org.apache.xmlbeans.impl.xpath.XPathStep Maven / Gradle / Ivy
/* Copyright 2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xmlbeans.impl.xpath;
import javax.xml.namespace.QName;
class XPathStep {
final boolean _attr;
final boolean _deep;
int _flags;
final QName _name;
XPathStep _next, _prev;
boolean _hasBacktrack;
XPathStep _backtrack;
XPathStep(boolean deep, boolean attr, QName name) {
_name = name;
_deep = deep;
_attr = attr;
int flags = 0;
if (_deep || !_attr) {
flags |= XPathExecutionContext.DESCEND;
}
if (_attr) {
flags |= XPathExecutionContext.ATTRS;
}
_flags = flags;
}
boolean isWild() {
return _name.getLocalPart().length() == 0;
}
boolean match(QName name) {
String local = _name.getLocalPart();
String nameLocal = name.getLocalPart();
int localLength = local.length();
// match any name to _name when _name is empty ""@""
if (localLength == 0) {
String uri = _name.getNamespaceURI();
return uri.isEmpty() || uri.equals(name.getNamespaceURI());
}
if (localLength != nameLocal.length()) {
return false;
}
String uri = _name.getNamespaceURI();
String nameUri = name.getNamespaceURI();
if (uri.length() != nameUri.length()) {
return false;
}
return local.equals(nameLocal) && uri.equals(nameUri);
}
}