Examples with ParentAxis org.eclipse.wst.xml.xpath2.processor.internal.ParentAxis used on opensource projects

Example 1 with ParentAxis

use of org.eclipse.wst.xml.xpath2.processor.internal.ParentAxis in project webtools.sourceediting by eclipse.

the class PrecedingAxis method iterate.

// XXX DOCUMENT ORDER.... dunno
/**
 * returns preceding nodes of the context node
 *
 * @param node
 *            is the node type.
 * @throws dc
 *             is the Dynamic context.
 */
public void iterate(NodeType node, ResultBuffer result, Node limitNode) {
    if (limitNode != null && limitNode.isSameNode(node.node_value())) {
        // no further, we have reached the limit node
        return;
    }
    // get the parent
    NodeType parent = null;
    ResultBuffer parentBuffer = new ResultBuffer();
    new ParentAxis().iterate(node, parentBuffer, limitNode);
    if (parentBuffer.size() == 1) {
        parent = (NodeType) parentBuffer.item(0);
        // if we got a parent, we gotta repeat the story for the parent
        // and add the results
        iterate(parent, result, limitNode);
    }
    // get the following siblings of this node, and add them
    PrecedingSiblingAxis psa = new PrecedingSiblingAxis();
    ResultBuffer siblingBuffer = new ResultBuffer();
    psa.iterate(node, siblingBuffer, limitNode);
    // for each sibling, get all its descendants
    DescendantAxis da = new DescendantAxis();
    for (Iterator i = siblingBuffer.iterator(); i.hasNext(); ) {
        result.add((NodeType) i);
        da.iterate((NodeType) i.next(), result, null);
    }
}

Example 2 with ParentAxis

use of org.eclipse.wst.xml.xpath2.processor.internal.ParentAxis in project webtools.sourceediting by eclipse.

the class DefaultEvaluator method visit.

/**
 * visit a reverse step expression
 *
 * @param e
 *            is the reverse step.
 * @return a new function
 */
// XXX unify with top
public Object visit(ReverseStep e) {
    // get context node
    AnyType ci = focus().context_item();
    if (!(ci instanceof NodeType))
        report_error(TypeError.ci_not_node(ci.string_type()));
    NodeType cn = (NodeType) ci;
    // get the nodes on the axis
    ReverseAxis axis = e.iterator();
    ResultBuffer result = new ResultBuffer();
    // short for "gimme da parent"
    if (e.axis() == ReverseStep.DOTDOT) {
        new ParentAxis().iterate(cn, result, _dc.getLimitNode());
        return result.getSequence();
    }
    assert axis != null;
    axis.iterate(cn, result, null);
    // get all nodes in the axis, and principal node
    Pair arg = new Pair(axis.principal_node_kind().string_type(), result.getSequence());
    // do the name test
    _param = arg;
    ResultSequence rs = (ResultSequence) e.node_test().accept(this);
    return rs;
}

Example 3 with ParentAxis

use of org.eclipse.wst.xml.xpath2.processor.internal.ParentAxis in project webtools.sourceediting by eclipse.

the class FollowingAxis method iterate.

/**
 * Return the result of FollowingAxis expression
 *
 * @param node
 *            is the type of node.
 */
public void iterate(NodeType node, ResultBuffer result, Node limitNode) {
    if (limitNode != null && limitNode.isSameNode(node.node_value())) {
        // no further, we have reached the limit node
        return;
    }
    // get the parent
    NodeType parent = null;
    ResultBuffer parentBuffer = new ResultBuffer();
    new ParentAxis().iterate(node, parentBuffer, limitNode);
    if (parentBuffer.size() == 1)
        parent = (NodeType) parentBuffer.item(0);
    // get the following siblings of this node, and add them
    FollowingSiblingAxis fsa = new FollowingSiblingAxis();
    ResultBuffer siblingBuffer = new ResultBuffer();
    fsa.iterate(node, siblingBuffer, limitNode);
    // for each sibling, get all its descendants
    DescendantAxis da = new DescendantAxis();
    for (Iterator i = siblingBuffer.iterator(); i.hasNext(); ) {
        result.add((NodeType) i);
        da.iterate((NodeType) i.next(), result, null);
    }
    // and add the results
    if (parent != null) {
        iterate(parent, result, limitNode);
    }
}