//  $Id: Strand.java,v 1.2 2007/02/13 19:08:41 Sasha Buzko Exp $
//
//  Copyright (c) 2000-2002  San Diego Supercomputer Center (SDSC),
//  a facility operated jointly by the University of California,
//  San Diego (UCSD) and General Atomics, San Diego, California, USA.
//
//  Users and possessors of this source code are hereby granted a
//  nonexclusive, royalty-free copyright and design patent license to
//  use this code in individual software.  License is not granted for
//  commercial resale, in whole or in part, without prior written
//  permission from SDSC.  This source is provided "AS IS" without express
//  or implied warranty of any kind.
//
//  For further information, please see:  http://mbt.sdsc.edu
//
//  History:
//  $Log: Strand.java,v $
//  Revision 1.2  2007/02/13 19:08:41  Sasha Buzko
//  *** empty log message ***
//
//  Revision 1.1  2006/05/20 17:02:07  Sasha Buzko
//  Updated version
//
//  Revision 1.1  2006/04/30 20:14:05  Sasha Buzko
//  New version of the app
//
//  Revision 1.1  2006/04/15 19:42:28  Sasha Buzko
//  Initial commit
//
//  Revision 1.1  2005/11/13 04:35:26  Administrator
//  *** empty log message ***
//
//  Revision 1.3  2003/04/23 17:27:59  moreland
//  Removed StructureComponentID/scid and replaced it with a "structure" field
//  in the StructureComponent base class.
//  Changed "getType" method to "getStructureComponentType" to return dynamic
//  SC type (ie: class name).
//
//  Revision 1.2  2003/02/03 22:33:31  moreland
//  Updated comments to reflect the toolkit's treatment of "strand" VS "sheet".
//
//  Revision 1.1  2002/12/16 06:24:41  moreland
//  Changed code to support differentiation of Conformation into Coil, Helix,
//  Strand, and Turn sub-class types (at Eliot Clingman's suggestion).
//
//  Revision 1.1  2002/10/24 17:54:01  moreland
//  Provides implementation for the improved Structure API/implementation.
//
//  Revision 1.1.1.1  2002/07/16 18:00:18  moreland
//  Imported sources
//
//  Revision 1.0  2002/06/10 23:38:39  moreland
//


package edu.sdsc.mbt;


/**
 *  Implements a StructureComponent container for Strand conformation
 *  (secondary structure) data.
 *  <P>
 *  IMPORTANT!: Each individual SHEET record in most data sources
 *  (eg: PDB and mmCIF files) really represents a single STRAND. And, it
 *  takes multiple SHEET records in order to fully specify a sheet structure.
 *  So, in this toolkit, we treat each individual sheet record as a Strand.
 *  <P>
 *  See the "PROGRAMMING NOTE" section of the StructureComponent class.
 *  <P>
 *  @see edu.sdsc.mbt.Structure
 *  @see edu.sdsc.mbt.Conformation
 *  @see edu.sdsc.mbt.StructureComponent
 *  <P>
 *  @author John L. Moreland
 */
public class Strand
	extends Conformation
	implements java.lang.Cloneable, java.io.Serializable
{
	//
	// Constructor
	//

	/**
	 *  Creates a new Strand object.
	 */
	public Strand( )
	{
	}

	/**
	 *  This method returns the fully qualified name of this class as a String
	 *  object. The String object is guaranteed to be a reference to the
	 *  same String object for all instances of a given sub-class.
	 *  This is used in a number of places by the toolkit:
	 */
	private static String className = null;
	public static String getClassName()
	{
		if ( className == null )
			className = ((new Throwable()).getStackTrace())[0].getClassName();
		return className;
	}

	/**
	 *  This method returns the fully qualified name of this class.
	 */
	public String getStructureComponentType( )
	{
		return className;
	}

	//
	// StructureComponent methods
	//

	/**
	 *  Copy all of the field values from the parameter object into "this".
	 */
	public void copy( StructureComponent structureComponent )
	{
		super.copy( structureComponent );
		// Strand strand = (Strand) structureComponent;
		// localField       = strand.localField;
	}

	/**
	 *  Clone this object.
	 */
	public Object clone( )
		throws CloneNotSupportedException
	{
		return super.clone( );
	}

	//
	// Strand fields
	//

	// None.
	
	
	private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
		out.defaultWriteObject();               
	}
	private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
		in.defaultReadObject();
	} 

	public boolean isVisible(){
		return true;
	}

}