/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* 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.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.tools.xjc.model;
import javax.activation.MimeType;
import com.sun.codemodel.JExpression;
import com.sun.tools.xjc.model.nav.NType;
import com.sun.tools.xjc.outline.Outline;
import com.sun.xml.bind.v2.model.core.ID;
import com.sun.xml.xsom.XmlString;
/**
* Information about how another type is referenced.
*
* <p>
* In practice it is often easier to use {@link CTypeInfo}
* instead of {@link NType}, so this interface defines {@link #getInfo()}.
*
* @author Kohsuke Kawaguchi
* @see TypeUseImpl
*/
public interface TypeUse {
/**
* If the use can hold multiple values of the specified type.
*/
boolean isCollection();
/**
* If this type use is adapting the type, returns the adapter.
* Otherwise return null.
*/
CAdapter getAdapterUse();
/**
* Individual item type.
*/
CNonElement getInfo();
/**
* Whether the referenced type (individual item type in case of collection)
* is ID/IDREF.
*
* <p>
* ID is a property of a relationship. When a bean Foo has an ID property
* called 'bar' whose type is String, Foo isn't an ID, String isn't an ID,
* but this relationship is an ID (in the sense that Foo uses this String
* as an ID.)
*
* <p>
* The same thing can be said with IDREF. When Foo refers to Bar by means of
* IDREF, neither Foo nor Bar is IDREF.
*
* <p>
* That's why we have this method in {@link TypeUse}.
*/
ID idUse();
/**
* A {@link TypeUse} can have an associated MIME type.
*/
MimeType getExpectedMimeType();
/**
* Creates a constant for the given lexical value.
*
* <p>
* For example, to create a constant 1 for {@code xs:int}, you'd do:
* <pre>
* CBuiltinLeafInfo.INT.createConstant( codeModel, "1", null );
* </pre>
*
* <p>
* This method is invoked at the backend as a part of the code generation process.
*
* @throws IllegalStateException
* if the type isn't bound to a text in XML.
*
* @return null
* if the constant cannot be created for this {@link TypeUse}
* (such as when it's a collection)
*/
JExpression createConstant(Outline outline, XmlString lexical);
}