org.zkoss.zk.scripting.jython
Class JythonInterpreter

java.lang.Object
  extended by org.zkoss.zk.scripting.util.GenericInterpreter
      extended by 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
JythonInterpreter()
           
 
Method Summary
 void destroy()
          Reset the owner (GenericInterpreter.getOwner()) to null.
protected  void exec(java.lang.String script)
          Executes the specified script.
protected  java.lang.Object get(java.lang.String name)
          Gets the variable from the interpreter.
 java.lang.Object getNativeInterpreter()
          Returns the native interpreter, or null if not available.
 void init(Page owner, java.lang.String zslang)
          Initializes the interpreter.
protected  void set(java.lang.String name, java.lang.Object value)
          Sets the variable to the interpreter.
protected  void unset(java.lang.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 Detail

JythonInterpreter

public JythonInterpreter()
Method Detail

init

public void init(Page owner,
                 java.lang.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(java.lang.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 java.lang.Object get(java.lang.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(java.lang.String name,
                   java.lang.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(java.lang.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 java.lang.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.



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