/*****************************************************************************
* Licensed to the Apache Software Foundation (ASF) under one *
* or more contributor license agreements. See the NOTICE file *
* distributed with this work for additional information *
* regarding copyright ownership. The ASF licenses this file *
* to you under the Apache License, Version 2.0 (the *
* "License"); you may not use this file except in compliance *
* with the License. You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, *
* software distributed under the License is distributed on an *
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
* KIND, either express or implied. See the License for the *
* specific language governing permissions and limitations *
* under the License. *
* *
* *
* This file is part of the BeanShell Java Scripting distribution. *
* Documentation and updates may be found at http://www.beanshell.org/ *
* Patrick Niemeyer (pat@pat.net) *
* Author of Learning Java, O'Reilly & Associates *
* *
*****************************************************************************/
package bsh;
import bsh.
Capabilities.
Unavailable;
import java.lang.reflect.
InvocationTargetException;
public abstract class
ClassGenerator
{
private static
ClassGenerator cg;
public static
ClassGenerator getClassGenerator()
throws
UtilEvalError
{
if (
cg == null )
{
try {
Class clas =
Class.
forName( "bsh.ClassGeneratorImpl" );
cg = (
ClassGenerator)
clas.
newInstance();
} catch (
Exception e ) {
throw new
Unavailable("ClassGenerator unavailable: "+
e);
}
}
return
cg;
}
/**
Parse the BSHBlock for the class definition and generate the class.
*/
public abstract
Class generateClass(
String name,
Modifiers modifiers,
Class []
interfaces,
Class superClass,
BSHBlock block,
boolean
isInterface,
CallStack callstack,
Interpreter interpreter
)
throws
EvalError;
/**
Invoke a super.method() style superclass method on an object instance.
This is not a normal function of the Java reflection API and is
provided by generated class accessor methods.
*/
public abstract
Object invokeSuperclassMethod(
BshClassManager bcm,
Object instance,
String methodName,
Object []
args
)
throws
UtilEvalError,
ReflectError,
InvocationTargetException;
/**
Change the parent of the class instance namespace.
This is currently used for inner class support.
Note: This method will likely be removed in the future.
*/
public abstract void
setInstanceNameSpaceParent(
Object instance,
String className,
NameSpace parent );
}