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Commons Collections example source code file (TransformedBuffer.java)
The Commons Collections TransformedBuffer.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.buffer; import org.apache.commons.collections.Buffer; import org.apache.commons.collections.Transformer; import org.apache.commons.collections.collection.TransformedCollection; /** * Decorates another <code>Buffer to transform objects that are added. * <p> * The add methods are affected by this class. * Thus objects must be removed or searched for using their transformed form. * For example, if the transformation converts Strings to Integers, you must * use the Integer form to remove objects. * <p> * This class is Serializable from Commons Collections 3.1. * * @since Commons Collections 3.0 * @version $Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $ * * @author Stephen Colebourne */ public class TransformedBuffer extends TransformedCollection implements Buffer { /** Serialization version */ private static final long serialVersionUID = -7901091318986132033L; /** * Factory method to create a transforming buffer. * <p> * If there are any elements already in the buffer being decorated, they * are NOT transformed. * * @param buffer the buffer to decorate, must not be null * @param transformer the transformer to use for conversion, must not be null * @return a new transformed Buffer * @throws IllegalArgumentException if buffer or transformer is null */ public static Buffer decorate(Buffer buffer, Transformer transformer) { return new TransformedBuffer(buffer, transformer); } //----------------------------------------------------------------------- /** * Constructor that wraps (not copies). * <p> * If there are any elements already in the buffer being decorated, they * are NOT transformed. * * @param buffer the buffer to decorate, must not be null * @param transformer the transformer to use for conversion, must not be null * @throws IllegalArgumentException if buffer or transformer is null */ protected TransformedBuffer(Buffer buffer, Transformer transformer) { super(buffer, transformer); } /** * Gets the decorated buffer. * * @return the decorated buffer */ protected Buffer getBuffer() { return (Buffer) collection; } //----------------------------------------------------------------------- public Object get() { return getBuffer().get(); } public Object remove() { return getBuffer().remove(); } } Other Commons Collections examples (source code examples)Here is a short list of links related to this Commons Collections TransformedBuffer.java source code file: |
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