www.pudn.com > cryptix-asn1-0.1.11.zip > NodeInfo.java

/* $Id: NodeInfo.java,v 1.1.1.1 2001/02/24 04:59:04 raif Exp $ 
 * 
 * Copyright (C) 1997-2001 The Cryptix Foundation Limited. All rights reserved. 
 * 
 * Use, modification, copying and distribution of this software is subject to 
 * the terms and conditions of the Cryptix General Licence. You should have 
 * received a copy of the Cryptix General Licence along with this library; if 
 * not, you can download a copy from http://www.cryptix.org/ 
 */ 
package cryptix.asn1.lang; 
 
import cryptix.asn1.analysis.DepthFirstAdapter; 
import cryptix.asn1.node.Node; 
 
/** 
 * An immutable object to group a parsed sequence/set element data.
 
 * 
 * @version $Revision: 1.1.1.1 $ 
 * @author  Raif S. Naffah 
 */ 
public class NodeInfo { 
 
	// Constants and vars 
	// ....................................................................... 
 
	private String name; 
	private String type; 
	private String tag; 
	private Node n; 
	private transient String sf; // string form of this object. cached for speed 
 
	// Constructor(s) 
	// ....................................................................... 
 
	/** 
	 * Trivial constructor. 
	 * 
	 * @param name the user-defined name of the ASN.1 type. 
	 * @param type the basic ASN.1 type which is the superclass of this type. 
	 * @param tag the tag instance for this new type. 
	 * @param n the SableCC Node instance containing additional AST info about 
	 * this type, which the Interpreter may use. 
	 */ 
	public NodeInfo(String name, String type, String tag, Node n) { 
		this.name = name; 
		this.type = type; 
		this.tag = tag; 
		this.n = n; 
	} 
 
	// Instance methods 
	// ....................................................................... 
 
	/** 
	 * Returns the type's user-defined name. 
	 * 
	 * @return the type's user-defined name. 
	 */ 
	public String getElementName() { 
		return (this.name); 
	} 
 
	/** 
	 * Returns the superclass of this type. 
	 * 
	 * @return the superclass of this type. 
	 */ 
	public String getElementType() { 
		return (this.type); 
	} 
 
	/** 
	 * Returns the tag instance attached to this type. 
	 * 
	 * @return the tag instance attached to this type. 
	 */ 
	public String getTagValue() { 
		return (this.tag); 
	} 
 
	/** 
	 * Returns the SableCC Node instance attached to this type. 
	 * 
	 * @return the SableCC Node instance attached to this type. 
	 */ 
	public Node getTypeSpecs() { 
		return (this.n); 
	} 
 
	/** 
	 * Returns a string form of this instance. 
	 * 
	 * @return a string form of this instance. 
	 */ 
	public String toString() { 
		if (sf == null) { 
			StringBuffer sb = new StringBuffer(); 
			sb.append(name).append("; "); 
			sb.append(type).append("; "); 
			sb.append(tag).append("; "); 
			sb.append(String.valueOf(n)); 
			sf = sb.toString(); 
		} 
		return (sf); 
	} 
}