Examples of ExtensionRegistry

com.google.protobuf.ExtensionRegistry
A table of known extensions, searchable by name or field number. When parsing a protocol message that might have extensions, you must provide an {@code ExtensionRegistry} in which you have registered any extensionsthat you want to be able to parse. Otherwise, those extensions will just be treated like unknown fields.
For example, if you had the {@code .proto} file:
```
 option java_class = "MyProto"; message Foo { extensions 1000 to max; } extend Foo { optional int32 bar; } 
```
Then you might write code like:
```
 ExtensionRegistry registry = ExtensionRegistry.newInstance(); registry.add(MyProto.bar); MyProto.Foo message = MyProto.Foo.parseFrom(input, registry); 
```
Background:
You might wonder why this is necessary. Two alternatives might come to mind. First, you might imagine a system where generated extensions are automatically registered when their containing classes are loaded. This is a popular technique, but is bad design; among other things, it creates a situation where behavior can change depending on what classes happen to be loaded. It also introduces a security vulnerability, because an unprivileged class could cause its code to be called unexpectedly from a privileged class by registering itself as an extension of the right type.
Another option you might consider is lazy parsing: do not parse an extension until it is first requested, at which point the caller must provide a type to use. This introduces a different set of problems. First, it would require a mutex lock any time an extension was accessed, which would be slow. Second, corrupt data would not be detected until first access, at which point it would be much harder to deal with it. Third, it could violate the expectation that message objects are immutable, since the type provided could be any arbitrary message class. An unpriviledged user could take advantage of this to inject a mutable object into a message belonging to priviledged code and create mischief. @author kenton@google.com Kenton Varda
javax.wsdl.extensions.ExtensionRegistry
This class is used to associate serializers, deserializers, and Java implementation types with extensibility elements. @author Matthew J. Duftler (duftler@us.ibm.com)
org.apache.woden.wsdl20.extensions.ExtensionRegistry
This class is used to associate serializers, deserializers, and Java implementation types with extension elements. It also associates Java implementation types only with extension attributes, but not serializers and deserializers.
This class has been copied from WSDL4J and modified for Woden. TODO update method javadocs. @author Matthew J. Duftler (duftler@us.ibm.com) @author John Kaputin (jkaputin@apache.org)
org.apache.ws.commons.schema.extensions.ExtensionRegistry
The task of the extension serializer is to delegate the serilization of the extensions. The extension serializers/deserializers are retained in seperate maps and there are also two seperate references to default serializers and deserializers which would jump into action when there are no specifically attached serializers/deserializers
org.jboss.as.controller.extension.ExtensionRegistry
A registry for information about {@link Extension}s to the core application server. @author Brian Stansberry (c) 2011 Red Hat Inc.

Examples of org.jboss.as.controller.extension.ExtensionRegistry

        this.serverProxies = serverProxies;
        this.prepareStepHandler = prepareStepHandler;
        this.vaultReader = vaultReader;
        this.ignoredRegistry = ignoredRegistry;
        this.bootstrapListener = bootstrapListener;
        this.extensionRegistry = new ExtensionRegistry(ProcessType.HOST_CONTROLLER, runningModeControl);
    }

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Examples of org.jboss.as.controller.extension.ExtensionRegistry

            }
        }
    }


    private ModelNode loadServerModel(final File file) throws Exception {
        final ExtensionRegistry extensionRegistry = new ExtensionRegistry(ProcessType.STANDALONE_SERVER, new RunningModeControl(RunningMode.NORMAL));
        final QName rootElement = new QName(Namespace.CURRENT.getUriString(), "server");
        final StandaloneXml parser = new StandaloneXml(Module.getBootModuleLoader(), null, extensionRegistry);
        final XmlConfigurationPersister persister = new XmlConfigurationPersister(file, rootElement, parser, parser);
        for (Namespace namespace : Namespace.values()) {
            if (namespace != Namespace.CURRENT) {
                persister.registerAdditionalRootElement(new QName(namespace.getUriString(), "server"), parser);
            }
        }
        extensionRegistry.setWriterRegistry(persister);
        final List<ModelNode> ops = persister.load();


        final ModelNode model = new ModelNode();
        final ModelController controller = createController(ProcessType.STANDALONE_SERVER, model, new Setup() {
            public void setup(Resource resource, ManagementResourceRegistration rootRegistration) {

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Examples of org.jboss.as.controller.extension.ExtensionRegistry


        return model;
    }


    private ModelNode loadDomainModel(File file) throws Exception {
        final ExtensionRegistry extensionRegistry = new ExtensionRegistry(ProcessType.STANDALONE_SERVER, new RunningModeControl(RunningMode.NORMAL));
        final QName rootElement = new QName(Namespace.CURRENT.getUriString(), "domain");
        final DomainXml parser = new DomainXml(Module.getBootModuleLoader(), null, extensionRegistry);
        final XmlConfigurationPersister persister = new XmlConfigurationPersister(file, rootElement, parser, parser);
        for (Namespace namespace : Namespace.values()) {
            if (namespace != Namespace.CURRENT) {
                persister.registerAdditionalRootElement(new QName(namespace.getUriString(), "domain"), parser);
            }
        }
        extensionRegistry.setWriterRegistry(persister);
        final List<ModelNode> ops = persister.load();




        final ModelNode model = new ModelNode();
        final ModelController controller = createController(ProcessType.HOST_CONTROLLER, model, new Setup() {

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