Java Javascript Mozilla Library unwrap(Object obj)

Description

Unwrap a Rhino object (getting the raw java object) and convert undefined to null

License

Apache License

Declaration

public static Object unwrap(Object obj) 

Method Source Code

//package com.java2s;
/*// w  w  w. j  a va2  s.com
 * Copyright 1999-2004 The Apache Software Foundation.
 * 
 * Licensed 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.
 */

import org.mozilla.javascript.Undefined;
import org.mozilla.javascript.Wrapper;

public class Main {
    /**
     * Unwrap a Rhino object (getting the raw java object) and convert undefined to null
     */
    public static Object unwrap(Object obj) {
        if (obj instanceof Wrapper) {
            obj = ((Wrapper) obj).unwrap();
        } else if (obj == Undefined.instance) {
            obj = null;
        }
        return obj;
    }
}

Related

1. toList(AstNode... nodes)
2. toRegExp(String source, String optionsString)
3. toString(Object val)
4. trace(Object object)
5. traceHelper(Function function, Object... args)
6. unwrapNativeArray(final NativeArray na)
7. wrapJavaObj(Object javaObj, Scriptable scope)