| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * 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. |
| */ |
| |
| package com.intellij.util.config; |
| |
| import org.jetbrains.annotations.NonNls; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| public class ListProperty<T> extends AbstractProperty<List<T>> { |
| private final String myName; |
| |
| public ListProperty(@NonNls String name) { |
| myName = name; |
| } |
| |
| public static <T> ListProperty<T> create(@NonNls String name) { |
| return new ListProperty<T>(name); |
| } |
| |
| public String getName() { |
| return myName; |
| } |
| |
| public List<T> getDefault(AbstractProperty.AbstractPropertyContainer container) { |
| return Collections.emptyList(); |
| } |
| |
| public List<T> copy(List<T> value) { |
| return Collections.unmodifiableList(value); |
| } |
| |
| public ArrayList<T> getModifiableList(AbstractPropertyContainer container) { |
| final ArrayList<T> modifiableList; |
| final List<T> list = get(container); |
| if (list instanceof ArrayList) { |
| modifiableList = (ArrayList<T>)list; |
| } |
| else { |
| modifiableList = new ArrayList<T>(list); |
| set(container, modifiableList); |
| } |
| // remove nulls |
| for (int i = modifiableList.size() - 1; i >= 0; --i) { |
| if (modifiableList.get(i) == null) { |
| modifiableList.remove(i); |
| } |
| } |
| return modifiableList; |
| } |
| |
| public void clearList(AbstractPropertyContainer container) { |
| getModifiableList(container).clear(); |
| } |
| |
| public Iterator<T> getIterator(AbstractPropertyContainer container) { |
| return get(container).iterator(); |
| } |
| } |