org.mozilla.javascript
Interface Function
- All Known Implementing Classes:
- org.mozilla.javascript.NativeFunction
- public interface Function
- extends Scriptable
This is interface that all functions in JavaScript must implement.
The interface provides for calling functions and constructors.
- Author:
- Norris Boyd
- See Also:
Scriptable
Methods inherited from interface org.mozilla.javascript.Scriptable |
delete,
delete,
get,
get,
getClassName,
getDefaultValue,
getIds,
getParentScope,
getPrototype,
has,
has,
hasInstance,
put,
put,
setParentScope,
setPrototype |
call
public java.lang.Object call(Context cx,
Scriptable scope,
Scriptable thisObj,
java.lang.Object[] args)
throws JavaScriptException
- Call the function.
Note that the array of arguments is not guaranteed to have
length greater than 0.
- Parameters:
cx
- the current Context for this threadscope
- the scope to execute the function relative to. This is
set to the value returned by getParentScope() except
when the function is called from a closure.thisObj
- the JavaScript this
objectargs
- the array of arguments- Returns:
- the result of the call
- Throws:
- JavaScriptException - if an uncaught exception
occurred while executing the function
construct
public Scriptable construct(Context cx,
Scriptable scope,
java.lang.Object[] args)
throws JavaScriptException
- Call the function as a constructor.
This method is invoked by the runtime in order to satisfy a use
of the JavaScript
new
operator. This method is
expected to create a new object and return it.
- Parameters:
cx
- the current Context for this threadscope
- an enclosing scope of the caller except
when the function is called from a closure.args
- the array of arguments- Returns:
- the allocated object
- Throws:
- JavaScriptException - if an uncaught exception
occurred while executing the constructor