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/*
* Copyright (C) 2002-2016 XimpleWare, [email protected]
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*VTD-XML is protected by US patent 7133857, 7260652, an 7761459*/
/*All licenses to any parties in litigation with XimpleWare have been expressly terminated. No new license, and no renewal of any revoked license,
* is granted to those parties as a result of re-downloading software from this or any other website*/
package com.ximpleware.xpath;
import com.ximpleware.*;
/**
* This class represent an XPath that is a double
*
*/
public class NumExpr extends Expr{
public double dval;
public NumExpr( double d){
dval = d;
//cacheable =false;
}
final public String toString(){
if (dval == (long) dval){
return ""+(long) dval;
}
return ""+dval;
}
final public double eval(){
return dval;
}
final public boolean isNodeSet(){
return false;
}
final public boolean isNumerical(){
return true;
}
final public boolean evalBoolean(VTDNav vn){
if (dval == 0.0 || Double.isNaN(dval) )
return false;
return true;
}
final public double evalNumber(VTDNav vn){ return dval;}
final public int evalNodeSet(VTDNav vn) throws XPathEvalException{
throw new XPathEvalException("NumExpr can't eval to a node set!");
}
final public String evalString(VTDNav vn){
if (dval == (int) dval){
return ""+((int) dval);
}
return ""+dval;
}
final public void reset(VTDNav vn){};
final public boolean isString(){
return false;
}
final public boolean isBoolean(){
return false;
}
// to support computer context size
// needs to add
final public boolean requireContextSize(){
return false;
}
final public void setContextSize(int size){
}
final public void setPosition(int pos){
}
final public int adjust(int n){
return 0;
}
final public boolean isFinal(){
return true;
}
/*final public boolean isConstant(){
return true;
}*/
/*final public void markCacheable(){
}
final public void markCacheable2(){}*/
}