// pass to select, from, where, ...
node.childrenAccept(this, root);
// use //* if no path has been set
PathQueryNode pathNode = root.getLocationNode();
pathNode.setAbsolute(true);
if (pathConstraints.size() == 0)
{
LocationStepQueryNode step = factory.createLocationStepQueryNode(pathNode);
step.setNameTest(null);
step.setIncludeDescendants(true);
pathNode.addPathStep(step);
}
else
{
try
{
while (pathConstraints.size() > 1)
{
// merge path nodes
MergingPathQueryNode path = null;
for (Iterator it = pathConstraints.iterator(); it.hasNext();)
{
path = (MergingPathQueryNode)it.next();
if (path.needsMerge())
{
break;
}
else
{
path = null;
}
}
if (path == null)
{
throw new IllegalArgumentException("Invalid combination of jcr:path clauses");
}
else
{
pathConstraints.remove(path);
MergingPathQueryNode[] paths =
(MergingPathQueryNode[])pathConstraints.toArray(new MergingPathQueryNode[pathConstraints.size()]);
paths = path.doMerge(paths);
pathConstraints.clear();
pathConstraints.addAll(Arrays.asList(paths));
}
}
}
catch (NoSuchElementException e)
{
throw new IllegalArgumentException("Invalid combination of jcr:path clauses");
}
MergingPathQueryNode path = (MergingPathQueryNode)pathConstraints.get(0);
LocationStepQueryNode[] steps = path.getPathSteps();
for (int i = 0; i < steps.length; i++)
{
LocationStepQueryNode step = factory.createLocationStepQueryNode(pathNode);
step.setNameTest(steps[i].getNameTest());
step.setIncludeDescendants(steps[i].getIncludeDescendants());
step.setIndex(steps[i].getIndex());
pathNode.addPathStep(step);
}
}
if (constraintNode.getNumOperands() == 1)
{
// attach operand to last path step
LocationStepQueryNode[] steps = pathNode.getPathSteps();
steps[steps.length - 1].addPredicate(constraintNode.getOperands()[0]);
}
else if (constraintNode.getNumOperands() > 1)
{
// attach constraint to last path step
LocationStepQueryNode[] steps = pathNode.getPathSteps();
steps[steps.length - 1].addPredicate(constraintNode);
}
if (nodeTypeName != null)
{
// add node type constraint
LocationStepQueryNode[] steps = pathNode.getPathSteps();
NodeTypeQueryNode nodeType = factory.createNodeTypeQueryNode(steps[steps.length - 1], nodeTypeName);
steps[steps.length - 1].addPredicate(nodeType);
}
return root;