1 /*
   2  * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /**
  27  *
  28  * Provides the classes for implementing
  29  * <a href="https://www.oasis-open.org/committees/download.php/14809/xml-catalogs.html">
  30  *     XML Catalogs OASIS Standard V1.1, 7 October 2005</a>.
  31  *
  32  * <p>
  33  * The Catalog API defines a standard solution for resolving external resources
  34  * referenced by XML documents. It is fully supported by the XML Processors
  35  * allowing application developers to configure a catalog through an XML processor
  36  * or system property or the jaxp.properties file to take advantage of the feature.
  37  * <p>
  38  * The XML Catalog API defines the following interfaces:
  39  * <ul>
  40  *     <li>{@link Catalog} -- The {@link Catalog} interface represents an entity
  41  *         catalog as defined by the Catalog standard. A {@link Catalog} object
  42  *         is immutable. Once created, it can be used to find matches in a
  43  *         {@code system}, {@code public} or {@code uri} entry.
  44  *         A custom resolver implementation may find it useful for locating local
  45  *         resources through a catalog.
  46  *     </li>
  47  *     <li>{@link CatalogFeatures} -- The {@link CatalogFeatures} class holds all
  48  *         of the features and properties the Catalog API supports, including
  49  *         {@code javax.xml.catalog.files}, {@code javax.xml.catalog.defer},
  50  *         {@code javax.xml.catalog.prefer}, and {@code javax.xml.catalog.resolve}.
  51  *     </li>
  52  *     <li>{@link CatalogManager} -- The {@link CatalogManager} class manages the
  53  *         creation of XML catalogs and catalog resolvers.
  54  *     </li>
  55  *     <li>{@link CatalogResolver} -- The {@link CatalogResolver} class is a
  56  *         {@code Catalog} resolver that implements {@link org.xml.sax.EntityResolver}, 
  57  *         {@link javax.xml.stream.XMLResolver}, {@link org.w3c.dom.ls.LSResourceResolver}, 
  58  *         and {@link javax.xml.transform.URIResolver}, and resolves external 
  59  *         references using catalogs.
  60  *     </li>
  61  * </ul>
  62  * <p>
  63  * Unless otherwise noted, passing a null argument to
  64  * a constructor or method in any class or interface in this package will
  65  * cause a {@code NullPointerException} to be thrown.
  66  *
  67  * @since 9
  68  *
  69  */
  70 
  71 package javax.xml.catalog;