Package org.zkoss.zk.scripting.jython

Class JythonInterpreter

java.lang.Object

org.zkoss.zk.scripting.util.GenericInterpreter

org.zkoss.zk.scripting.jython.JythonInterpreter

All Implemented Interfaces:

Interpreter

public class JythonInterpreter
extends GenericInterpreter

The Python interpreter based on jython.

Ludovic Drolez implemented the first Jython interpreter for ZK on May 2007: http://zkforge.svn.sourceforge.net/viewvc/zkforge/trunk/scripting/jython/src/org/zkforge/scripting/jython/

Inspired by Drolez's job, Grace Lin wrote this class on March 2008

Since:

3.0.4

Author:

gracelin

Field Summary

Fields inherited from class org.zkoss.zk.scripting.util.GenericInterpreter

UNDEFINED

Constructor Summary

Constructors

Constructor	Description
JythonInterpreter()

Method Summary

Modifier and Type	Method	Description
void	destroy()	Reset the owner (GenericInterpreter.getOwner()) to null.
protected void	exec(String script)	Executes the specified script.
protected Object	get(String name)	Gets the variable from the interpreter.
Object	getNativeInterpreter()	Returns the native interpreter, or null if not available.
void	init(Page owner, String zslang)	Initializes the interpreter.
protected void	set(String name, Object value)	Sets the variable to the interpreter.
protected void	unset(String name)	Removes the variable from the interpreter.

Methods inherited from class org.zkoss.zk.scripting.util.GenericInterpreter

afterExec, afterInterpret, beforeExec, beforeInterpret, contains, contains, containsVariable, containsVariable, get, getClass, getCurrent, getFromNamespace, getFromNamespace, getFunction, getFunction, getImplicit, getLanguage, getOwner, getVariable, getVariable, interpret, set, setVariable, setVariable, unset, unsetVariable, unsetVariable

Methods inherited from class java.lang.Object

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

Constructor Details

JythonInterpreter

public JythonInterpreter()

Method Details

init

public void init(Page owner,
 String zslang)

Description copied from interface: Interpreter

Initializes the interpreter. It is called once when the new instance of interpreter is constructed.

Specified by:

init in interface Interpreter

Overrides:

init in class GenericInterpreter

zslang - the language this interpreter is associated with

exec

protected void exec(String script)

Description copied from class: GenericInterpreter

Executes the specified script. Deriving class shall provide an implementation of this method, rather than overriding GenericInterpreter.interpret(java.lang.String, org.zkoss.zk.ui.ext.Scope).

Specified by:

exec in class GenericInterpreter

destroy

public void destroy()

Description copied from class: GenericInterpreter

Reset the owner (GenericInterpreter.getOwner()) to null.

Specified by:

destroy in interface Interpreter

Overrides:

destroy in class GenericInterpreter

get

protected Object get(String name)

Description copied from class: GenericInterpreter

Gets the variable from the interpreter. Optional. Implement it if you want to expose variables defined in the interpreter to Java codes.

GenericInterpreter.beforeExec() is called first, before this method is invoked.

An empty (and fake) scope is pushed so GenericInterpreter.getFromNamespace(java.lang.String) always returns null.

Overrides:

get in class GenericInterpreter

set

protected void set(String name,
 Object value)

Description copied from class: GenericInterpreter

Sets the variable to the interpreter. Optional. Implement it if you want to allow Java codes to define a variable in the interpreter.

GenericInterpreter.beforeExec() is called first, before this method is invoked.

Overrides:

set in class GenericInterpreter

unset

protected void unset(String name)

Description copied from class: GenericInterpreter

Removes the variable from the interpreter. Optional. Implement it if you want to allow Java codes to undefine a variable from the interpreter.

GenericInterpreter.beforeExec() is called first, before this method is invoked.

Overrides:

unset in class GenericInterpreter

getNativeInterpreter

public Object getNativeInterpreter()

Description copied from interface: Interpreter

Returns the native interpreter, or null if not available. The native interpreter depends on the implementation of an interpreter.