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Commons Collections example source code file (LazyList.java)
The Commons Collections LazyList.java source code/*
* 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.apache.commons.collections.list;
import java.util.List;
import org.apache.commons.collections.Factory;
/**
* Decorates another <code>List to create objects in the list on demand.
* <p>
* When the {@link #get(int)} method is called with an index greater than
* the size of the list, the list will automatically grow in size and return
* a new object from the specified factory. The gaps will be filled by null.
* If a get method call encounters a null, it will be replaced with a new
* object from the factory. Thus this list is unsuitable for storing null
* objects.
* <p>
* For instance:
*
* <pre>
* Factory factory = new Factory() {
* public Object create() {
* return new Date();
* }
* }
* List lazy = LazyList.decorate(new ArrayList(), factory);
* Object obj = lazy.get(3);
* </pre>
*
* After the above code is executed, <code>obj will contain
* a new <code>Date instance. Furthermore, that
Other Commons Collections examples (source code examples)Here is a short list of links related to this Commons Collections LazyList.java source code file: |
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