Author: peterreilly
Date: Thu Aug 23 01:23:19 2007
New Revision: 568883
URL: http://svn.apache.org/viewvc?rev=568883&view=rev
Log:
sync: bugzilla 43040: incorrect information on when tasks get created
Modified:
ant/core/branches/ANT_17_BRANCH/docs/manual/develop.html
Modified: ant/core/branches/ANT_17_BRANCH/docs/manual/develop.html
URL:
http://svn.apache.org/viewvc/ant/core/branches/ANT_17_BRANCH/docs/manual/develop.html?rev=568883&r1=568882&r2=568883&view=diff
==============================================================================
--- ant/core/branches/ANT_17_BRANCH/docs/manual/develop.html (original)
+++ ant/core/branches/ANT_17_BRANCH/docs/manual/develop.html Thu Aug 23
01:23:19 2007
@@ -76,9 +76,18 @@
<h3>The Life-cycle of a Task</h3>
<ol>
- <li>The task gets instantiated using a no-argument constructor, at parser
- time. This means even tasks that are never executed get
- instantiated.</li>
+ <li>
+ The xml element that contains the tag corresponding to the
+ task gets converted to an UnknownElement at parser time.
+ This UnknownElement gets placed in a list within a target
+ object, or recursivly within another UnknownElement.
+ </li>
+ <li>
+ When the target is executed, each UnknownElement is invoked
+ using an <code>perform()</code> method. This instantiates
+ the task. This means that tasks only gets
+ instantiated at run time.
+ </li>
<li>The task gets references to its project and location inside the
buildfile via its inherited <code>project</code> and
@@ -86,18 +95,18 @@
<li>If the user specified an <code>id</code> attribute to this task,
the project
- registers a reference to this newly created task, at parser
+ registers a reference to this newly created task, at run
time.</li>
<li>The task gets a reference to the target it belongs to via its
inherited <code>target</code> variable.</li>
- <li><code>init()</code> is called at parser time.</li>
+ <li><code>init()</code> is called at run time.</li>
<li>All child elements of the XML element corresponding to this task
are created via this task's <code>createXXX()</code> methods or
instantiated and added to this task via its <code>addXXX()</code>
- methods, at parser time.</li>
+ methods, at run time.</li>
<li>All attributes of this task get set via their corresponding
<code>setXXX</code> methods, at runtime.</li>
@@ -109,10 +118,8 @@
<li>All attributes of all child elements get set via their corresponding
<code>setXXX</code> methods, at runtime.</li>
- <li><a name="execute"><code>execute()</code></a> is called at runtime. While
the above initialization
- steps only occur once, the execute() method may be
- called more than once, if the task is invoked more than once. For example,
- if <code>target1</code> and <code>target2</code> both depend
+ <li><a name="execute"><code>execute()</code></a> is called at runtime.
+ If <code>target1</code> and <code>target2</code> both depend
on <code>target3</code>, then running
<code>'ant target1 target2'</code> will run all tasks in
<code>target3</code> twice.</li>
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