xscomplextypedecl.java

来自「JAVA 所有包」· Java 代码 · 共 695 行 · 第 1/2 页

            if (isDerivedByRestriction(ancestorNS, ancestorName,
                    derivationMethod, type)) {
                return true;
            } else if (!isDerivedByExtension(ancestorNS, ancestorName,
                    derivationMethod, type)) {
                return true;
            }
            oldType = type;
            type = type.getBaseType();
        }
        
        return derivedFrom;
    }
    
    /**
     * Checks if a type is derived from another by restriction. See:
     * http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#TypeInfo-isDerivedFrom
     * 
     * @param ancestorNS
     *            The namspace of the ancestor type declaration
     * @param ancestorName
     *            The name of the ancestor type declaration
     * @param derivationMethod
     *            A short indication the method of derivation *
     * @param type
     *            The reference type definition
     * 
     * @return boolean True if the type is derived by restriciton for the
     *         reference type
     */
    private boolean isDerivedByRestriction(String ancestorNS,
            String ancestorName, int derivationMethod, XSTypeDefinition type) {
        
        XSTypeDefinition oldType = null;
        while (type != null && type != oldType) {
            
            // ancestor is anySimpleType, return false
            if (ancestorNS != null
                    && ancestorNS.equals(SchemaSymbols.URI_SCHEMAFORSCHEMA)
                    && ancestorName.equals(SchemaSymbols.ATTVAL_ANYSIMPLETYPE)) {
                return false;
            }
            
            // if the name and namespace of this type is the same as the
            // ancestor return true
            if ((ancestorName.equals(type.getName()))
                    && (ancestorNS != null && ancestorNS.equals(type.getNamespace())) 
                            || ((type.getNamespace() == null && ancestorNS == null))) {
                
                return true;
            }
            
            // If the base type is a complexType with simpleContent
            if (type instanceof XSSimpleTypeDecl) {
                if (ancestorNS.equals(SchemaSymbols.URI_SCHEMAFORSCHEMA)
                        && ancestorName.equals(SchemaSymbols.ATTVAL_ANYTYPE)) {
                    ancestorName = SchemaSymbols.ATTVAL_ANYSIMPLETYPE;
                }
                return ((XSSimpleTypeDecl) type).isDOMDerivedFrom(ancestorNS,
                        ancestorName, derivationMethod);
            } else {
                // If the base type is a complex type
                // Every derivation step till the base type should be
                // restriction. If not return false
                if (((XSComplexTypeDecl) type).getDerivationMethod() != XSConstants.DERIVATION_RESTRICTION) {
                    return false;
                }
            }
            oldType = type;
            type = type.getBaseType();
            
        }
        
        return false;
    }
    
    /**
     * Checks if a type is derived from another by extension. See:
     * http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#TypeInfo-isDerivedFrom
     * 
     * @param ancestorNS
     *            The namspace of the ancestor type declaration
     * @param ancestorName
     *            The name of the ancestor type declaration
     * @param derivationMethod
     *            A short indication the method of derivation
     * @param type
     *            The reference type definition
     * 
     * @return boolean True if the type is derived by extension for the
     *         reference type
     */
    private boolean isDerivedByExtension(String ancestorNS,
            String ancestorName, int derivationMethod, XSTypeDefinition type) {
        
        boolean extension = false;
        XSTypeDefinition oldType = null;
        while (type != null && type != oldType) {
            // If ancestor is anySimpleType return false.
            if (ancestorNS != null
                    && ancestorNS.equals(SchemaSymbols.URI_SCHEMAFORSCHEMA)
                    && ancestorName.equals(SchemaSymbols.ATTVAL_ANYSIMPLETYPE)
                    && SchemaSymbols.URI_SCHEMAFORSCHEMA.equals(type.getNamespace())
                            && SchemaSymbols.ATTVAL_ANYTYPE.equals(type.getName())) {
                break;
            }
            
            if ((ancestorName.equals(type.getName()))
                    && ((ancestorNS == null && type.getNamespace() == null) 
                        || (ancestorNS != null && ancestorNS.equals(type.getNamespace())))) {
                // returns true if atleast one derivation step was extension
                return extension;
            }
            
            // If the base type is a complexType with simpleContent
            if (type instanceof XSSimpleTypeDecl) {
                if (ancestorNS.equals(SchemaSymbols.URI_SCHEMAFORSCHEMA)
                        && ancestorName.equals(SchemaSymbols.ATTVAL_ANYTYPE)) {
                    ancestorName = SchemaSymbols.ATTVAL_ANYSIMPLETYPE;
                }
                
                // derivationMethod extension will always return false for a
                // simpleType,
                // we treat it like a restriction
                if ((derivationMethod & DERIVATION_EXTENSION) != 0) {
                    return extension
                    & ((XSSimpleTypeDecl) type).isDOMDerivedFrom(
                            ancestorNS, ancestorName,
                            (derivationMethod & DERIVATION_RESTRICTION));
                } else {
                    return extension
                    & ((XSSimpleTypeDecl) type).isDOMDerivedFrom(
                            ancestorNS, ancestorName, derivationMethod);
                }
                
            } else {
                // If the base type is a complex type
                // At least one derivation step upto the ancestor type should be
                // extension.
                if (((XSComplexTypeDecl) type).getDerivationMethod() == XSConstants.DERIVATION_EXTENSION) {
                    extension = extension | true;
                }
            }
            oldType = type;
            type = type.getBaseType();
        }
        
        return false;
    }
    
    
    
    public void reset(){
        fName = null;
        fTargetNamespace = null;
        fBaseType = null;
        fDerivedBy = XSConstants.DERIVATION_RESTRICTION;
        fFinal = XSConstants.DERIVATION_NONE;
        fBlock = XSConstants.DERIVATION_NONE;

        fMiscFlags = 0;

        // reset attribute group
        fAttrGrp.reset();
        fContentType = CONTENTTYPE_EMPTY;
        fXSSimpleType = null;
        fParticle = null;
        fCMValidator = null;
        if(fAnnotations != null) {
            // help out the garbage collector
            fAnnotations.clear();
        }
        fAnnotations = null;
    }

    /**
     * Get the type of the object, i.e ELEMENT_DECLARATION.
     */
    public short getType() {
        return XSConstants.TYPE_DEFINITION;
    }

    /**
     * The <code>name</code> of this <code>XSObject</code> depending on the
     * <code>XSObject</code> type.
     */
    public String getName() {
        return getAnonymous() ? null : fName;
    }

    /**
     * A boolean that specifies if the type definition is anonymous.
     * Convenience attribute. This is a field is not part of
     * XML Schema component model.
     */
    public boolean getAnonymous() {
        return((fMiscFlags & CT_IS_ANONYMOUS) != 0);
    }

    /**
     * The namespace URI of this node, or <code>null</code> if it is
     * unspecified.  defines how a namespace URI is attached to schema
     * components.
     */
    public String getNamespace() {
        return fTargetNamespace;
    }

    /**
     * {base type definition} Either a simple type definition or a complex
     * type definition.
     */
    public XSTypeDefinition getBaseType() {
        return fBaseType;
    }

    /**
     * {derivation method} Either extension or restriction. The valid constant
     * value for this <code>XSConstants</code> EXTENTION, RESTRICTION.
     */
    public short getDerivationMethod() {
        return fDerivedBy;
    }

    /**
     * {final} For complex type definition it is a subset of {extension,
     * restriction}. For simple type definition it is a subset of
     * {extension, list, restriction, union}.
     * @param derivation  Extension, restriction, list, union constants
     *   (defined in <code>XSConstants</code>).
     * @return True if derivation is in the final set, otherwise false.
     */
    public boolean isFinal(short derivation) {
        return (fFinal & derivation) != 0;
    }

    /**
     * {final} For complex type definition it is a subset of {extension, restriction}.
     *
     * @return A bit flag that represents:
     *         {extension, restriction) or none for complexTypes;
     *         {extension, list, restriction, union} or none for simpleTypes;
     */
    public short getFinal() {
        return fFinal;
    }

    /**
     * {abstract} A boolean. Complex types for which {abstract} is true must
     * not be used as the {type definition} for the validation of element
     * information items.
     */
    public boolean getAbstract() {
        return((fMiscFlags & CT_IS_ABSTRACT) != 0);
    }

    /**
     *  {attribute uses} A set of attribute uses.
     */
    public XSObjectList getAttributeUses() {
        return fAttrGrp.getAttributeUses();
    }

    /**
     * {attribute wildcard} Optional. A wildcard.
     */
    public XSWildcard getAttributeWildcard() {
        return fAttrGrp.getAttributeWildcard();
    }

    /**
     * {content type} One of empty, a simple type definition (see
     * <code>simpleType</code>, or mixed, element-only (see
     * <code>cmParticle</code>).
     */
    public short getContentType() {
        return fContentType;
    }

    /**
     * A simple type definition corresponding to simple content model,
     * otherwise <code>null</code>
     */
    public XSSimpleTypeDefinition getSimpleType() {
        return fXSSimpleType;
    }

    /**
     * A particle for mixed or element-only content model, otherwise
     * <code>null</code>
     */
    public XSParticle getParticle() {
        return fParticle;
    }

    /**
     * {prohibited substitutions} A subset of {extension, restriction}.
     * @param prohibited  extention or restriction constants (defined in
     *   <code>XSConstants</code>).
     * @return True if prohibited is a prohibited substitution, otherwise
     *   false.
     */
    public boolean isProhibitedSubstitution(short prohibited) {
        return (fBlock & prohibited) != 0;
    }

    /**
     * {prohibited substitutions}
     *
     * @return A bit flag corresponding to prohibited substitutions
     */
    public short getProhibitedSubstitutions() {
        return fBlock;
    }

    /**
     * Optional. Annotation.
     */
    public XSObjectList getAnnotations() {
        return fAnnotations;
    }
    
	/**
	 * @see com.sun.org.apache.xerces.internal.xs.XSObject#getNamespaceItem()
	 */
	public XSNamespaceItem getNamespaceItem() {
        // REVISIT: implement
		return null;
	}

    /* (non-Javadoc)
     * @see com.sun.org.apache.xerces.internal.xs.XSComplexTypeDefinition#getAttributeUse(java.lang.String, java.lang.String)
     */
    public XSAttributeUse getAttributeUse(String namespace, String name) {
         return fAttrGrp.getAttributeUse(namespace, name);
    }

    public String getTypeNamespace() {
        return getNamespace();
    }

    public boolean isDerivedFrom(String typeNamespaceArg, String typeNameArg, int derivationMethod) {
        return isDOMDerivedFrom(typeNamespaceArg, typeNameArg, derivationMethod);
    }

} // class XSComplexTypeDecl