| /* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under |
| * the terms of the Common Public License v1.0 which accompanies this distribution, |
| * and is available at http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * $Id: NestedTask.java,v 1.1.1.1.2.1 2004/07/08 10:52:10 vlad_r Exp $ |
| */ |
| package com.vladium.emma.ant; |
| |
| import com.vladium.util.IProperties; |
| |
| // ---------------------------------------------------------------------------- |
| /** |
| * @author Vlad Roubtsov, (C) 2003 |
| */ |
| public |
| abstract class NestedTask extends SuppressableTask |
| { |
| // public: ................................................................ |
| |
| // protected: ............................................................. |
| |
| |
| protected NestedTask (final SuppressableTask parent) |
| { |
| if (parent == null) |
| throw new IllegalArgumentException ("null input: parent"); |
| |
| m_parent = parent; |
| } |
| |
| /** |
| * Overrides {@link SuppressableTask#getTaskSettings()} to mix in parent |
| * task settings as the base settings. |
| */ |
| protected final IProperties getTaskSettings () |
| { |
| final IProperties parentSettings = m_parent != null |
| ? m_parent.getTaskSettings () |
| : null; |
| |
| final IProperties taskOverrides = super.getTaskSettings (); |
| |
| // task settings are always more specific than parent settings, but attention |
| // needs to be paid to horizontal inheritance: |
| |
| if (parentSettings == null) |
| return taskOverrides; |
| else |
| { |
| final IProperties settings = IProperties.Factory.combine (taskOverrides, parentSettings); |
| |
| return settings; |
| } |
| } |
| |
| |
| protected final SuppressableTask m_parent; |
| |
| // package: ............................................................... |
| |
| // private: ............................................................... |
| |
| } // end of class |
| // ---------------------------------------------------------------------------- |
