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

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OrOperator.java
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/**


  		




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 * Implements the funcionality of the Or operator


  		




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 * 


  		




  
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 *


  		




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


  		




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 *


  		




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 */


  		




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public class OrOperator implements Expression {


  		




  
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public class OrOperator extends Operator {


  		




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


  		




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	public String getName() {


  		




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		return OperationTags.OR_OP;


  		




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	}


  		




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


  		




  
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	public OrOperator(Hashtable<String, Value> symbol_table) {


  		




  
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		super(symbol_table);


  		




  
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	}


  		




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	public Object evaluate() throws ExpressionException{


  		




  
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		boolean result = false;


  		




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


  		




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


  		




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			result = result || ((Boolean)((Expression)function).evaluate(symbol_table)).booleanValue();


  		




  
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			result = result || ((Boolean)((Expression)function).evaluate()).booleanValue();


  		




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		}


  		




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		return result;


  		




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	}


  		




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	public String getPattern() {


  		




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


  		




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		+ OperationTags.OR_OP +Messages.getString(OperationTags.OPERAND)+ ")\n"+ 


  		




  
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		+ OperationTags.OR_OP +Messages.getString(OperationTags.OPERAND)+ ")\n"+


  		




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


  		




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		Messages.getString(OperationTags.BOOLEAN_VALUE);	


  		




  
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		Messages.getString(OperationTags.BOOLEAN_VALUE);


  		




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		}


  		




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	public ArrayList<Expression> getArguments() {


  		




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		return arguments;


  		




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		this.arguments = arguments;


  		




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	}


  		




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


  		




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	public void check() throws ExpressionException {


  		




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


  		




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			if(!(arguments.get(i).evaluate(symbol_table)instanceof Boolean))


  		




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				throw new ExpressionException(ExpressionException.CLASS_CASTING_EXCEPTION);	


  		




  
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			if(!(arguments.get(i).evaluate()instanceof Boolean))


  		




  
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				throw new ExpressionException(ExpressionException.CLASS_CASTING_EXCEPTION);


  		




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		}


  		




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	}


  		




  
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}


  		












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