com.pdmfc.tea.runtime
Class SObjBlock

java.lang.Object
  |
  +--com.pdmfc.tea.runtime.SObjBlock

public class SObjBlock

extends java.lang.Object

This class represents a block of code. Associated with every block is the context where it was created.

Constructor Summary

SObjBlock(SContext context, SCode code)
Initializes the block object.

Method Summary

java.lang.Object	exec() Executes the block in a new context which is an imediate descendent of the context where the block was created.
java.lang.Object	exec(SContext aContext) Executes the block in the context given as argument.
SContext	getContext() The context where the block was created.

Methods inherited from class java.lang.Object

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

Constructor Detail

SObjBlock

public SObjBlock(SContext context,
                 SCode code)

Initializes the block object.

Parameters:

context - The context where the block is being created.

code - List of statements that form the block of code.

Method Detail

getContext

public SContext getContext()

The context where the block was created.

Returns:

A reference to the object refering to the context where the block was created.

exec

public java.lang.Object exec(SContext aContext)
                      throws STeaException

Executes the block in the context given as argument. New variables are created inside that context.

Parameters:

aContext - Context inside which the block will be executed.

Returns:

The value returned by the last statement in the block.

Throws:

STeaException - Thrown if something happened while executing the statements that form the block.

exec

public java.lang.Object exec()
                      throws STeaException

Executes the block in a new context which is an imediate descendent of the context where the block was created.

Returns:

The value returned by the execution of last statement in the block. Null if the block had no statements.

Throws:

STeaException - Thrown if something happened while executing the statements that form the block.