/*-
 * ~~~~~~licensing~~~~~~
 * xsom
 * ==========
 * Copyright (C) 2020 - 2025 EmDev LLC
 * ==========
 * You may not use this file except in accordance with the License Terms of the Copyright
 * Holder located at: https://entaxy.ru/eula . All copyrights, all intellectual property
 * rights to the Software and any copies are the property of the Copyright Holder. Unless
 * it is explicitly allowed the Copyright Holder, the User is prohibited from using the
 * Software for commercial purposes to provide services to third parties.
 * 
 * The Copyright Holder hereby declares that the Software is provided on an "AS IS".
 * Under no circumstances does the Copyright Holder guarantee or promise that the
 * Software provided by him will be suitable or not suitable for the specific purposes
 * of the User, that the Software will meet all commercial and personal subjective
 * expectations of the User, that the Software will work properly, without technical
 * errors, quickly and uninterruptedly.
 * 
 * Under no circumstances shall the Copyright Holder or its Affiliates is not liable
 * to the User for any direct or indirect losses of the User, his expenses or actual
 * damage, including, downtime; loss of bussines; lost profit; lost earnings; loss
 * or damage to data, property, etc.
 * ~~~~~~/licensing~~~~~~
 */
/*
 * Copyright (C) 2017 Oracle
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.sun.xml.xsom;

import java.util.List;


/**
 * Complex type.
 * 
 * @author
 *  Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
 */
public interface XSComplexType extends XSType, XSAttContainer
{
    /**
     * Checks if this complex type is declared as an abstract type.
     */
    boolean isAbstract();

    boolean isFinal(int derivationMethod);
    /**
     * Roughly corresponds to the block attribute. But see the spec
     * for gory detail.
     */
    boolean isSubstitutionProhibited(int method);
    
    /**
     * Gets the scope of this complex type.
     * This is not a property defined in the schema spec.
     * 
     * @return
     *      null if this complex type is global. Otherwise
     *      return the element declaration that contains this anonymous
     *      complex type.
     */
    XSElementDecl getScope();

    /**
     * The content of this complex type.
     * 
     * @return
     *      always non-null.
     */
    XSContentType getContentType();
    
    /**
     * Gets the explicit content of a complex type with a complex content
     * that was derived by extension.
     * 
     * <p>
     * Informally, the "explicit content" is the portion of the 
     * content model added in this derivation. IOW, it's a delta between
     * the base complex type and this complex type.
     * 
     * <p>
     * For example, when a complex type T2 derives fom T1, then:
     * <pre>
     * content type of T2 = SEQUENCE( content type of T1, explicit content of T2 )
     * </pre>
     * 
     * @return
     *      If this complex type is derived by restriction or has a
     *      simple content, this method returns null.
     *      IOW, this method only works for a complex type with
     *      a complex content derived by extension from another complex type.
     */
    XSContentType getExplicitContent();

    // meaningful only if getContentType returns particles
    boolean isMixed();

    /**
     * If this {@link XSComplexType} is redefined by another complex type,
     * return that component.
     *
     * @return null
     *      if this component has not been redefined.
     */
    public XSComplexType getRedefinedBy();

    /**
     * Returns a list of direct subtypes of this complex type. If the type is not subtyped, returns empty list.
     * Doesn't return null.
     * Note that the complex type may be extended outside of the scope of the schemaset known to XSOM.
     * @return
     */
    public List<XSComplexType> getSubtypes();

    /**
     * Returns a list of element declarations of this type.
     * @return
     */
    public List<XSElementDecl> getElementDecls();

}
