Revision 22512 trunk/extensions/extSymbology/src/org/gvsig/symbology/fmap/rendering/filter/operations/AddOperator.java

View differences:

AddOperator.java
49 49 

  		




  50
  50
  
    
/**


  		




  51
  51
  
    
 * Implements the funcionality of an ADD operator


  		




  52
  
  
    
 * 


  		




  
  52
  
    
 *


  		




  53
  53
  
    
 * @author Pepe Vidal Salvador - jose.vidal.salvador@iver.es


  		




  54
  54
  
    
 *


  		




  55
  55
  
    
 */


  		




  56
  
  
    
public class AddOperator implements Expression {


  		




  
  56
  
    
public class AddOperator extends Operator {


  		




  57
  57
  
    

  		




  58
  58
  
    
	private ArrayList<Expression> arguments = new ArrayList<Expression>();


  		




  59
  59
  
    

  		




  60
  60
  
    
	public String getName() {


  		




  61
  61
  
    
		return OperationTags.ADD_OP;


  		




  62
  62
  
    
	}


  		




  63
  
  
    
	


  		




  64
  
  
    
	public Object evaluate(Hashtable<String, Value> symbol_table)throws ExpressionException {


  		




  65
  63
  
    

  		




  
  64
  
    
	public AddOperator(Hashtable<String, Value> symbol_table) {


  		




  
  65
  
    
		super(symbol_table);


  		




  
  66
  
    
	}


  		




  
  67
  
    

  		




  
  68
  
    
	public Object evaluate()throws ExpressionException {


  		




  
  69
  
    

  		




  66
  70
  
    
		Double doubleResult = null;


  		




  67
  71
  
    
		Integer intResult = null;


  		




  68
  72
  
    

  		




  69
  73
  
    

  		




  70
  74
  
    
		try {


  		




  71
  75
  
    

  		




  72
  
  
    
			intResult = (Integer)((Expression)arguments.get(0)).evaluate(symbol_table);


  		




  
  76
  
    
			intResult = (Integer)((Expression)arguments.get(0)).evaluate();


  		




  73
  77
  
    
			if (arguments.size() == 1)


  		




  74
  78
  
    
				return intResult;


  		




  75
  79
  
    

  		




  76
  80
  
    
			for (int i = 1; i < arguments.size(); i++){


  		




  77
  81
  
    
				Expression function = (Expression)arguments.get(i);


  		




  78
  
  
    
				intResult += ((Integer)function.evaluate(symbol_table));


  		




  
  82
  
    
				intResult += ((Integer)function.evaluate());


  		




  79
  83
  
    
			}


  		




  80
  84
  
    

  		




  81
  85
  
    
			return intResult;


  		




  82
  
  
    
			


  		




  83
  86
  
    

  		




  
  87
  
    

  		




  84
  88
  
    
		} catch (ClassCastException e) {


  		




  85
  
  
    
			


  		




  86
  
  
    
			doubleResult = new Double(((Expression)arguments.get(0)).evaluate(symbol_table).toString());


  		




  
  89
  
    

  		




  
  90
  
    
			doubleResult = new Double(((Expression)arguments.get(0)).evaluate().toString());


  		




  87
  91
  
    
			if(arguments.size() == 1)


  		




  88
  92
  
    
				return doubleResult;


  		




  89
  93
  
    
			for (int i = 1; i < arguments.size(); i++){


  		




  90
  94
  
    
				Expression function = (Expression)arguments.get(i);


  		




  91
  
  
    
				doubleResult += new Double(((Expression)function).evaluate(symbol_table).toString());


  		




  
  95
  
    
				doubleResult += new Double(((Expression)function).evaluate().toString());


  		




  92
  96
  
    
			}


  		




  93
  97
  
    

  		




  94
  98
  
    
			return doubleResult;


  		




  ......




  97
  101
  
    
	}


  		




  98
  102
  
    

  		




  99
  103
  
    
	public void addArgument(int i, Expression arg) {


  		




  100
  
  
    
		arguments.add(i, arg);	


  		




  
  104
  
    
		arguments.add(i, arg);


  		




  101
  105
  
    
	}


  		




  102
  106
  
    

  		




  103
  107
  
    
	public String getPattern() {


  		




  104
  108
  
    
		return "("+Messages.getString(OperationTags.OPERAND)


  		




  105
  
  
    
		+ OperationTags.ADD_OP +Messages.getString(OperationTags.OPERAND)+ ")\n"+ 


  		




  
  109
  
    
		+ OperationTags.ADD_OP +Messages.getString(OperationTags.OPERAND)+ ")\n"+


  		




  106
  110
  
    
		Messages.getString(OperationTags.OPERAND) +" = "+


  		




  107
  
  
    
		Messages.getString(OperationTags.NUMERIC_VALUE );	


  		




  
  111
  
    
		Messages.getString(OperationTags.NUMERIC_VALUE );


  		




  108
  112
  
    
	}


  		




  109
  113
  
    

  		




  110
  114
  
    
	public ArrayList<Expression> getArguments() {


  		




  ......




  115
  119
  
    
		this.arguments = arguments;


  		




  116
  120
  
    
	}


  		




  117
  121
  
    

  		




  118
  
  
    
	public void check(Hashtable<String, Value> symbol_table) throws ExpressionException {


  		




  
  122
  
    
	public void check() throws ExpressionException {


  		




  119
  123
  
    

  		




  120
  124
  
    
		for (int i = 0; i < arguments.size(); i++) {


  		




  121
  125
  
    
			if(!(arguments.get(i)instanceof NumericalConstant))


  		




  122
  
  
    
				throw new ExpressionException(ExpressionException.CLASS_CASTING_EXCEPTION);	


  		




  
  126
  
    
				throw new ExpressionException(ExpressionException.CLASS_CASTING_EXCEPTION);


  		




  123
  127
  
    
		}


  		




  124
  128
  
    
	}


  		




  125
  129
  
    

  		




  126
  
  
    
	


  		




  127
  130
  
    

  		




  
  131
  
    

  		




  128
  132
  
    
}


  		












Also available in:  Unified diff