/**
* Method discard.
*
* @param element
* @throws OMException
*/
public void discard(OMElement element) throws OMException {
if (element.isComplete() || !cache) {
throw new OMException();
}
try {
// We simply cannot use the parser instance from the builder for this case
// it is not safe to assume that the parser inside the builder will be in
// sync with the parser of the element in question
// Note 1 - however calling getXMLStreamReaderWithoutCaching sets off two flags
// the cache flag for this builder and the parserAccessed flag. These flags will be
// reset later in this procedure
int event = 0;
XMLStreamReader elementParser = element.getXMLStreamReaderWithoutCaching();
do {
event = elementParser.next();
} while (!(event == XMLStreamConstants.END_ELEMENT
&& element.getLocalName().equals(elementParser.getLocalName())));
// at this point we are safely at the end_element event of the element we discarded
lastNode = element.getPreviousOMSibling();
// resetting the flags - see Note 1 above
cache = true;
parserAccessed = false;
if (lastNode != null) {
// if the last node is not an element, we are in trouble because leaf nodes
// (such as text) cannot build themselves. worst the lastchild of the
// currentparent is still the removed node! we have to correct it
OMContainerEx ex = ((OMContainerEx) lastNode.getParent());
ex.setLastChild(lastNode);
if (!(lastNode instanceof OMContainerEx)) {
ex.buildNext();
} else {
((OMNodeEx) lastNode).setNextOMSibling(null);
}
} else {
OMElement parent = (OMElement) element.getParent();
if (parent == null) {
throw new OMException();
}
((OMContainerEx) parent).setFirstChild(null);
lastNode = parent;
}
} catch (OMException e) {
throw e;
} catch (Exception e) {
throw new OMException(e);
}
// when an element is discarded the element index that was incremented
// at creation needs to be decremented !
elementLevel--;
}
public OMText createOMText(OMContainer parent, String text, int type) {
OMText textNode = createOMText(parent, text);
((OMNodeEx) textNode).setType(type);
return textNode;
}