/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 * 
 * You can obtain a copy of the license at
 * https://jwsdp.dev.java.net/CDDLv1.0.html
 * See the License for the specific language governing
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL
 * HEADER in each file and include the License file at
 * https://jwsdp.dev.java.net/CDDLv1.0.html  If applicable,
 * add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your
 * own identifying information: Portions Copyright [yyyy]
 * [name of copyright owner]
 */
package com.sun.xml.xsom;


/**
 * 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();
}