edu.wpi.cs.dsrg.xmldb.xat.common.operator.specialoperator.function
Class FunMIN

java.lang.Object
  |
  +--edu.wpi.cs.dsrg.xmldb.xat.common.operator.specialoperator.function.FunCall
        |
        +--edu.wpi.cs.dsrg.xmldb.xat.common.operator.specialoperator.function.FunMIN

public class FunMIN
extends FunCall

The FunMIN class. It's an aggregation function. Find the minimum value of a specific column in the input table. It take one whole column, but only generate one value as a result.

Since:
1.0

Constructor Summary
FunMIN()
           
 
Method Summary
 java.lang.Object exec(java.util.Vector deRefParamV)
          Execution method for FunMIN.
 
Methods inherited from class edu.wpi.cs.dsrg.xmldb.xat.common.operator.specialoperator.function.FunCall
eval, iterator
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

FunMIN

public FunMIN()
Method Detail

exec

public java.lang.Object exec(java.util.Vector deRefParamV)
                      throws java.lang.Exception
Execution method for FunMIN. We have to assume the string value in the XATTable is a double number.
Overrides:
exec in class FunCall
Parameters:
deRefParamV - are the parameters
Returns:
the result of execution.
Throws:
java.lang.Exception -  
Since:
1.0