001    /**
002     Licensed to the Apache Software Foundation (ASF) under one or more
003     contributor license agreements.  See the NOTICE file distributed with
004     this work for additional information regarding copyright ownership.
005     The ASF licenses this file to You under the Apache License, Version 2.0
006     (the "License"); you may not use this file except in compliance with
007     the License.  You may obtain a copy of the License at
008    
009          http://www.apache.org/licenses/LICENSE-2.0
010    
011     Unless required by applicable law or agreed to in writing, software
012     distributed under the License is distributed on an "AS IS" BASIS,
013     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     See the License for the specific language governing permissions and
015     limitations under the License.
016    */
017    package org.apache.commons.inject.impl;
018    
019    import java.util.List;
020    
021    import org.apache.commons.inject.api.IBinding;
022    import org.apache.commons.inject.api.IKey;
023    
024    
025    public class MutableBindingSet extends AbstractBindingSet implements IMutableBindingSource {
026            public MutableBindingSet() {
027                    super();
028            }
029    
030            public <T> void add(MappedKey<T> pKey, IBinding<T> pBinding) {
031                    final ReducedKey<T> rkey = newReducedKey(pKey);
032                    final List<BindingAndKey<?>> list = findOrCreateList(rkey);
033                    list.add(new BindingAndKey<T>(pBinding, pKey));
034            }
035    
036            @Override
037            public <T> IBinding<T> requireBinding(IKey<T> pKey, String pCause) {
038                    final MappedKey<T> mkey = new MappedKey<T>(pKey.getType(), pKey.getName(), pKey.getAnnotations(), null);
039                    final ReducedKey<T> rkey = newReducedKey(pKey);
040                    final List<BindingAndKey<?>> list = findOrCreateList(rkey);
041                    for (BindingAndKey<?> bak : list) {
042                            if (isMatching(pKey, bak.getKey())) {
043                                    @SuppressWarnings("unchecked")
044                                    final IBinding<T> binding = (IBinding<T>) bak.getBinding();
045                                    return binding;
046                            }
047                    }
048                    final IBinding<T> binding = new BindingProxy<T>(pCause);
049                    list.add(new BindingAndKey<T>(binding, mkey));
050                    return binding;
051            }
052    }