/* TypeInfoProvider.java -- 
   Copyright (C) 2004, 2005  Free Software Foundation, Inc.

This file is part of GNU Classpath.

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it under the terms of the GNU General Public License as published by
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making a combined work based on this library.  Thus, the terms and
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permission to link this library with independent modules to produce an
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package javax.xml.validation;

import org.w3c.dom.TypeInfo;

/**
 * Provides access to the PSVI type info supplied by
 * <code>ValidatorHandler</code>.
 *
 * @author (a href='mailto:dog@gnu.org'>Chris Burdess</a)
 * @since 1.3
 */
public abstract class TypeInfoProvider
{

  protected TypeInfoProvider()
  {
  }

  /**
   * Returns the type information for the current element.
   */
  public abstract TypeInfo getElementTypeInfo();

  /**
   * Returns the type information for the specified attribute of the current
   * element.
   * @param index the attribute index as for the Attributes object passed to
   * the startElement callback
   */
  public abstract TypeInfo getAttributeTypeInfo(int index);

  /**
   * Indicates if the attribute at the specified index is of the ID type.
   * @param index the attribute index as for the Attributes object passed to
   * the startElement callback
   */
  public abstract boolean isIdAttribute(int index);

  /**
   * Returns false if the attribute was defaulted (added by the validator).
   * @param index the attribute index as for the Attributes object passed to
   * the startElement callback
   */
  public abstract boolean isSpecified(int index);
  
}