Revision 44138 trunk/org.gvsig.desktop/org.gvsig.desktop.library/org.gvsig.expressionevaluator/org.gvsig.expressionevaluator.lib/org.gvsig.expressionevaluator.lib.impl/src/main/java/org/gvsig/expressionevaluator/impl/function/programming/IFNULLFunction.java

View differences:

IFNULLFunction.java
1 
package org.gvsig.expressionevaluator.impl.function.obj;
1 
package org.gvsig.expressionevaluator.impl.function.programming;
2 2 

  		




  3
  3
  
    
import org.apache.commons.lang3.Range;


  		




  4
  
  
    
import org.gvsig.expressionevaluator.Code.Caller.Arguments;


  		




  
  4
  
    
import org.gvsig.expressionevaluator.Codes;


  		




  5
  5
  
    
import org.gvsig.expressionevaluator.Function;


  		




  6
  6
  
    
import org.gvsig.expressionevaluator.Interpreter;


  		




  7
  7
  
    
import org.gvsig.expressionevaluator.spi.AbstractFunction;


  		




  8
  8
  
    

  		




  
  9
  
    

  		




  9
  10
  
    
public class IFNULLFunction extends AbstractFunction {


  		




  10
  11
  
    

  		




  11
  12
  
    
    public IFNULLFunction() {


  		




  12
  
  
    
        super(


  		




  13
  
  
    
                Function.GROUP_OTHER, 


  		




  
  13
  
    
        super(Function.GROUP_BOOLEAN, 


  		




  14
  14
  
    
                "IFNULL", 


  		




  15
  15
  
    
                Range.is(3),


  		




  16
  16
  
    
                "The IFNULL() function tests if a specified value is null and returns one of two values, based on whether the value is null was true or false.",


  		




  ......




  27
  27
  
    
    }


  		




  28
  28
  
    

  		




  29
  29
  
    
    @Override


  		




  
  30
  
    
    public boolean allowConstantFolding() {


  		




  
  31
  
    
        return false;


  		




  
  32
  
    
    }


  		




  
  33
  
    
    


  		




  
  34
  
    
    @Override


  		




  30
  35
  
    
    public Object call(Interpreter interpreter, Object[] args) throws Exception {


  		




  31
  36
  
    
        throw new UnsupportedOperationException("Not supported yet."); 


  		




  32
  37
  
    
    }


  		




  33
  38
  
    
    


  		




  34
  39
  
    
    @Override


  		




  35
  
  
    
    public Object call(Interpreter interpreter, Arguments args) throws Exception {


  		




  
  40
  
    
    public Object call(Interpreter interpreter, Codes args) throws Exception {


  		




  36
  41
  
    
        Object value = getObject(interpreter, args, 0);


  		




  37
  42
  
    
        if( value == null ) {


  		




  38
  43
  
    
            value = getObject(interpreter, args, 1);


  		












Also available in:  Unified diff