Example usage for javax.xml.bind Binder getXMLNode

Introduction

In this page you can find the example usage for javax.xml.bind Binder getXMLNode.

Prototype

public abstract XmlNode getXMLNode(Object jaxbObject);

Source Link

Document

Gets the XML element associated with the given JAXB object.

Usage

From source file:org.docx4j.XmlUtils.java

/**
 * Fetch DOM node / JAXB object pairs matching an XPath (for example "//w:p").
 * //from  w w w .ja  v  a  2s . c om
 * In JAXB, this association is partial; not all XML elements have associated JAXB objects, 
 * and not all JAXB objects have associated XML elements.  
 * 
 * If the XPath returns an element which isn't associated
 * with a JAXB object, the element's pair will be null.
 * 
 * If you have modified your JAXB objects (eg added or changed a 
 * w:p paragraph), you need to update the association. The problem
 * is that this can only be done ONCE, owing to a bug in JAXB:
 * see https://jaxb.dev.java.net/issues/show_bug.cgi?id=459
 * 
 * So this is left for you to choose to do via the refreshXmlFirst parameter.   
 * 
 * @param binder
 * @param jaxbElement
 * @param xpathExpr
 * @param refreshXmlFirst
 * @return
 * @throws JAXBException
 * @throws XPathBinderAssociationIsPartialException
 * @since 3.0.0
 */
public static List<JAXBAssociation> getJAXBAssociationsForXPath(Binder<Node> binder, Object jaxbElement,
        String xpathExpr, boolean refreshXmlFirst)
        throws JAXBException, XPathBinderAssociationIsPartialException {

    if (binder == null) {
        log.warn("null binder");
    }
    if (jaxbElement == null) {
        log.warn("null jaxbElement");
    }

    Node node;
    if (refreshXmlFirst) {
        node = binder.updateXML(jaxbElement);
    }
    node = binder.getXMLNode(jaxbElement);
    if (node == null) {
        throw new XPathBinderAssociationIsPartialException("binder.getXMLNode returned null");
    }

    //log.debug("XPath will execute against: " + XmlUtils.w3CDomNodeToString(node));

    List<JAXBAssociation> resultList = new ArrayList<JAXBAssociation>();

    for (Node n : xpath(node, xpathExpr)) {
        resultList.add(new JAXBAssociation(n, binder.getJAXBNode(n)));
    }
    return resultList;
}

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