com.pdmfc.tea.modules.tos
Class STosUtil

java.lang.Object
  |
  +--com.pdmfc.tea.modules.tos.STosUtil

public class STosUtil

extends java.lang.Object

This class implements some utility methods to be used by derived classes.

Field Summary

static SObjSymbol

_callbackName The name of variable with the missing function callback action.

Constructor Summary

STosUtil()

Method Summary

static STosClass	getClass(SContext context, java.lang.Object[] args, int index) Retrieves an STosClass object.
static STosClass	getClass(SContext context, SObjSymbol className) Fetches a class object.
static STosObj	getTosObj(java.lang.Object[] args, int index) Tries to cast one of the elements in the args array into an STosObj.
static STosObj	newInstance(SObjSymbol className, SContext context)
static STosObj	newInstance(SObjSymbol className, SContext context, java.lang.Object[] constructorArgs)

Methods inherited from class java.lang.Object

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

Field Detail

_callbackName

public static final SObjSymbol _callbackName

The name of variable with the missing function callback action.

Constructor Detail

STosUtil

public STosUtil()

Method Detail

getTosObj

public static STosObj getTosObj(java.lang.Object[] args,
                                int index)
                         throws STypeException

Tries to cast one of the elements in the args array into an STosObj.

Parameters:

args - Array of STObj that is tipically the array of arguments passed to a Tea function.

index - Index into the args array of the element to fetch.

Returns:

The element at the index position of the args array.

Throws:

com.pdmfc.tea.runtime.STTypeException - Throw if the element at the index position of the args array is not an STosObj.

getClass

public static STosClass getClass(SContext context,
                                 java.lang.Object[] args,
                                 int index)
                          throws STeaException

Retrieves an STosClass object. This is referenced by args[index], which is either the STosClass object we are looking for or a symbol. In this later case there should be a variable referenced by that symbol containing the STosClass.

Parameters:

context - The context where we will look for a variable, if necessary.

args - Array of STObj.

index - An index into the args array.

Throws:

com.pdmfc.tea.modules.tos.STosNoSuchClassException - Thrown if the STosClass object could not be retrieved.

getClass

public static STosClass getClass(SContext context,
                                 SObjSymbol className)
                          throws STeaException

Fetches a class object.

Parameters:

context - Context where the class will be searched and its constructor invoked.

className - Symbol identifying the class.

newInstance

public static STosObj newInstance(SObjSymbol className,
                                  SContext context,
                                  java.lang.Object[] constructorArgs)
                           throws STeaException

newInstance

public static STosObj newInstance(SObjSymbol className,
                                  SContext context)
                           throws STeaException