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## bsh
Class This

    java.lang.Object
      bsh.This

All Implemented Interfaces:
  java.lang.Runnable, java.io.Serializable

public class This
extends java.lang.Object
implements java.io.Serializable, java.lang.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.

See Also:
  Serialized Form

Constructor Summary
`protected` | `This(NameSpace namespace, Interpreter declaringInterpreter)`

Method Summary
`static void` | `bind(This ths, NameSpace namespace, Interpreter declaringInterpreter)` Bind a This reference to a parent's namespace with the specified declaring interpreter.
`java.lang.Object` | `getInterface(java.lang.Class clas)` Get a version of this scripted object implementing the specified interface.
`java.lang.Object` | `getInterface(java.lang.Class[] ca)` Get a version of this scripted object implementing the specified interfaces.
`NameSpace` | `getNameSpace()`
`java.lang.Object` | `invokeMethod(java.lang.String name, java.lang.Object[] args)` Invoke specified method as from outside java code, using the declaring interpreter and current namespace.
`java.lang.Object` | `invokeMethod(java.lang.String methodName, java.lang.Object[] args, Interpreter interpreter, CallStack callstack, bsh.SimpleNode callerInfo, boolean declaredOnly)` Invoke a method in this namespace with the specified args, interpreter reference, callstack, and caller info.
`void` | `run()`
`java.lang.String` | `toString()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### This

    protected This(NameSpace namespace,
                   Interpreter declaringInterpreter)

Method Detail

### getInterface

    public java.lang.Object getInterface(java.lang.Class clas)
                                  throws UtilEvalError

  Get a version of this scripted object implementing the specified interface.

  Throws:
    `UtilEvalError`

### getInterface

    public java.lang.Object getInterface(java.lang.Class[] ca)
                                  throws UtilEvalError

  Get a version of this scripted object implementing the specified interfaces.

  Throws:
    `UtilEvalError`

### getNameSpace

    public NameSpace getNameSpace()

### toString

    public java.lang.String toString()

### run

    public void run()

  Specified by:
    `run` in interface `java.lang.Runnable`

### invokeMethod

    public java.lang.Object invokeMethod(java.lang.String name,
                                         java.lang.Object[] args)
                                  throws EvalError

  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.

  Throws:
    `EvalError`
  See Also:
    `Primitive`

### invokeMethod

    public java.lang.Object invokeMethod(java.lang.String methodName,
                                         java.lang.Object[] args,
                                         Interpreter interpreter,
                                         CallStack callstack,
                                         bsh.SimpleNode callerInfo,
                                         boolean declaredOnly)
                                  throws EvalError

  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() meta-method will not catch the Object protocol methods (toString(), hashCode()...). If you want to override them you have to script them directly.

  Parameters:
    `declaredOnly` - if true then only methods declared directly in the namespace will be visible - no inherited or imported methods will be visible.
  Throws:
    `EvalError`
  See Also:
    `bsh.This.invokeMethod( String methodName, Object [] args, Interpreter interpreter, CallStack callstack, SimpleNode callerInfo )`, `Primitive`

### 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)

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