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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * published by the Free Software Foundation.  Oracle designates this

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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

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package com.sun.xml.internal.xsom.impl;

import com.sun.xml.internal.xsom.XSAttGroupDecl;

import com.sun.xml.internal.xsom.XSAttributeDecl;

import com.sun.xml.internal.xsom.XSComplexType;

import com.sun.xml.internal.xsom.XSContentType;

import com.sun.xml.internal.xsom.XSElementDecl;

import com.sun.xml.internal.xsom.XSIdentityConstraint;

import com.sun.xml.internal.xsom.XSSimpleType;

import com.sun.xml.internal.xsom.XSTerm;

import com.sun.xml.internal.xsom.XSType;

/**

 * Reference to other schema components.

 *

 * <p>

 * There are mainly two different types of references. One is

 * the direct reference, which is only possible when schema components

 * are already available when references are made.

 * The other is the lazy reference, which keeps references by names

 * and later look for the component by name.

 *

 * <p>

 * This class defines interfaces that define the behavior of such

 * references and classes that implement direct reference semantics.

 *

 * @author Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)

 */

public abstract class Ref {

    public static interface Term {

        /** Obtains a reference as a term. */

        XSTerm getTerm();

    }

    public static interface Type {

        /** Obtains a reference as a type. */

        XSType getType();

    }

    public static interface ContentType {

        XSContentType getContentType();

    }

    public static interface SimpleType extends Ref.Type {

        public XSSimpleType getType();

    }

    public static interface ComplexType extends Ref.Type {

        public XSComplexType getType();

    }

    public static interface Attribute {

        XSAttributeDecl getAttribute();

    }

    public static interface AttGroup {

        XSAttGroupDecl get();

    }

    public static interface Element extends Term {

        XSElementDecl get();

    }

    public static interface IdentityConstraint {

        XSIdentityConstraint get();

    }

//

//

//    private static void _assert( boolean b ) {

//        if(!b)

//            throw new InternalError("assertion failed");

//    }

}