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Java™ Platform Standard Ed. 6 |
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public interface Invocable
The optional interface implemented by ScriptEngines whose methods allow the invocation of procedures in scripts that have previously been executed.
| Method Summary | ||
|---|---|---|
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getInterface(Class<T> clasz)
Returns an implementation of an interface using functions compiled in the interpreter. |
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getInterface(Object thiz,
Class<T> clasz)
Returns an implementation of an interface using member functions of a scripting object compiled in the interpreter. |
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Object |
invokeFunction(String name,
Object... args)
Used to call top-level procedures and functions defined in scripts. |
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Object |
invokeMethod(Object thiz,
String name,
Object... args)
Calls a method on a script object compiled during a previous script execution, which is retained in the state of the ScriptEngine. |
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| Method Detail |
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Object invokeMethod(Object thiz,
String name,
Object... args)
throws ScriptException,
NoSuchMethodException
ScriptEngine.
name - The name of the procedure to be called.thiz - If the procedure is a member of a class
defined in the script and thiz is an instance of that class
returned by a previous execution or invocation, the named method is
called through that instance.args - Arguments to pass to the procedure. The rules for converting
the arguments to scripting variables are implementation-specific.
ScriptException - if an error occurrs during invocation of the method.
NoSuchMethodException - if method with given name or matching argument types cannot be found.
NullPointerException - if the method name is null.
IllegalArgumentException - if the specified thiz is null or the specified Object is
does not represent a scripting object.
Object invokeFunction(String name,
Object... args)
throws ScriptException,
NoSuchMethodException
args - Arguments to pass to the procedure or function
ScriptException - if an error occurrs during invocation of the method.
NoSuchMethodException - if method with given name or matching argument types cannot be found.
NullPointerException - if method name is null.<T> T getInterface(Class<T> clasz)
invokeFunction method.
clasz - The Class object of the interface to return.
ScriptEngine cannot be found matching
the ones in the requested interface.
IllegalArgumentException - if the specified Class object
is null or is not an interface.
<T> T getInterface(Object thiz,
Class<T> clasz)
invokeMethod method.
thiz - The scripting object whose member functions are used to implement the methods of the interface.clasz - The Class object of the interface to return.
ScriptEngine cannot be found matching
the ones in the requested interface.
IllegalArgumentException - if the specified Class object
is null or is not an interface, or if the specified Object is
null or does not represent a scripting object.
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Java™ Platform Standard Ed. 6 |
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