Java example source code file (XPointerProcessor.java)

This example Java source code file (XPointerProcessor.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

augmentations, event_element_empty, event_element_end, event_element_start, xmlattributes, xniexception, xpointerprocessor

The XPointerProcessor.java Java example source code

/*
 * reserved comment block
 * DO NOT REMOVE OR ALTER!
 */
/*
 * Copyright 2005 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 com.sun.org.apache.xerces.internal.xpointer;

import com.sun.org.apache.xerces.internal.xni.Augmentations;
import com.sun.org.apache.xerces.internal.xni.QName;
import com.sun.org.apache.xerces.internal.xni.XMLAttributes;
import com.sun.org.apache.xerces.internal.xni.XNIException;

/**
 * <p>
 * The XPointerProcessor is responsible for parsing an XPointer
 * expression and and providing scheme specific resolution of
 * the document fragment pointed to be the pointer.
 * </p>
 *
 * @xerces.internal
 *
 *
 */
public interface XPointerProcessor {

    // The start element event
    public static final int EVENT_ELEMENT_START = 0;

    // The end element event
    public static final int EVENT_ELEMENT_END = 1;

    // The empty element event
    public static final int EVENT_ELEMENT_EMPTY = 2;

    /**
     * Parses an XPointer expression.  It performs scheme specific processing
     * depending on the pointer parts and sets up a Vector of XPointerParts
     * in the order (left-to-right) they appear in the XPointer expression.
     *
     * @param  xpointer A String representing the xpointer expression.
     * @throws XNIException Thrown if the xpointer string does not conform to
     *         the XPointer Framework syntax or the syntax of the pointer part does
     *         not conform to its definition for its scheme.
     *
     */
    public void parseXPointer(String xpointer) throws XNIException;

    /**
     * Evaluates an XML resource with respect to an XPointer expressions
     * by checking if it's element and attributes parameters match the
     * criteria specified in the xpointer expression.
     *
     * @param element - The name of the element.
     * @param attributes - The element attributes.
     * @param augs - Additional information that may include infoset augmentations
     * @param event - An integer indicating
     *                0 - The start of an element
     *                1 - The end of an element
     *                2 - An empty element call
     * @return true if the element was resolved by the xpointer
     * @throws XNIException Thrown to signal an error
     *
     */
    public boolean resolveXPointer(QName element, XMLAttributes attributes,
            Augmentations augs, int event) throws XNIException;

    /**
     * Returns true if the XPointer expression resolves to the current resource fragment
     * or Node which is part of the input resource being streamed else returns false.
     *
     * @return True if the xpointer expression matches a node/fragment in the resource
     *         else returns false.
     * @throws XNIException Thrown to signal an error
     *
     */
    public boolean isFragmentResolved() throws XNIException;

    /**
     * Returns true if the XPointer expression resolves any subresource of the
     * input resource.
     *
     * @return True if the xpointer expression matches a fragment in the resource
     *         else returns false.
     * @throws XNIException Thrown to signal an error
     *
     */
    public boolean isXPointerResolved() throws XNIException;

}