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Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual. Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema 1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.xerces.xs;

/**
 * The interface represents the Attribute Declaration schema component.
 */
public interface XSAttributeDeclaration extends XSObject {
    /**
     * [type definition]: A simple type definition. 
     */
    public XSSimpleTypeDefinition getTypeDefinition();

    /**
     * [scope]. One of SCOPE_GLOBAL, SCOPE_LOCAL, or 
     * SCOPE_ABSENT. If the scope is local, then the 
     * enclosingCTDefinition is present. 
     */
    public short getScope();

    /**
     * The complex type definition for locally scoped declarations (see 
     * scope), otherwise null if no such 
     * definition exists. 
     */
    public XSComplexTypeDefinition getEnclosingCTDefinition();

    /**
     * Value constraint: one of VC_NONE, VC_DEFAULT, VC_FIXED. 
     */
    public short getConstraintType();

    /**
     * Value constraint: The constraint value with respect to the [type 
     * definition], otherwise null. 
     * 
     * @deprecated Use getValueConstraintValue().getNormalizedValue() instead
     */
    public String getConstraintValue();

    /**
     * Value Constraint: Binding specific actual constraint value or 
     * null if the value is in error or there is no value 
     * constraint. 
     * @exception XSException
     *   NOT_SUPPORTED_ERR: Raised if the implementation does not support this 
     *   method.
     *  
     *  @deprecated Use getValueConstraintValue().getActualValue() instead
     */
    public Object getActualVC()
                                                        throws XSException;

    /**
     * The actual constraint value built-in datatype, e.g. 
     * STRING_DT, SHORT_DT. If the type definition of this 
     * value is a list type definition, this method returns 
     * LIST_DT. If the type definition of this value is a list 
     * type definition whose item type is a union type definition, this 
     * method returns LISTOFUNION_DT. To query the actual 
     * constraint value of the list or list of union type definitions use 
     * itemValueTypes. If the actualValue is 
     * null, this method returns UNAVAILABLE_DT. 
     * @exception XSException
     *   NOT_SUPPORTED_ERR: Raised if the implementation does not support this 
     *   method.
     *  
     *  @deprecated Use getValueConstraintValue().getActualValueType() instead
     */
    public short getActualVCType()
                                                        throws XSException;

    /**
     * In the case the actual constraint value represents a list, i.e. the 
     * actualValueType is LIST_DT, the returned 
     * array consists of one type kind which represents the itemType. If the 
     * actual constraint value represents a list type definition whose item 
     * type is a union type definition, i.e. LISTOFUNION_DT, 
     * for each actual constraint value in the list the array contains the 
     * corresponding memberType kind. For examples, see 
     * ItemPSVI.itemValueTypes. 
     * @exception XSException
     *   NOT_SUPPORTED_ERR: Raised if the implementation does not support this 
     *   method.
     *   
     *  @deprecated Use getValueConstraintValue().getListValueTypes() instead
     */
    public ShortList getItemValueTypes()
                                                        throws XSException;

    /**
     * The actual value of the default or fixed value constraint.
     */
    public XSValue getValueConstraintValue();

    /**
     * An annotation if it exists, otherwise null. 
     * If not null then the first [annotation] from the sequence of annotations.
     */
    public XSAnnotation getAnnotation();
    
    /**
     * A sequence of [annotations] or an empty  XSObjectList. 
     */
    public XSObjectList getAnnotations();    
}