+/*
+ * Copyright 2005-2011 the original author or authors.
+ *
+ * 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.wamblee.xml;
+
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.xpath.XPath;
+import javax.xml.xpath.XPathFactory;
+
+/**
+ * Represents a namespace context and is a factory for creating xpath expressions.
+ * @author Erik Brakkee
+ */
+public class XPathContext {
+ private XPath xpath;
+
+ /**
+ * Constructs the context.
+ * @param aContext Namespaces.
+ */
+ public XPathContext(NamespaceContext aContext) {
+ xpath = XPathFactory.newInstance().newXPath();
+ xpath.setNamespaceContext(aContext);
+ }
+
+ public static XPathContext xpathcontext(NamespaceContext aContext) {
+ return new XPathContext(aContext);
+ }
+
+ /**
+ * Creates the expression.
+ * @param aExpression XPath expression.
+ * @return Xpath expression.
+ * @throws XMLException
+ */
+ public XPathExpression createExpression(String aExpression) throws XMLException {
+ return new XPathExpression(xpath, aExpression);
+ }
+
+ /**
+ * To get access to the lower level API.
+ * @return Lower level API.
+ */
+ public XPath getXpath() {
+ return xpath;
+ }
+}