# ManyAssociationWrapper.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.association;

    import java.util.Iterator;
    import java.util.List;
    import java.util.Set;
    import org.qi4j.api.entity.EntityReference;

    /**
     * If you want to catch calls to ManyAssociations, then create a GenericConcern
     * that wraps the Zest-supplied ManyAssociation instance with ManyAssociationWrappers. Override
     * methods to perform your custom code.
     */
    public class ManyAssociationWrapper
        implements ManyAssociation<Object>
    {
        protected ManyAssociation<Object> next;

        public ManyAssociationWrapper( ManyAssociation<Object> next )
        {
            this.next = next;
        }

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

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

        @Override
        public boolean contains( Object entity )
        {
            return next.contains( entity );
        }

        @Override
        public boolean add( int i, Object entity )
        {
            return next.add( i, entity );
        }

        @Override
        public boolean add( Object entity )
        {
            return next.add( entity );
        }

        @Override
        public boolean remove( Object entity )
        {
            return next.remove( entity );
        }

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

        @Override
        public List<Object> toList()
        {
            return next.toList();
        }

        @Override
        public Set<Object> toSet()
        {
            return next.toSet();
        }

        @Override
        public Iterable<EntityReference> references()
        {
            return next.references();
        }

        @Override
        public Iterator<Object> iterator()
        {
            return next.iterator();
        }

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

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

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