsiPrefix = ((XMLDescriptor) descriptor).getNonNullNamespaceResolver().generatePrefix(XMLConstants.SCHEMA_INSTANCE_PREFIX);
            generated = true;
            writeXsiNamespace(theNode, xsiPrefix);
        }
        XMLField xmlField = (XMLField) descriptor.buildField("@" + xsiPrefix + ":" + XMLConstants.SCHEMA_TYPE_ATTRIBUTE);
        if (generated) {
            xmlField.getLastXPathFragment().setGeneratedPrefix(true);
        }
        xmlField.getLastXPathFragment().setNamespaceURI(XMLConstants.SCHEMA_INSTANCE_URL);
        XPathEngine.getInstance().create(xmlField, theNode, typeValue, session);
    }

View Full Code Here

    public void iterate(DescriptorIterator iterator) {
        throw DescriptorException.invalidMappingOperation(this, "iterate");
    }


    public void setXPath(String xpath) {
        this.field = new XMLField(xpath);
    }

View Full Code Here

        if (field != null) {
            root = XPathEngine.getInstance().create((XMLField) getField(), root, session);
        }
        org.w3c.dom.Document doc = record.getDocument();


        XMLField xmlRootField = null;
        boolean wasXMLRoot = false;
        Object originalObject = objectValue;
        Node toReplace = getNodeToReplace(root);
        if (usesXMLRoot() && (objectValue instanceof XMLRoot)) {
            xmlRootField = new XMLField();
            wasXMLRoot = true;
            XPathFragment frag = new XPathFragment();
            if ((((XMLRoot) objectValue)).getRootFragment().getNamespaceURI() != null) {
                frag.setNamespaceURI(((XMLRoot) objectValue).getNamespaceURI());
            } else {
                frag.setXPath(((XMLRoot) objectValue).getLocalName());
            }


            xmlRootField.setXPathFragment((((XMLRoot) objectValue)).getRootFragment());
            xmlRootField.setNamespaceResolver(row.getNamespaceResolver());


            objectValue = ((XMLRoot) objectValue).getObject();
        }
        if (objectValue instanceof String) {
            writeSimpleValue(xmlRootField, record, session, originalObject, objectValue, root, toReplace, wasXMLRoot);
        } else {
            XMLDescriptor referenceDescriptor = (XMLDescriptor) session.getDescriptor(objectValue.getClass());
            if (referenceDescriptor == null) {
                writeSimpleValue(xmlRootField, record, session, originalObject, objectValue, root, toReplace, wasXMLRoot);
                return;
            }
            if (wasXMLRoot) {
                if (((XMLRoot) originalObject).getRootFragment().getNamespaceURI() != null) {
                    String prefix = referenceDescriptor.getNonNullNamespaceResolver().resolveNamespaceURI(((XMLRoot) originalObject).getNamespaceURI());
                    if ((prefix == null) || prefix.equals("")) {
                        prefix = row.getNamespaceResolver().resolveNamespaceURI(((XMLRoot) originalObject).getRootFragment().getNamespaceURI());
                    }
                    if ((prefix == null) || prefix.equals("")) {
                        xmlRootField.getXPathFragment().setGeneratedPrefix(true);
                        prefix = row.getNamespaceResolver().generatePrefix();
                    }
                    xmlRootField.getXPathFragment().setXPath(prefix + ":" + ((XMLRoot) originalObject).getLocalName());
                }
            }


            DOMRecord nestedRecord = (DOMRecord) buildCompositeRow(objectValue, session, referenceDescriptor, row, xmlRootField, originalObject, wasXMLRoot);

View Full Code Here

    private boolean isUnmappedContent(Node node) {
        if (!areOtherMappingInThisContext) {
            return true;
        }
        XMLDescriptor parentDesc = (XMLDescriptor) this.getDescriptor();
        XMLField field = (XMLField) this.getField();
        Iterator mappings = parentDesc.getMappings().iterator();
        int mappingsInContext = 0;
        while (mappings.hasNext()) {
            DatabaseMapping next = (DatabaseMapping) mappings.next();
            if (!(next == this)) {
                XMLField nextField = (XMLField) next.getField();
                XPathFragment frag = getFragmentToCompare(nextField, field);
                if (frag != null) {
                    mappingsInContext++;
                    if (((node.getNodeType() == Node.TEXT_NODE) || (node.getNodeType() == Node.CDATA_SECTION_NODE)) && frag.nameIsText()) {
                        return false;

View Full Code Here

        if (xsiPrefix == null) {
            xsiPrefix = ((XMLDescriptor) descriptor).getNonNullNamespaceResolver().generatePrefix(XMLConstants.SCHEMA_INSTANCE_PREFIX);
            generated = true;
            writeXsiNamespace(theNode, xsiPrefix);
        }
        XMLField xmlField = (XMLField) descriptor.buildField("@" + xsiPrefix + ":" + XMLConstants.SCHEMA_TYPE_ATTRIBUTE);
        if (generated) {
            xmlField.getLastXPathFragment().setGeneratedPrefix(true);
        }
        xmlField.getLastXPathFragment().setNamespaceURI(XMLConstants.SCHEMA_INSTANCE_URL);
        XPathEngine.getInstance().create(xmlField, theNode, typeValue, session);
    }

View Full Code Here

     * 
     * @param srcXPath
     * @param tgtXPath
     */
    public void addSourceToTargetKeyFieldAssociation(String srcXPath, String tgtXPath) {
        XMLField srcFld = new XMLField(srcXPath);
        sourceToTargetKeys.add(srcFld);
        sourceToTargetKeyFieldAssociations.put(srcFld, new XMLField(tgtXPath));
    }

View Full Code Here

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