# PropertyWrapper.java

    /*
     * 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.
     */
    package org.qi4j.api.property;

    /**
     * If you want to catch getting and setting properties, then create a GenericConcern
     * that wraps the Zest-supplied Property instance with PropertyWrappers. Override
     * get() and/or set() to perform your custom code.
     */
    public class PropertyWrapper
        implements Property<Object>
    {
        protected Property<Object> next;

        public PropertyWrapper( Property<Object> next )
        {
            this.next = next;
        }

        public Property<Object> next()
        {
            return next;
        }

        @Override
        public Object get()
        {
            return next.get();
        }

        @Override
        public void set( Object newValue )
            throws IllegalArgumentException, IllegalStateException
        {
            next.set( newValue );
        }

        @Override
        public int hashCode()
        {
            return next.hashCode();
        }

        @Override
        public boolean equals( Object obj )
        {
            return next.equals( obj );
        }

        @Override
        public String toString()
        {
            return next.toString();
        }
    }