source: NonGTP/Xerces/xerces/include/xercesc/framework/psvi/XSElementDeclaration.hpp @ 358

/*
 * Copyright 2003,2004 The Apache Software Foundation.
 * 
 * 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.
 */

/*
 * $Log: XSElementDeclaration.hpp,v $
 * Revision 1.11  2004/09/08 13:56:08  peiyongz
 * Apache License Version 2.0
 *
 * Revision 1.10  2004/05/04 19:02:40  cargilld
 * Enable IDs to work on all kinds of schema components
 *
 * Revision 1.9  2003/12/24 17:42:02  knoaman
 * Misc. PSVI updates
 *
 * Revision 1.8  2003/12/01 23:23:26  neilg
 * fix for bug 25118; thanks to Jeroen Witmond
 *
 * Revision 1.7  2003/12/01 20:41:25  neilg
 * fix for infinite loop between XSComplexTypeDefinitions and XSElementDeclarations; from David Cargill
 *
 * Revision 1.6  2003/11/23 16:20:16  knoaman
 * PSVI: pass scope and enclosing type during construction.
 *
 * Revision 1.5  2003/11/21 17:29:53  knoaman
 * PSVI update
 *
 * Revision 1.4  2003/11/14 22:47:53  neilg
 * fix bogus log message from previous commit...
 *
 * Revision 1.3  2003/11/14 22:33:30  neilg
 * Second phase of schema component model implementation.  
 * Implement XSModel, XSNamespaceItem, and the plumbing necessary
 * to connect them to the other components.
 * Thanks to David Cargill.
 *
 * Revision 1.2  2003/11/06 15:30:04  neilg
 * first part of PSVI/schema component model implementation, thanks to David Cargill.  This covers setting the PSVIHandler on parser objects, as well as implementing XSNotation, XSSimpleTypeDefinition, XSIDCDefinition, and most of XSWildcard, XSComplexTypeDefinition, XSElementDeclaration, XSAttributeDeclaration and XSAttributeUse.
 *
 * Revision 1.1  2003/09/16 14:33:36  neilg
 * PSVI/schema component model classes, with Makefile/configuration changes necessary to build them
 *
 */

#if !defined(XSELEMENTDECLARATION_HPP)
#define XSELEMENTDECLARATION_HPP

#include <xercesc/framework/psvi/XSObject.hpp>
#include <xercesc/framework/psvi/XSNamedMap.hpp>

XERCES_CPP_NAMESPACE_BEGIN

/**
 * This class describes all properties of a Schema Element Declaration
 * component.
 * This is *always* owned by the validator /parser object from which
 * it is obtained.  
 */

// forward declarations
class XSAnnotation;
class XSComplexTypeDefinition;
class XSIDCDefinition;
class XSTypeDefinition;
class SchemaElementDecl;

class XMLPARSER_EXPORT XSElementDeclaration : public XSObject
{
public:

    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    /** @name Constructors */
    //@{

    /**
      * The default constructor 
      *
      * @param  schemaElementDecl
      * @param  typeDefinition
      * @param  substitutionGroupAffiliation
      * @param  annot
      * @param  identityConstraints
      * @param  xsModel
      * @param  elemScope
      * @param  enclosingTypeDefinition
      * @param  manager     The configurable memory manager
      */
    XSElementDeclaration
    (
        SchemaElementDecl* const             schemaElementDecl
        , XSTypeDefinition* const            typeDefinition
        , XSElementDeclaration* const        substitutionGroupAffiliation
        , XSAnnotation* const                annot
        , XSNamedMap<XSIDCDefinition>* const identityConstraints
        , XSModel* const                     xsModel
        , XSConstants::SCOPE                 elemScope = XSConstants::SCOPE_ABSENT
        , XSComplexTypeDefinition* const     enclosingTypeDefinition = 0
        , MemoryManager* const               manager = XMLPlatformUtils::fgMemoryManager
    );

    //@};

    /** @name Destructor */
    //@{
    ~XSElementDeclaration();
    //@}

    //---------------------
    /** @name overridden XSXSObject methods */

    //@{

    /**
     * The name of type <code>NCName</code> of this declaration as defined in 
     * XML Namespaces.
     */
    const XMLCh* getName();

    /**
     *  The [target namespace] of this object, or <code>null</code> if it is 
     * unspecified. 
     */
    const XMLCh* getNamespace();

    /**
     * A namespace schema information item corresponding to the target 
     * namespace of the component, if it's globally declared; or null 
     * otherwise.
     */
    XSNamespaceItem *getNamespaceItem();

    //@}

    //---------------------
    /** @name XSElementDeclaration methods */

    //@{

    /**
     * [type definition]: either a simple type definition or a complex type 
     * definition. 
     */
    XSTypeDefinition *getTypeDefinition() const;

    /**
     * Optional. One of <code>SCOPE_GLOBAL</code>, <code>SCOPE_LOCAL</code>, 
     * or <code>SCOPE_ABSENT</code>. If the scope is local, then the 
     * <code>enclosingCTDefinition</code> is present. 
     */
    XSConstants::SCOPE getScope() const;

    /**
     * The complex type definition for locally scoped declarations (see 
     * <code>scope</code>). 
     */
    XSComplexTypeDefinition *getEnclosingCTDefinition() const;

    /**
     * [Value constraint]: one of <code>VC_NONE, VC_DEFAULT, VC_FIXED</code>. 
     */
    XSConstants::VALUE_CONSTRAINT getConstraintType() const;

    /**
     * [Value constraint]: the actual value with respect to the [type 
     * definition]. 
     */
    const XMLCh *getConstraintValue();

    /**
     * If nillable is true, then an element may also be valid if it carries 
     * the namespace qualified attribute with local name <code>nil</code> 
     * from namespace <code>http://www.w3.org/2001/XMLSchema-instance</code> 
     * and value <code>true</code> (xsi:nil) even if it has no text or 
     * element content despite a <code>content type</code> which would 
     * otherwise require content. 
     */
    bool getNillable() const;

    /**
     * identity-constraint definitions: a set of constraint definitions. 
     */
    XSNamedMap <XSIDCDefinition> *getIdentityConstraints();

    /**
     * [substitution group affiliation]: optional. A top-level element 
     * definition. 
     */
    XSElementDeclaration *getSubstitutionGroupAffiliation() const;

    /**
     * Convenience method. Check if <code>exclusion</code> is a substitution 
     * group exclusion for this element declaration. 
     * @param exclusion  
     *   <code>DERIVATION_EXTENSION, DERIVATION_RESTRICTION</code> or 
     *   <code>DERIVATION_NONE</code>. Represents final set for the element.
     * @return True if <code>exclusion</code> is a part of the substitution 
     *   group exclusion subset. 
     */
    bool isSubstitutionGroupExclusion(XSConstants::DERIVATION_TYPE exclusion);

    /**
     * [substitution group exclusions]: the returned value is a bit 
     * combination of the subset of {
     * <code>DERIVATION_EXTENSION, DERIVATION_RESTRICTION</code>} or 
     * <code>DERIVATION_NONE</code>. 
     */
    short getSubstitutionGroupExclusions() const;

    /**
     * Convenience method. Check if <code>disallowed</code> is a disallowed 
     * substitution for this element declaration. 
     * @param disallowed {
     *   <code>DERIVATION_SUBSTITUTION, DERIVATION_EXTENSION, DERIVATION_RESTRICTION</code>
     *   } or <code>DERIVATION_NONE</code>. Represents a block set for the 
     *   element.
     * @return True if <code>disallowed</code> is a part of the substitution 
     *   group exclusion subset. 
     */
    bool isDisallowedSubstitution(XSConstants::DERIVATION_TYPE disallowed);

    /**
     * [disallowed substitutions]: the returned value is a bit combination of 
     * the subset of {
     * <code>DERIVATION_SUBSTITUTION, DERIVATION_EXTENSION, DERIVATION_RESTRICTION</code>
     * } corresponding to substitutions disallowed by this 
     * <code>XSElementDeclaration</code> or <code>DERIVATION_NONE</code>. 
     */
    short getDisallowedSubstitutions() const;

    /**
     * {abstract} A boolean. 
     */
    bool getAbstract() const;

    /**
     * Optional. Annotation. 
     */
    XSAnnotation *getAnnotation() const;

    //@}

    //----------------------------------
    /** methods needed by implementation */

    //@{

    void setTypeDefinition(XSTypeDefinition* typeDefinition);

    //@}
private:

    void setEnclosingCTDefinition(XSComplexTypeDefinition* const toSet);
    friend class XSObjectFactory;

    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    XSElementDeclaration(const XSElementDeclaration&);
    XSElementDeclaration & operator=(const XSElementDeclaration &);

protected:

    // -----------------------------------------------------------------------
    //  data members
    // -----------------------------------------------------------------------
    short                         fDisallowedSubstitutions;
    short                         fSubstitutionGroupExclusions;    
    XSConstants::SCOPE            fScope;
    SchemaElementDecl*            fSchemaElementDecl;
    XSTypeDefinition*             fTypeDefinition;
    XSComplexTypeDefinition*      fEnclosingTypeDefinition;
    XSElementDeclaration*         fSubstitutionGroupAffiliation;
    XSAnnotation*                 fAnnotation;
    XSNamedMap<XSIDCDefinition>*  fIdentityConstraints;
};

inline XSTypeDefinition* XSElementDeclaration::getTypeDefinition() const
{
    return fTypeDefinition;
}

inline XSNamedMap<XSIDCDefinition>* XSElementDeclaration::getIdentityConstraints()
{
    return fIdentityConstraints;
}

inline XSElementDeclaration* XSElementDeclaration::getSubstitutionGroupAffiliation() const
{
    return fSubstitutionGroupAffiliation;
}

inline short XSElementDeclaration::getSubstitutionGroupExclusions() const
{
    return fSubstitutionGroupExclusions;
}

inline short XSElementDeclaration::getDisallowedSubstitutions() const
{
    return fDisallowedSubstitutions;
}

inline XSAnnotation *XSElementDeclaration::getAnnotation() const
{
    return fAnnotation;
}

inline XSConstants::SCOPE XSElementDeclaration::getScope() const
{
    return fScope;
}

inline XSComplexTypeDefinition *XSElementDeclaration::getEnclosingCTDefinition() const
{
    return fEnclosingTypeDefinition;
}

inline void XSElementDeclaration::setTypeDefinition(XSTypeDefinition* typeDefinition)
{
    fTypeDefinition = typeDefinition;
}

inline void XSElementDeclaration::setEnclosingCTDefinition(XSComplexTypeDefinition* const toSet)
{
    fEnclosingTypeDefinition = toSet;
}

XERCES_CPP_NAMESPACE_END

#endif