https://xerces.apache.org/xerces2-j/: 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. 
/*
 * Copyright (c) 2001 World Wide Web Consortium,
 * (Massachusetts Institute of Technology, Institut National de
 * Recherche en Informatique et en Automatique, Keio University). All
 * Rights Reserved. This program is distributed under the W3C's Software
 * Intellectual Property License. This program is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.
 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
 */

package org.apache.xerces.dom3.as;


Deprecated:
An attribute declaration in the context of a ASObject.The 
constant 'REQUIRED' is missing from this interface.

See also the Document Object Model (DOM) Level 3 Abstract Schemas and Load
and Save Specification.
/**
 * @deprecated

 * An attribute declaration in the context of a <code>ASObject</code>.The 
 * constant 'REQUIRED' is missing from this interface.
 * <p>See also the <a href='http://www.w3.org/TR/2001/WD-DOM-Level-3-ASLS-20011025'>Document Object Model (DOM) Level 3 Abstract Schemas and Load
and Save Specification</a>.
 */
public interface ASAttributeDeclaration extends ASObject {
    // VALUE_TYPES
    
Describes that the attribute does not have any value constraint.

/**
     * Describes that the attribute does not have any value constraint.
     */
    public static final short VALUE_NONE                = 0;
    
Indicates that the there is a default value constraint.

/**
     * Indicates that the there is a default value constraint.
     */
    public static final short VALUE_DEFAULT             = 1;
    
Indicates that there is a fixed value constraint for this attribute.

/**
     * Indicates that there is a fixed value constraint for this attribute.
     */
    public static final short VALUE_FIXED               = 2;

    
Datatype of the attribute.

/**
     * Datatype of the attribute.
     */
    public ASDataType getDataType();
    
Datatype of the attribute.

/**
     * Datatype of the attribute.
     */
    public void setDataType(ASDataType dataType);

    
Default or fixed value.

/**
     * Default or fixed value.
     */
    public String getDataValue();
    
Default or fixed value.

/**
     * Default or fixed value.
     */
    public void setDataValue(String dataValue);

    
Valid attribute values, separated by commas, in a string.

/**
     * Valid attribute values, separated by commas, in a string.
     */
    public String getEnumAttr();
    
Valid attribute values, separated by commas, in a string.

/**
     * Valid attribute values, separated by commas, in a string.
     */
    public void setEnumAttr(String enumAttr);

    
Owner elements ASObject of attribute, meaning that an 
attribute declaration can be shared by multiple elements.

/**
     * Owner elements <code>ASObject</code> of attribute, meaning that an 
     * attribute declaration can be shared by multiple elements.
     */
    public ASObjectList getOwnerElements();
    
Owner elements ASObject of attribute, meaning that an 
attribute declaration can be shared by multiple elements.

/**
     * Owner elements <code>ASObject</code> of attribute, meaning that an 
     * attribute declaration can be shared by multiple elements.
     */
    public void setOwnerElements(ASObjectList ownerElements);

    
Constraint type if any for this attribute.

/**
     * Constraint type if any for this attribute.
     */
    public short getDefaultType();
    
Constraint type if any for this attribute.

/**
     * Constraint type if any for this attribute.
     */
    public void setDefaultType(short defaultType);

}