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Difference between revisions of "EDT:Working with custom types"

Line 41: Line 41:
 
<source lang="java">
 
<source lang="java">
 
program prog
 
program prog
 +
 +
// variables and constants can be here
 +
 +
// this function is the entrypoint
 
function main()
 
function main()
−
test(colorEnumeration.RED);
+
printColorName(colorEnumeration.RED);
 
end
 
end
 
 
−
function test(color colorEnumeration)
+
function printColorName(color colorEnumeration)
 
case (color)
 
case (color)
 
when(colorEnumeration.RED)
 
when(colorEnumeration.RED)
Line 57: Line 61:
 
end
 
end
 
end
 
end
 +
 +
// other functions can go here
 
end
 
end
−
</source>  
+
</source>
  
 
= <br> Record  =
 
= <br> Record  =

Revision as of 16:28, 20 February 2012

Your custom types are based on these EGL classifiers:

Delegate, Enumeration, ExternalType, Handler,
Interface, Library, Program, Record, Service

Delegate


Enumeration

The following enumeration defines three possible values. See the example program for using this enumeration. 

enumeration colorEnumeration
	RED,
	GREEN,
	BLUE
end


ExternalType


Handler


Interface

The following Interface type reflects the MyService type shown in Service: 
Interface IMyService
   Function calculate(theList INT[] IN) 
            returns(BIN (4,2));
 
   // other function prototypes are here
end


Library


Program

This basic program uses the sample enumeration. 

program prog
 
	// variables and constants can be here
 
	// this function is the entrypoint
	function main()
		printColorName(colorEnumeration.RED);
	end
 
	function printColorName(color colorEnumeration)
		case (color)
			when(colorEnumeration.RED)
				syslib.writestdout("red");
			when(colorEnumeration.GREEN)
				syslib.writestdout("green");
			when(colorEnumeration.BLUE)
				syslib.writestdout("blue");
			otherwise
				syslib.writestdout("unknown");
		end
	end
 
	// other functions can go here
end


Record


Service

Service MyService
 
   // variables and constants can be here
 
   function calculate(myScore Int[] in) returns (Decimal (4,2)) 
 
      numberOfScores, i, mySum Int;
      numberOfScores = myScore.getSize();
 
      for (i from 1 to numberOfScores by 1)
         mySum = myScore[i] + mySum;	       
      end
 
      return(mySum/numberOfScores);
   end
 
   // other functions are here
 
end



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