Example usage for org.apache.commons.jxpath.ri.model NodeIterator setPosition

Introduction

In this page you can find the example usage for org.apache.commons.jxpath.ri.model NodeIterator setPosition.

Prototype

boolean setPosition(int position);

Source Link

Document

Set the new current position.

Usage

From source file:org.eclipse.e4.emf.internal.xpath.CollectionNodeIterator.java

/**
 * Prepare...//from   w w  w.  ja  v a2  s.c  o m
 */
private void prepare() {
    collection = new ArrayList<>();
    NodePointer ptr = (NodePointer) pointer.clone();
    int length = ptr.getLength();
    for (int i = 0; i < length; i++) {
        ptr.setIndex(i);
        NodePointer elementPointer = ptr.getValuePointer();
        NodeIterator iter = getElementNodeIterator(elementPointer);

        for (int j = 1; iter.setPosition(j); j++) {
            NodePointer childPointer = iter.getNodePointer();
            if (reverse) {
                collection.add(0, childPointer);
            } else {
                collection.add(childPointer);
            }
        }
    }
    if (startWith != null) {
        int index = collection.indexOf(startWith);
        if (index == -1) {
            throw new JXPathException("Invalid starting pointer for iterator: " + startWith);
        }
        while (collection.size() > index) {
            if (!reverse) {
                collection.remove(collection.size() - 1);
            } else {
                collection.remove(0);
            }
        }
    }
}

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From source file:org.firesoa.common.jxpath.model.dom4j.Dom4JNodePointer.java

public NodePointer createChild(JXPathContext context, QName name, int index) {
    if (index == WHOLE_COLLECTION) {
        index = 0;/*from   w ww.j a v a  2s  . c om*/
    }
    boolean success = getAbstractFactory(context).createObject(context, this, node, name.toString(), index);
    if (success) {
        NodeTest nodeTest;
        String prefix = name.getPrefix();
        String namespaceURI = prefix == null ? null : context.getNamespaceURI(prefix);
        nodeTest = new NodeNameTest(name, namespaceURI);

        NodeIterator it = childIterator(nodeTest, false, null);
        if (it != null && it.setPosition(index + 1)) {
            return it.getNodePointer();
        }
    }
    throw new JXPathAbstractFactoryException("Factory could not create " + "a child node for path: " + asPath()
            + "/" + name + "[" + (index + 1) + "]");
}

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From source file:org.firesoa.common.jxpath.model.dom4j.Dom4JNodePointer.java

/**
 * ??nameattribute//  w  w  w.j av a 2 s .  c  o m
 */
public NodePointer createAttribute(JXPathContext context, QName name) {
    if (!(node instanceof Element)) {
        return super.createAttribute(context, name);
    }
    Element element = (Element) node;
    String prefix = name.getPrefix();
    if (prefix != null) {
        String nsUri = null;
        NamespaceResolver nsr = getNamespaceResolver();
        if (nsr != null) {
            nsUri = nsr.getNamespaceURI(prefix);
        }
        if (nsUri == null) {
            throw new JXPathException("Unknown namespace prefix: " + prefix);
        }
        Namespace dom4jNs = Namespace.get(prefix, nsUri);
        org.dom4j.QName attributeName = new org.dom4j.QName(name.getName(), dom4jNs);
        Attribute attr = element.attribute(attributeName);
        if (attr == null) {
            element.addAttribute(attributeName, "");
        }
    } else {
        Attribute attr = element.attribute(name.getName());
        if (attr == null) {
            element.addAttribute(name.getName(), "");
        }
    }
    NodeIterator it = attributeIterator(name);
    it.setPosition(1);
    return it.getNodePointer();
}

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