org.jage.property.functions
Class SumFunction

java.lang.Object
  org.jage.property.Property
      org.jage.property.functions.PropertyFunction
          org.jage.property.functions.NumericFunction
              org.jage.property.functions.SumFunction

public class SumFunction
extends NumericFunction

Sum property function.

Author:

Tomek

Constructor Summary

SumFunction(String functionName, String argumentsPattern)
Constructor.

Method Summary

protected Object	computeValue(List<FunctionArgument> arguments) Computes function's value.
protected Class<?>	getReturnType() Returns Double.class.

Methods inherited from class org.jage.property.functions.NumericFunction

getArgumentValue

Methods inherited from class org.jage.property.functions.PropertyFunction

getMetaProperty, getValue, setArgumentsResolver, setValue

Methods inherited from class org.jage.property.Property

addMonitor, getMonitoringStrategy, getSimpleProperty, initializeMonitoringStrategy, notifyMonitors, notifyMonitors, objectDeleted, removeMonitor, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SumFunction

public SumFunction(String functionName,
                   String argumentsPattern)

Constructor.

Parameters:

functionName - name of the function.

argumentsPattern - pattern for arguments.

Method Detail

computeValue

protected Object computeValue(List<FunctionArgument> arguments)
                       throws InvalidFunctionArgumentException

Computes function's value. It returns sum of all arguments.

Specified by:

computeValue in class PropertyFunction

Parameters:

arguments - arguments for the function.

Returns:

value of the function.

Throws:

InvalidFunctionArgumentException - one of arguments is not valid.

getReturnType

protected Class<?> getReturnType()

Returns Double.class.

Specified by:

getReturnType in class PropertyFunction

Returns:

class for function's return value.