| java.lang.Object
 org.mozilla.javascript.Delegator
All known Subclasses: org.mozilla.javascript.Synchronizer,
| Delegator | | public class Delegator implements Function(Code) | | This is a helper class for implementing wrappers around Scriptable
objects. It implements the Function interface and delegates all
invocations to a delegee Scriptable object. The normal use of this
class involves creating a sub-class and overriding one or more of
the methods.
A useful application is the implementation of interceptors,
pre/post conditions, debugging.
See Also: Function
See Also: Scriptable
author:
Matthias Radestock |
| Constructor Summary | |
| public | Delegator()
Create a Delegator prototype. | | public | Delegator(Scriptable obj)
Create a new Delegator that forwards requests to a delegee
Scriptable object. |
| Method Summary | |
| public Object | call(Context cx, Scriptable scope, Scriptable thisObj, Object[] args)
| | public Scriptable | construct(Context cx, Scriptable scope, Object[] args)
Note that if the delegee is null,
this method creates a new instance of the Delegator itself
rathert than forwarding the call to the
delegee. | | public void | delete(String name)
| | public void | delete(int index)
| | public Object | get(String name, Scriptable start)
| | public Object | get(int index, Scriptable start)
| | public String | getClassName()
| | public Object | getDefaultValue(Class hint)
Note that this method does not get forwarded to the delegee if
the hint parameter is null,
ScriptRuntime.ScriptableClass or
ScriptRuntime.FunctionClass. | | public Scriptable | getDelegee()
Retrieve the delegee. | | public Object[] | getIds()
| | public Scriptable | getParentScope()
| | public Scriptable | getPrototype()
| | public boolean | has(String name, Scriptable start)
| | public boolean | has(int index, Scriptable start)
| | public boolean | hasInstance(Scriptable instance)
| | protected Delegator | newInstance()
Crete new Delegator instance. | | public void | put(String name, Scriptable start, Object value)
| | public void | put(int index, Scriptable start, Object value)
| | public void | setDelegee(Scriptable obj)
Set the delegee. | | public void | setParentScope(Scriptable parent)
| | public void | setPrototype(Scriptable prototype)
|
| construct | | public Scriptable construct(Context cx, Scriptable scope, Object[] args)(Code) | | Note that if the delegee is null,
this method creates a new instance of the Delegator itself
rathert than forwarding the call to the
delegee. This permits the use of Delegator
prototypes.
Parameters:
cx - the current Context for this thread
Parameters:
scope - an enclosing scope of the caller exceptwhen the function is called from a closure.
Parameters:
args - the array of arguments the allocated object
See Also: Function.construct(ContextScriptableObject[]) |
| getDefaultValue | | public Object getDefaultValue(Class hint)(Code) | | Note that this method does not get forwarded to the delegee if
the hint parameter is null,
ScriptRuntime.ScriptableClass or
ScriptRuntime.FunctionClass. Instead the object
itself is returned.
Parameters:
hint - the type hint the default value
See Also: org.mozilla.javascript.Scriptable.getDefaultValue |
| getDelegee | | public Scriptable getDelegee()(Code) | | Retrieve the delegee.
the delegee |
|
|