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package com.sun.xml.bind.v2.model.impl;

import java.util.LinkedHashSet;
import java.util.Set;

import javax.xml.bind.annotation.XmlElementDecl;

import com.sun.xml.bind.v2.model.annotation.Locatable;
import com.sun.xml.bind.v2.model.annotation.MethodLocatable;
import com.sun.xml.bind.v2.model.core.RegistryInfo;
import com.sun.xml.bind.v2.model.core.TypeInfo;
import com.sun.xml.bind.v2.model.nav.Navigator;
import com.sun.xml.bind.v2.runtime.IllegalAnnotationException;
import com.sun.xml.bind.v2.runtime.Location;
import com.sun.xml.bind.v2.ContextFactory;

 * Implementation of {@link RegistryInfo}.
 * @author Kohsuke Kawaguchi
// experimenting with shorter type parameters for <T,C,F,M> quadruple.
// the idea is that they show so often that you'd understand the meaning
// without relying on the whole name.
final class RegistryInfoImpl<T,C,F,M> implements Locatable, RegistryInfo<T,C> {

    final C registryClass;
    private final Locatable upstream;
    private final Navigator<T,C,F,M> nav;

     * Types that are referenced from this registry.
    private final Set<TypeInfo<T,C>> references = new LinkedHashSet<TypeInfo<T,C>>();

     * Picks up references in this registry to other types.
    RegistryInfoImpl(ModelBuilder<T,C,F,M> builder, Locatable upstream, C registryClass) {
        this.nav = builder.nav;
        this.registryClass = registryClass;
        this.upstream = upstream;

        if(nav.getDeclaredField(registryClass,ContextFactory.USE_JAXB_PROPERTIES)!=null) {
            // the user is trying to use ObjectFactory that we generate for interfaces,
            // that means he's missing
            builder.reportError(new IllegalAnnotationException(
            // looking at members will only add more errors, so just abort now

        for( M m : nav.getDeclaredMethods(registryClass) ) {
            XmlElementDecl em = builder.reader.getMethodAnnotation(
                XmlElementDecl.class, m, this );

            if(em==null) {
                if(nav.getMethodName(m).startsWith("create")) {
                    // this is a factory method. visit this class
                            new MethodLocatable<M>(this,m,nav)));


            ElementInfoImpl<T,C,F,M> ei;
            try {
                ei = builder.createElementInfo(this,m);
            } catch (IllegalAnnotationException e) {
                continue;   // recover by ignoring this element

            // register this mapping
            // TODO: any chance this could cause a stack overflow (by recursively visiting classes)?

    public Locatable getUpstream() {
        return upstream;

    public Location getLocation() {
        return nav.getClassLocation(registryClass);

    public Set<TypeInfo<T,C>> getReferences() {
        return references;

     * Gets the name of the package that this registry governs.
    public String getPackageName() {
        return nav.getPackageName(registryClass);

    public C getClazz() {
        return registryClass;
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