com.ds.common.expression.function

接口 FunctionI

所有已知实现类:

AbstracRepearEventFunction, AbstractFunction, Add, Comparative, DefaultFunction, Divide, EVALFunction, Function, GetAllOrgs, GetAppClient, GetClientService, GetCTX, GetCurrPerson, GetHttpRequest, GetJDSClient, GetORGClient, GetR, GetSplit, GetSplits, IIf, Logical, Modulus, Multiply, Not, Power, RemoteAdminFunction, RemoteClientFunction, RemoteFunction, RepeatClusterEvent, Subtract, Sum, UMinus

public interface FunctionI

All the function classes must implement this interface to ensure that the run() method is implemented.

方法概要

限定符和类型	方法和说明
int	getNumberOfParameters() Returns the number of required parameters, or -1 if any number of parameters is allowed.
void	run(Stack aStack) Run the function on the stack.
void	setCurNumberOfParameters(int n) Sets the number of current number of parameters used in the next call of run().

方法详细资料

run

void run(Stack aStack)
  throws ParseException

Run the function on the stack. Pops the arguments from the stack, and pushes the result on the top of the stack.

抛出:

ParseException

getNumberOfParameters

int getNumberOfParameters()

Returns the number of required parameters, or -1 if any number of parameters is allowed.

setCurNumberOfParameters

void setCurNumberOfParameters(int n)

Sets the number of current number of parameters used in the next call of run(). This method is only called when the reqNumberOfParameters is -1.