bsh

Class This

public class This extends Object implements Serializable, Runnable

'This' is the type of bsh scripted objects. A 'This' object is a bsh scripted object context. It holds a namespace reference and implements event listeners and various other interfaces. This holds a reference to the declaring interpreter for callbacks from outside of bsh.
Constructor Summary
protected This(NameSpace namespace, Interpreter declaringInterpreter)
Method Summary
static voidbind(This ths, NameSpace namespace, Interpreter declaringInterpreter)
Bind a This reference to a parent's namespace with the specified declaring interpreter.
ObjectgetInterface(Class clas)
Get a version of this scripted object implementing the specified interface.
ObjectgetInterface(Class[] ca)
Get a version of this scripted object implementing the specified interfaces.
NameSpacegetNameSpace()
ObjectinvokeMethod(String name, Object[] args)
Invoke specified method as from outside java code, using the declaring interpreter and current namespace.
ObjectinvokeMethod(String methodName, Object[] args, Interpreter interpreter, CallStack callstack, SimpleNode callerInfo)
Invoke a method in this namespace with the specified args, interpreter reference, callstack, and caller info.
voidrun()
StringtoString()

Constructor Detail

This

protected This(NameSpace namespace, Interpreter declaringInterpreter)

Method Detail

bind

public static void bind(This ths, NameSpace namespace, Interpreter declaringInterpreter)
Bind a This reference to a parent's namespace with the specified declaring interpreter. Also re-init the callstack. It's necessary to bind a This reference before it can be used after deserialization. This is used by the bsh load() command.

This is a static utility method because it's used by a bsh command bind() and the interpreter doesn't currently allow access to direct methods of This objects (small hack)

getInterface

public Object getInterface(Class clas)
Get a version of this scripted object implementing the specified interface.

getInterface

public Object getInterface(Class[] ca)
Get a version of this scripted object implementing the specified interfaces.

getNameSpace

public NameSpace getNameSpace()

invokeMethod

public Object invokeMethod(String name, Object[] args)
Invoke specified method as from outside java code, using the declaring interpreter and current namespace. The call stack will indicate that the method is being invoked from outside of bsh in native java code. Note: you must still wrap/unwrap args/return values using Primitive/Primitive.unwrap() for use outside of BeanShell.

See Also: Primitive

invokeMethod

public Object invokeMethod(String methodName, Object[] args, Interpreter interpreter, CallStack callstack, SimpleNode callerInfo)
Invoke a method in this namespace with the specified args, interpreter reference, callstack, and caller info.

Note: If you use this method outside of the bsh package and wish to use variables with primitive values you will have to wrap them using bsh.Primitive. Consider using This getInterface() to make a true Java interface for invoking your scripted methods.

This method also implements the default object protocol of toString(), hashCode() and equals() and the invoke() meta-method handling as a last resort.

Note: the invoke() method will not catch the object method (toString, ...). If you want to override them you have to script them directly.

Parameters: if callStack is null a new CallStack will be created and initialized with this namespace.

See Also: bsh.This.invokeMethod( String methodName, Object [] args, Interpreter interpreter, CallStack callstack, SimpleNode callerInfo ) Primitive

run

public void run()

toString

public String toString()
B) 2000 pat@pat.net :-)