| /* |
| * Copyright (c) 2003, 2022 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0, which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| package jakarta.xml.bind; |
| |
| import org.w3c.dom.Node; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Map; |
| |
| /** |
| * The {@code JAXBContext} class provides the client's entry point to the |
| * Jakarta XML Binding API. It provides an abstraction for managing the XML/Java binding |
| * information necessary to implement the Jakarta XML Binding binding framework operations: |
| * unmarshal, marshal and validate. |
| * |
| * <p>A client application normally obtains new instances of this class using |
| * one of these two styles for newInstance methods, although there are other |
| * specialized forms of the method available: |
| * |
| * <ul> |
| * <li>{@link #newInstance(String, ClassLoader) JAXBContext.newInstance( "com.acme.foo:com.acme.bar" )} <br> |
| * The JAXBContext instance is initialized from a list of colon |
| * separated Java package names. Each java package contains |
| * Jakarta XML Binding mapped classes, schema-derived classes and/or user annotated |
| * classes. Additionally, the java package may contain Jakarta XML Binding package annotations |
| * that must be processed. (see JLS, Section 7.4.1 "Named Packages"). |
| * </li> |
| * <li>{@link #newInstance(Class...) JAXBContext.newInstance( com.acme.foo.Foo.class )} <br> |
| * The JAXBContext instance is initialized with class(es) |
| * passed as parameter(s) and classes that are statically reachable from |
| * these class(es). See {@link #newInstance(Class...)} for details. |
| * </li> |
| * </ul> |
| * |
| * <p><i> |
| * The provider must call the |
| * {@link DatatypeConverter#setDatatypeConverter(DatatypeConverterInterface) |
| * DatatypeConverter.setDatatypeConverter} api prior to any client |
| * invocations of the marshal and unmarshal methods. This is necessary to |
| * configure the datatype converter that will be used during these operations.</i> |
| * |
| * <a id="Unmarshalling"></a> |
| * <h2>Unmarshalling</h2> |
| * <p> |
| * The {@link Unmarshaller} class provides the client application the ability |
| * to convert XML data into a tree of Java content objects. |
| * The unmarshal method allows for |
| * any global XML element declared in the schema to be unmarshalled as |
| * the root of an instance document. |
| * Additionally, the unmarshal method allows for an unrecognized root element that |
| * has an xsi:type attribute's value that references a type definition declared in |
| * the schema to be unmarshalled as the root of an instance document. |
| * The {@code JAXBContext} object |
| * allows the merging of global elements and type definitions across a set of schemas (listed |
| * in the {@code contextPath}). Since each schema in the schema set can belong |
| * to distinct namespaces, the unification of schemas to an unmarshalling |
| * context must be namespace independent. This means that a client |
| * application is able to unmarshal XML documents that are instances of |
| * any of the schemas listed in the {@code contextPath}. For example: |
| * |
| * <pre> |
| * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo:com.acme.bar" ); |
| * Unmarshaller u = jc.createUnmarshaller(); |
| * FooObject fooObj = (FooObject)u.unmarshal( new File( "foo.xml" ) ); // ok |
| * BarObject barObj = (BarObject)u.unmarshal( new File( "bar.xml" ) ); // ok |
| * BazObject bazObj = (BazObject)u.unmarshal( new File( "baz.xml" ) ); // error, "com.acme.baz" not in contextPath |
| * </pre> |
| * |
| * <p> |
| * The client application may also generate Java content trees explicitly rather |
| * than unmarshalling existing XML data. For all Jakarta XML Binding-annotated value classes, |
| * an application can create content using constructors. |
| * For schema-derived interface/implementation classes and for the |
| * creation of elements that are not bound to a Jakarta XML Binding-annotated |
| * class, an application needs to have access and knowledge about each of |
| * the schema derived {@code ObjectFactory} classes that exist in each of |
| * java packages contained in the {@code contextPath}. For each schema |
| * derived java class, there is a static factory method that produces objects |
| * of that type. For example, |
| * assume that after compiling a schema, you have a package {@code com.acme.foo} |
| * that contains a schema derived interface named {@code PurchaseOrder}. In |
| * order to create objects of that type, the client application would use the |
| * factory method like this: |
| * |
| * <pre> |
| * com.acme.foo.PurchaseOrder po = |
| * com.acme.foo.ObjectFactory.createPurchaseOrder(); |
| * </pre> |
| * |
| * <p> |
| * Once the client application has an instance of the the schema derived object, |
| * it can use the mutator methods to set content on it. |
| * |
| * <p> |
| * For more information on the generated {@code ObjectFactory} classes, see |
| * Section 4.2 <i>Java Package</i> of the specification. |
| * |
| * <p> |
| * <i>The provider must generate a class in each |
| * package that contains all of the necessary object factory methods for that |
| * package named ObjectFactory as well as the static |
| * {@code newInstance( javaContentInterface )} method</i> |
| * |
| * <h3>Marshalling</h3> |
| * <p> |
| * The {@link Marshaller} class provides the client application the ability |
| * to convert a Java content tree back into XML data. There is no difference |
| * between marshalling a content tree that is created manually using the factory |
| * methods and marshalling a content tree that is the result an {@code unmarshal} |
| * operation. Clients can marshal a java content tree back to XML data |
| * to a {@code java.io.OutputStream} or a {@code java.io.Writer}. The |
| * marshalling process can alternatively produce SAX2 event streams to a |
| * registered {@code ContentHandler} or produce a DOM Node object. |
| * Client applications have control over the output encoding as well as |
| * whether or not to marshal the XML data as a complete document or |
| * as a fragment. |
| * |
| * <p> |
| * Here is a simple example that unmarshals an XML document and then marshals |
| * it back out: |
| * |
| * <pre> |
| * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" ); |
| * |
| * // unmarshal from foo.xml |
| * Unmarshaller u = jc.createUnmarshaller(); |
| * FooObject fooObj = (FooObject)u.unmarshal( new File( "foo.xml" ) ); |
| * |
| * // marshal to System.out |
| * Marshaller m = jc.createMarshaller(); |
| * m.marshal( fooObj, System.out ); |
| * </pre> |
| * |
| * |
| * <h3>Validation</h3> |
| * <p> |
| * In Jakarta XML Binding, the {@link Unmarshaller} has included convenience methods that expose |
| * the JAXP {@link javax.xml.validation} framework. Please refer to the |
| * {@link Unmarshaller#setSchema(javax.xml.validation.Schema)} API for more |
| * information. |
| * |
| * |
| * <h3>Jakarta XML Binding Runtime Framework Compatibility</h3> |
| * <p> |
| * The following JAXB 1.0 restriction only applies to binding schema to |
| * interfaces/implementation classes. |
| * Since this binding does not require a common runtime system, a Jakarta XML Binding |
| * client application must not attempt to mix runtime objects ({@code JAXBContext, |
| * Marshaller}, etc. ) from different providers. This does not |
| * mean that the client application isn't portable, it simply means that a |
| * client has to use a runtime system provided by the same provider that was |
| * used to compile the schema. |
| * |
| * |
| * <h3>Discovery of Jakarta XML Binding implementation</h3> |
| * <p> |
| * To create an instance of {@link JAXBContext}, one of {@code JAXBContext.newInstance(...)} methods is invoked. After |
| * JAX-B implementation is discovered, call is delegated to appropriate provider's method {@code createContext(...)} |
| * passing parameters from the original call. |
| * <p> |
| * JAX-B implementation discovery happens each time {@code JAXBContext.newInstance} is invoked. If there is no user |
| * specific configuration provided, default JAX-B provider must be returned. |
| * <p> |
| * Implementation discovery consists of following steps: |
| * |
| * <ol> |
| * |
| * <li> |
| * If the system property {@link #JAXB_CONTEXT_FACTORY} exists, then its value is assumed to be the provider |
| * factory class. This phase of the look up enables per-JVM override of the Jakarta XML Binding implementation. |
| * |
| * <li> |
| * If the property {@link #JAXB_CONTEXT_FACTORY} exists in the {@code Map<String, ?>} passed to {@link #newInstance(Class[], Map)} |
| * or to {@link #newInstance(String, ClassLoader, Map)}, then its value is assumed to be the fully qualified provider factory class name. |
| * This phase of the look up enables context sensitive selection of the Jakarta XML Binding implementation. |
| * |
| * <li> |
| * Provider of {@link jakarta.xml.bind.JAXBContextFactory} is loaded using the service-provider loading |
| * facilities, defined by the {@link java.util.ServiceLoader} class, to attempt |
| * to locate and load an implementation of the service using the {@linkplain |
| * java.util.ServiceLoader#load(java.lang.Class) default loading mechanism}: the service-provider loading facility |
| * will use the {@linkplain java.lang.Thread#getContextClassLoader() current thread's context class loader} |
| * to attempt to load the context factory. If the context class loader is null, the |
| * {@linkplain ClassLoader#getSystemClassLoader() system class loader} will be used. |
| * <br> |
| * In case of {@link java.util.ServiceConfigurationError service |
| * configuration error} a {@link jakarta.xml.bind.JAXBException} will be thrown. |
| * |
| * <li> |
| * Finally, if all the steps above fail, then the rest of the look up is unspecified. That said, |
| * the recommended behavior is to simply look for some hard-coded platform default Jakarta XML Binding implementation. |
| * This phase of the look up is so that the environment can have its own Jakarta XML Binding implementation as the last resort. |
| * </ol> |
| * |
| * <p> |
| * Once the provider factory class is discovered, context creation is delegated to one of its |
| * {@code createContext(...)} methods. |
| * |
| * @implNote |
| * Within the last step, if Glassfish AS environment detected, its specific service loader is used to find factory class. |
| * |
| * @author <ul><li>Ryan Shoemaker, Sun Microsystems, Inc.</li> |
| * <li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li> |
| * <li>Joe Fialli, Sun Microsystems, Inc.</li></ul> |
| * |
| * @see Marshaller |
| * @see Unmarshaller |
| * @see <a href="http://docs.oracle.com/javase/specs/jls/se7/html/jls-7.html#jls-7.4.1">S 7.4.1 "Named Packages" |
| * in Java Language Specification</a> |
| * |
| * @since 1.6, JAXB 1.0 |
| */ |
| public abstract class JAXBContext { |
| |
| /** |
| * The name of the property that contains the name of the class capable |
| * of creating new {@code JAXBContext} objects. |
| */ |
| public static final String JAXB_CONTEXT_FACTORY = "jakarta.xml.bind.JAXBContextFactory"; |
| |
| protected JAXBContext() { |
| } |
| |
| |
| /** |
| * Create a new instance of a {@code JAXBContext} class. |
| * |
| * <p> |
| * This is a convenience method to invoke the |
| * {@link #newInstance(String,ClassLoader)} method with |
| * the context class loader of the current thread. |
| * |
| * @param contextPath the context path |
| * |
| * @return the new instance of a {@code JAXBContext} class |
| * |
| * @throws JAXBException if an error was encountered while creating the |
| * {@code JAXBContext} such as |
| * <ol> |
| * <li>failure to locate either ObjectFactory.class or jaxb.index in the packages</li> |
| * <li>an ambiguity among global elements contained in the contextPath</li> |
| * <li>failure to locate a value for the context factory provider property</li> |
| * <li>mixing schema derived packages from different providers on the same contextPath</li> |
| * <li>packages are not open to {@code jakarta.xml.bind} module</li> |
| * </ol> |
| */ |
| public static JAXBContext newInstance( String contextPath ) |
| throws JAXBException { |
| |
| //return newInstance( contextPath, JAXBContext.class.getClassLoader() ); |
| return newInstance( contextPath, getContextClassLoader()); |
| } |
| |
| /** |
| * Create a new instance of a {@code JAXBContext} class. |
| * |
| * <p> |
| * The client application must supply a context path which is a list of |
| * colon (':', \u005Cu003A) separated java package names that contain |
| * schema-derived classes and/or fully qualified Jakarta XML Binding-annotated classes. |
| * Schema-derived |
| * code is registered with the JAXBContext by the |
| * ObjectFactory.class generated per package. |
| * Alternatively than being listed in the context path, programmer |
| * annotated Jakarta XML Binding mapped classes can be listed in a |
| * {@code jaxb.index} resource file, format described below. |
| * Note that a java package can contain both schema-derived classes and |
| * user annotated Jakarta XML Binding classes. Additionally, the java package may |
| * contain Jakarta XML Binding package annotations that must be processed. (see JLS, |
| * Section 7.4.1 "Named Packages"). |
| * </p> |
| * |
| * <p> |
| * Every package listed on the contextPath must meet <b>one or both</b> of the |
| * following conditions otherwise a {@code JAXBException} will be thrown: |
| * </p> |
| * <ol> |
| * <li>it must contain ObjectFactory.class</li> |
| * <li>it must contain jaxb.index</li> |
| * </ol> |
| * |
| * <p> |
| * <b>Format for jaxb.index</b> |
| * <p> |
| * The file contains a newline-separated list of class names. |
| * Space and tab characters, as well as blank |
| * lines, are ignored. The comment character |
| * is '#' (0x23); on each line all characters following the first comment |
| * character are ignored. The file must be encoded in UTF-8. Classes that |
| * are reachable, as defined in {@link #newInstance(Class...)}, from the |
| * listed classes are also registered with JAXBContext. |
| * <p> |
| * Constraints on class name occuring in a {@code jaxb.index} file are: |
| * <ul> |
| * <li>Must not end with ".class".</li> |
| * <li>Class names are resolved relative to package containing |
| * {@code jaxb.index} file. Only classes occuring directly in package |
| * containing {@code jaxb.index} file are allowed.</li> |
| * <li>Fully qualified class names are not allowed. |
| * A qualified class name,relative to current package, |
| * is only allowed to specify a nested or inner class.</li> |
| * </ul> |
| * |
| * <p> |
| * If there are any global XML element name collisions across the various |
| * packages listed on the {@code contextPath}, a {@code JAXBException} |
| * will be thrown. |
| * |
| * <p> |
| * Mixing generated interface/impl bindings from multiple Jakarta XML Binding Providers |
| * in the same context path may result in a {@code JAXBException} |
| * being thrown. |
| * |
| * <p> |
| * The steps involved in discovering the Jakarta XML Binding implementation is discussed in the class javadoc. |
| * |
| * @param contextPath |
| * List of java package names that contain schema |
| * derived class and/or java to schema (Jakarta XML Binding-annotated) |
| * mapped classes. |
| * Packages in {@code contextPath} that are in named modules must be |
| * {@code open} to at least the {@code jakarta.xml.bind} module. |
| * @param classLoader |
| * This class loader will be used to locate the implementation |
| * classes. |
| * |
| * @return a new instance of a {@code JAXBContext} |
| * @throws JAXBException if an error was encountered while creating the |
| * {@code JAXBContext} such as |
| * <ol> |
| * <li>failure to locate either ObjectFactory.class or jaxb.index in the packages</li> |
| * <li>an ambiguity among global elements contained in the contextPath</li> |
| * <li>failure to locate a value for the context factory provider property</li> |
| * <li>mixing schema derived packages from different providers on the same contextPath</li> |
| * <li>packages are not open to {@code jakarta.xml.bind} module</li> |
| * </ol> |
| */ |
| public static JAXBContext newInstance( String contextPath, ClassLoader classLoader ) throws JAXBException { |
| |
| return newInstance(contextPath,classLoader,Collections.<String,Object>emptyMap()); |
| } |
| |
| /** |
| * Create a new instance of a {@code JAXBContext} class. |
| * |
| * <p> |
| * This is mostly the same as {@link JAXBContext#newInstance(String, ClassLoader)}, |
| * but this version allows you to pass in provider-specific properties to configure |
| * the instantiation of {@link JAXBContext}. |
| * |
| * <p> |
| * The interpretation of properties is up to implementations. Implementations must |
| * throw {@code JAXBException} if it finds properties that it doesn't understand. |
| * |
| * @param contextPath |
| * List of java package names that contain schema |
| * derived class and/or java to schema (Jakarta XML Binding-annotated) |
| * mapped classes. |
| * Packages in {@code contextPath} that are in named modules must be |
| * {@code open} to at least the {@code jakarta.xml.bind} module. |
| * @param classLoader |
| * This class loader will be used to locate the implementation classes. |
| * @param properties |
| * provider-specific or provider selection-specific properties. |
| * Can be null, which means the same thing as passing in an empty map. |
| * |
| * @return a new instance of a {@code JAXBContext} |
| * @throws JAXBException if an error was encountered while creating the |
| * {@code JAXBContext} such as |
| * <ol> |
| * <li>failure to locate either ObjectFactory.class or jaxb.index in the packages</li> |
| * <li>an ambiguity among global elements contained in the contextPath</li> |
| * <li>failure to locate a value for the context factory provider property</li> |
| * <li>mixing schema derived packages from different providers on the same contextPath</li> |
| * <li>packages are not open to {@code jakarta.xml.bind} module</li> |
| * </ol> |
| * @since 1.6, JAXB 2.0 |
| */ |
| public static JAXBContext newInstance( String contextPath, |
| ClassLoader classLoader, |
| Map<String,?> properties ) throws JAXBException { |
| |
| return ContextFinder.find( |
| /* The default property name according to the Jakarta XML Binding spec */ |
| JAXB_CONTEXT_FACTORY, |
| |
| /* the context path supplied by the client app */ |
| contextPath, |
| |
| /* class loader to be used */ |
| classLoader, |
| properties ); |
| } |
| |
| // TODO: resurrect this once we introduce external annotations |
| // /** |
| // * Create a new instance of a {@code JAXBContext} class. |
| // * |
| // * <p> |
| // * The client application must supply a list of classes that the new |
| // * context object needs to recognize. |
| // * |
| // * Not only the new context will recognize all the classes specified, |
| // * but it will also recognize any classes that are directly/indirectly |
| // * referenced statically from the specified classes. |
| // * |
| // * For example, in the following Java code, if you do |
| // * {@code newInstance(Foo.class)}, the newly created {@link JAXBContext} |
| // * will recognize both {@code Foo} and {@code Bar}, but not {@code Zot}: |
| // * <pre> |
| // * class Foo { |
| // * Bar b; |
| // * } |
| // * class Bar { int x; } |
| // * class Zot extends Bar { int y; } |
| // * </pre> |
| // * |
| // * Therefore, a typical client application only needs to specify the |
| // * top-level classes, but it needs to be careful. |
| // * |
| // * TODO: if we are to define other mechanisms, refer to them. |
| // * |
| // * @param externalBindings |
| // * list of external binding files. Can be null or empty if none is used. |
| // * when specified, those files determine how the classes are bound. |
| // * |
| // * @param classesToBeBound |
| // * list of java classes to be recognized by the new {@link JAXBContext}. |
| // * Can be empty, in which case a {@link JAXBContext} that only knows about |
| // * spec-defined classes will be returned. |
| // * |
| // * @return |
| // * A new instance of a {@code JAXBContext}. |
| // * |
| // * @throws JAXBException |
| // * if an error was encountered while creating the |
| // * {@code JAXBContext}, such as (but not limited to): |
| // * <ol> |
| // * <li>No Jakarta XML Binding implementation was discovered |
| // * <li>Classes use Jakarta XML Binding annotations incorrectly |
| // * <li>Classes have colliding annotations (i.e., two classes with the same type name) |
| // * <li>Specified external bindings are incorrect |
| // * <li>The Jakarta XML Binding implementation was unable to locate |
| // * provider-specific out-of-band information (such as additional |
| // * files generated at the development time.) |
| // * </ol> |
| // * |
| // * @throws IllegalArgumentException |
| // * if the parameter contains {@code null} (i.e., {@code newInstance(null);}) |
| // * |
| // * @since JAXB 2.0 |
| // */ |
| // public static JAXBContext newInstance( Source[] externalBindings, Class... classesToBeBound ) |
| // throws JAXBException { |
| // |
| // // empty class list is not an error, because the context will still include |
| // // spec-specified classes like String and Integer. |
| // // if(classesToBeBound.length==0) |
| // // throw new IllegalArgumentException(); |
| // |
| // // but it is an error to have nulls in it. |
| // for( int i=classesToBeBound.length-1; i>=0; i-- ) |
| // if(classesToBeBound[i]==null) |
| // throw new IllegalArgumentException(); |
| // |
| // return ContextFinder.find(externalBindings,classesToBeBound); |
| // } |
| |
| /** |
| * Create a new instance of a {@code JAXBContext} class. |
| * |
| * <p> |
| * The client application must supply a list of classes that the new |
| * context object needs to recognize. |
| * |
| * Not only the new context will recognize all the classes specified, |
| * but it will also recognize any classes that are directly/indirectly |
| * referenced statically from the specified classes. Subclasses of |
| * referenced classes nor {@code @XmlTransient} referenced classes |
| * are not registered with JAXBContext. |
| * |
| * For example, in the following Java code, if you do |
| * {@code newInstance(Foo.class)}, the newly created {@link JAXBContext} |
| * will recognize both {@code Foo} and {@code Bar}, but not {@code Zot} or {@code FooBar}: |
| * <pre> |
| * class Foo { |
| * @XmlTransient FooBar c; |
| * Bar b; |
| * } |
| * class Bar { int x; } |
| * class Zot extends Bar { int y; } |
| * class FooBar { } |
| * </pre> |
| * |
| * Therefore, a typical client application only needs to specify the |
| * top-level classes, but it needs to be careful. |
| * |
| * <p> |
| * Note that for each java package registered with JAXBContext, |
| * when the optional package annotations exist, they must be processed. |
| * (see JLS, Section 7.4.1 "Named Packages"). |
| * |
| * <p> |
| * The steps involved in discovering the Jakarta XML Binding implementation is discussed in the class javadoc. |
| * |
| * @param classesToBeBound |
| * List of java classes to be recognized by the new {@link JAXBContext}. |
| * Classes in {@code classesToBeBound} that are in named modules must be in a package |
| * that is {@code open} to at least the {@code jakarta.xml.bind} module. |
| * Can be empty, in which case a {@link JAXBContext} that only knows about |
| * spec-defined classes will be returned. |
| * |
| * @return |
| * A new instance of a {@code JAXBContext}. |
| * |
| * @throws JAXBException |
| * if an error was encountered while creating the |
| * {@code JAXBContext}, such as (but not limited to): |
| * <ol> |
| * <li>No Jakarta XML Binding implementation was discovered |
| * <li>Classes use Jakarta XML Binding annotations incorrectly |
| * <li>Classes have colliding annotations (i.e., two classes with the same type name) |
| * <li>The Jakarta XML Binding implementation was unable to locate |
| * provider-specific out-of-band information (such as additional |
| * files generated at the development time.) |
| * <li>{@code classesToBeBound} are not open to {@code jakarta.xml.bind} module |
| * </ol> |
| * |
| * @throws IllegalArgumentException |
| * if the parameter contains {@code null} (i.e., {@code newInstance(null);}) |
| * |
| * @since 1.6, JAXB 2.0 |
| */ |
| public static JAXBContext newInstance( Class<?> ... classesToBeBound ) |
| throws JAXBException { |
| |
| return newInstance(classesToBeBound,Collections.<String,Object>emptyMap()); |
| } |
| |
| /** |
| * Create a new instance of a {@code JAXBContext} class. |
| * |
| * <p> |
| * An overloading of {@link JAXBContext#newInstance(Class...)} |
| * to configure 'properties' for this instantiation of {@link JAXBContext}. |
| * |
| * <p> |
| * The interpretation of properties is up to implementations. Implementations must |
| * throw {@code JAXBException} if it finds properties that it doesn't understand. |
| * |
| * @param classesToBeBound |
| * List of java classes to be recognized by the new {@link JAXBContext}. |
| * Classes in {@code classesToBeBound} that are in named modules must be in a package |
| * that is {@code open} to at least the {@code jakarta.xml.bind} module. |
| * Can be empty, in which case a {@link JAXBContext} that only knows about |
| * spec-defined classes will be returned. |
| * @param properties |
| * provider-specific or provider selection-specific properties. |
| * Can be null, which means the same thing as passing in an empty map. |
| * |
| * @return |
| * A new instance of a {@code JAXBContext}. |
| * |
| * @throws JAXBException |
| * if an error was encountered while creating the |
| * {@code JAXBContext}, such as (but not limited to): |
| * <ol> |
| * <li>No Jakarta XML Binding implementation was discovered |
| * <li>Classes use Jakarta XML Binding annotations incorrectly |
| * <li>Classes have colliding annotations (i.e., two classes with the same type name) |
| * <li>The Jakarta XML Binding implementation was unable to locate |
| * provider-specific out-of-band information (such as additional |
| * files generated at the development time.) |
| * <li>{@code classesToBeBound} are not open to {@code jakarta.xml.bind} module |
| * </ol> |
| * |
| * @throws IllegalArgumentException |
| * if the parameter contains {@code null} (i.e., {@code newInstance(null,someMap);}) |
| * |
| * @since 1.6, JAXB 2.0 |
| */ |
| public static JAXBContext newInstance( Class<?>[] classesToBeBound, Map<String,?> properties ) |
| throws JAXBException { |
| |
| if (classesToBeBound == null) { |
| throw new IllegalArgumentException(); |
| } |
| |
| // but it is an error to have nulls in it. |
| for (int i = classesToBeBound.length - 1; i >= 0; i--) { |
| if (classesToBeBound[i] == null) { |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| return ContextFinder.find(classesToBeBound,properties); |
| } |
| |
| /** |
| * Create an {@code Unmarshaller} object that can be used to convert XML |
| * data into a java content tree. |
| * |
| * @return an {@code Unmarshaller} object |
| * |
| * @throws JAXBException if an error was encountered while creating the |
| * {@code Unmarshaller} object |
| */ |
| public abstract Unmarshaller createUnmarshaller() throws JAXBException; |
| |
| |
| /** |
| * Create a {@code Marshaller} object that can be used to convert a |
| * java content tree into XML data. |
| * |
| * @return a {@code Marshaller} object |
| * |
| * @throws JAXBException if an error was encountered while creating the |
| * {@code Marshaller} object |
| */ |
| public abstract Marshaller createMarshaller() throws JAXBException; |
| |
| |
| /** |
| * Creates a {@code Binder} object that can be used for |
| * associative/in-place unmarshalling/marshalling. |
| * |
| * @param domType select the DOM API to use by passing in its DOM Node class |
| * |
| * @param <T> the DOM API type |
| * |
| * @return always a new valid {@code Binder} object. |
| * |
| * @throws UnsupportedOperationException |
| * if DOM API corresponding to {@code domType} is not supported by |
| * the implementation. |
| * |
| * @since 1.6, JAXB 2.0 |
| */ |
| public <T> Binder<T> createBinder(Class<T> domType) { |
| // to make JAXB 1.0 implementations work, this method must not be |
| // abstract |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** |
| * Creates a {@code Binder} for W3C DOM. |
| * |
| * @return always a new valid {@code Binder} object. |
| * |
| * @since 1.6, JAXB 2.0 |
| */ |
| public Binder<Node> createBinder() { |
| return createBinder(Node.class); |
| } |
| |
| /** |
| * Creates a {@code JAXBIntrospector} object that can be used to |
| * introspect Jakarta XML Binding objects. |
| * |
| * @return |
| * always return a non-null valid {@code JAXBIntrospector} object. |
| * |
| * @throws UnsupportedOperationException |
| * Calling this method on JAXB 1.0 implementations will throw |
| * an UnsupportedOperationException. |
| * |
| * @since 1.6, JAXB 2.0 |
| */ |
| public JAXBIntrospector createJAXBIntrospector() { |
| // to make JAXB 1.0 implementations work, this method must not be |
| // abstract |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** |
| * Generates the schema documents for this context. |
| * |
| * @param outputResolver |
| * this object controls the output to which schemas |
| * will be sent. |
| * |
| * @throws IOException |
| * if {@link SchemaOutputResolver} throws an {@link IOException}. |
| * |
| * @throws UnsupportedOperationException |
| * Calling this method on JAXB 1.0 implementations will throw |
| * an UnsupportedOperationException. |
| * |
| * @since 1.6, JAXB 2.0 |
| */ |
| public void generateSchema(SchemaOutputResolver outputResolver) throws IOException { |
| // to make JAXB 1.0 implementations work, this method must not be |
| // abstract |
| throw new UnsupportedOperationException(); |
| } |
| |
| private static ClassLoader getContextClassLoader() { |
| if (System.getSecurityManager() == null) { |
| return Thread.currentThread().getContextClassLoader(); |
| } else { |
| return java.security.AccessController.doPrivileged( |
| (java.security.PrivilegedAction<ClassLoader>) () |
| -> Thread.currentThread().getContextClassLoader()); |
| } |
| } |
| |
| } |
