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This module contains the Metro runtime code.
There is a newer version: 4.0.4
/*
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 *
 * Copyright (c) 1997-2011 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
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package com.sun.xml.bind.v2.runtime.unmarshaller;

import javax.xml.bind.annotation.DomHandler;

import com.sun.xml.bind.v2.model.core.WildcardMode;

import org.xml.sax.SAXException;

/**
 * Feed incoming events to {@link DomHandler} and builds a DOM tree.
 * 
 * 
 * Note that the SAXException returned by the ContentHandler is
 * unreported. So we have to catch them and report it, then rethrow
 * it if necessary.
 *
 * @author
 *     Kohsuke Kawaguchi ([email protected])
 */
public final class WildcardLoader extends ProxyLoader {

    private final DomLoader dom;

    private final WildcardMode mode;

    public WildcardLoader(DomHandler dom, WildcardMode mode) {
        this.dom = new DomLoader(dom);
        this.mode = mode;
    }

    protected Loader selectLoader(UnmarshallingContext.State state, TagName tag) throws SAXException {
        UnmarshallingContext context = state.getContext();

        if(mode.allowTypedObject) {
            Loader l = context.selectRootLoader(state,tag);
            if(l!=null)
                return l;
        }
        if(mode.allowDom)
            return dom;

        // simply discard.
        return Discarder.INSTANCE;
    }

}