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<!-- Generated by javadoc on Sat Dec 16 22:19:46 EST 2000 --> |
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: Interface Task |
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SUMMARY: INNER | <A HREF="#field_summary">FIELD</A> | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD> |
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<!-- ======== START OF CLASS DATA ======== --> |
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<H2> |
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<FONT SIZE="-1"> |
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org.apache.ant.tasks</FONT> |
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Interface Task</H2> |
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<HR> |
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<DL> |
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<DT>public interface <B>Task</B></DL> |
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<P> |
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Task is the core interface for all structures that will be processed by the |
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TaskEngine. |
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<P> |
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<!-- ======== INNER CLASS SUMMARY ======== --> |
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<!-- =========== FIELD SUMMARY =========== --> |
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<TD COLSPAN=2><FONT SIZE="+2"> |
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<B>Field Summary</B></FONT></TD> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE>static int</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#EXECUTION_MODE_EXPLICIT">EXECUTION_MODE_EXPLICIT</A></B></CODE> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE>static int</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#EXECUTION_MODE_IMPLICIT">EXECUTION_MODE_IMPLICIT</A></B></CODE> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE>static int</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#EXECUTION_MODE_PRIORITY">EXECUTION_MODE_PRIORITY</A></B></CODE> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE>static char</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#NAME_SEPARATOR">NAME_SEPARATOR</A></B></CODE> |
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</TD> |
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</TABLE> |
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<!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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<!-- ========== METHOD SUMMARY =========== --> |
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<A NAME="method_summary"><!-- --></A> |
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<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"> |
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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<TD COLSPAN=2><FONT SIZE="+2"> |
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<B>Method Summary</B></FONT></TD> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#execute(org.apache.ant.engine.TaskEngine)">execute</A></B>(org.apache.ant.engine.TaskEngine engine)</CODE> |
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<BR> |
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Causes the existing Task implementation to execute.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> java.lang.String</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#getAttributeValue(java.lang.String)">getAttributeValue</A></B>(java.lang.String name)</CODE> |
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<BR> |
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Each Task will hold its attributes in some manner.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> <A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A>[]</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#getChildren()">getChildren</A></B>()</CODE> |
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Returns the an array of Task objects that are subordinate to this Task.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> int</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#getExecutionMode()">getExecutionMode</A></B>()</CODE> |
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<BR> |
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Determines whether this Task is executed whenever its parent is executed, |
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or if its execution must be specifically requested.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> java.lang.String</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#getFullyQualifiedName()">getFullyQualifiedName</A></B>()</CODE> |
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<BR> |
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The "fully-qualified" name of a Task is the Task's name, prepended by its |
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parent's name, prepended by its parent's name, etc.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> <A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A></CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#getParent()">getParent</A></B>()</CODE> |
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<BR> |
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Returns this Task's parent Task.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> <A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A></CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#getRootTask()">getRootTask</A></B>()</CODE> |
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<BR> |
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Proceed backwards through the nodes until we come across the first Task |
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in the tree.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> <A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A></CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#getTask(java.lang.String)">getTask</A></B>(java.lang.String taskPath)</CODE> |
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<BR> |
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A mechanism for locating a task relative to the current task.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> java.lang.String</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#getTaskName()">getTaskName</A></B>()</CODE> |
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<BR> |
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Just a simple name used to identify a Task.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#init(org.apache.ant.engine.TaskEngine)">init</A></B>(org.apache.ant.engine.TaskEngine engine)</CODE> |
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<BR> |
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Called when the Task first gets "noticed" by the TaskEngine.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> boolean</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#isPropertyContainer()">isPropertyContainer</A></B>()</CODE> |
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<BR> |
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Determines whether a Task is suitable for holding property values.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#setParent(org.apache.ant.tasks.Task)">setParent</A></B>(<A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A> parent)</CODE> |
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<BR> |
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Sets the Task's parent.</TD> |
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</TR> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../org/apache/ant/tasks/Task.html#validate()">validate</A></B>()</CODE> |
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<BR> |
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Each Task should have the ability to validate its state.</TD> |
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</TR> |
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</TABLE> |
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<P> |
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<!-- ============ FIELD DETAIL =========== --> |
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<A NAME="field_detail"><!-- --></A> |
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<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"> |
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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<TD COLSPAN=1><FONT SIZE="+2"> |
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<B>Field Detail</B></FONT></TD> |
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</TR> |
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</TABLE> |
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<A NAME="EXECUTION_MODE_IMPLICIT"><!-- --></A><H3> |
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EXECUTION_MODE_IMPLICIT</H3> |
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<PRE> |
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public static final int <B>EXECUTION_MODE_IMPLICIT</B></PRE> |
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<DL> |
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</DL> |
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<HR> |
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<A NAME="EXECUTION_MODE_EXPLICIT"><!-- --></A><H3> |
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EXECUTION_MODE_EXPLICIT</H3> |
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<PRE> |
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public static final int <B>EXECUTION_MODE_EXPLICIT</B></PRE> |
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<DL> |
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</DL> |
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<HR> |
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<A NAME="EXECUTION_MODE_PRIORITY"><!-- --></A><H3> |
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EXECUTION_MODE_PRIORITY</H3> |
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<PRE> |
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public static final int <B>EXECUTION_MODE_PRIORITY</B></PRE> |
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<DL> |
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</DL> |
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<HR> |
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<A NAME="NAME_SEPARATOR"><!-- --></A><H3> |
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NAME_SEPARATOR</H3> |
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<PRE> |
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public static final char <B>NAME_SEPARATOR</B></PRE> |
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<DL> |
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</DL> |
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<!-- ========= CONSTRUCTOR DETAIL ======== --> |
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<!-- ============ METHOD DETAIL ========== --> |
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<A NAME="method_detail"><!-- --></A> |
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<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"> |
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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<TD COLSPAN=1><FONT SIZE="+2"> |
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<B>Method Detail</B></FONT></TD> |
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</TR> |
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</TABLE> |
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<A NAME="execute(org.apache.ant.engine.TaskEngine)"><!-- --></A><H3> |
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execute</H3> |
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<PRE> |
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public void <B>execute</B>(org.apache.ant.engine.TaskEngine engine) |
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throws org.apache.ant.AntException</PRE> |
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<DL> |
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<DD>Causes the existing Task implementation to execute.</DL> |
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<HR> |
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<A NAME="init(org.apache.ant.engine.TaskEngine)"><!-- --></A><H3> |
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init</H3> |
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<PRE> |
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public void <B>init</B>(org.apache.ant.engine.TaskEngine engine) |
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throws org.apache.ant.AntException</PRE> |
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<DL> |
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<DD>Called when the Task first gets "noticed" by the TaskEngine.</DL> |
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<HR> |
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<A NAME="validate()"><!-- --></A><H3> |
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validate</H3> |
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<PRE> |
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public void <B>validate</B>() |
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throws org.apache.ant.AntException</PRE> |
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<DL> |
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<DD>Each Task should have the ability to validate its state. This would be |
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invoked by the TaskEngine prior to commencing an execution cycle.</DL> |
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<HR> |
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<A NAME="getTaskName()"><!-- --></A><H3> |
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getTaskName</H3> |
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<PRE> |
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public java.lang.String <B>getTaskName</B>()</PRE> |
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<DL> |
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<DD>Just a simple name used to identify a Task. This name is only sufficient |
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for simple debugging and GUI output. It does not uniquely identify a |
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Task.<DD><DL> |
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<DT><B>See Also: </B><DD><A HREF="../../../../org/apache/ant/tasks/Task.html#getFullyQualifiedName()"><CODE>getFullyQualifiedName()</CODE></A></DL> |
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</DD> |
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</DL> |
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<HR> |
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<A NAME="getTask(java.lang.String)"><!-- --></A><H3> |
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getTask</H3> |
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<PRE> |
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public <A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A> <B>getTask</B>(java.lang.String taskPath)</PRE> |
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<DL> |
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<DD>A mechanism for locating a task relative to the current task. This |
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navigation sceme will mimic a typical OS system. '..' will move back |
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a level in the Task tree. If taskPath begins with '/' then the root node |
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will be used as a starting point. |
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<p></p> |
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Returns null of no task is found at this location.</DL> |
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<HR> |
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<A NAME="getRootTask()"><!-- --></A><H3> |
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getRootTask</H3> |
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<PRE> |
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public <A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A> <B>getRootTask</B>()</PRE> |
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<DL> |
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<DD>Proceed backwards through the nodes until we come across the first Task |
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in the tree. This is the root Task.</DL> |
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<HR> |
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<A NAME="getFullyQualifiedName()"><!-- --></A><H3> |
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getFullyQualifiedName</H3> |
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<PRE> |
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public java.lang.String <B>getFullyQualifiedName</B>()</PRE> |
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<DL> |
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<DD>The "fully-qualified" name of a Task is the Task's name, prepended by its |
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parent's name, prepended by its parent's name, etc. This method may be |
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used by the Task's hashCode() method to calculate a hash that will |
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uniquely identify a Task.</DL> |
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<HR> |
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<A NAME="getExecutionMode()"><!-- --></A><H3> |
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getExecutionMode</H3> |
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<PRE> |
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public int <B>getExecutionMode</B>()</PRE> |
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<DL> |
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<DD>Determines whether this Task is executed whenever its parent is executed, |
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or if its execution must be specifically requested. |
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<p></p> |
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<dl><dt>EXECUTION_MODE_EXPLICIT</dt> |
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<dd>Requires interaction by the TaskEngine in order to execute.</dd> |
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<dt>EXECUTION_MODE_IMPLICIT</dt> |
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<dd>This Task is automatically executed when its parent is |
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executed.</dd> |
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<dt>EXECUTION_MODE_PRIORITY</dt> |
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<dd>These Tasks are executed prior to its parent's execution</dd></dl> |
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<p></p> |
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The default mode should probably be EXECUTION_MODE_IMPLICIT. In the |
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build domain of Ant, every Task below a Task will normally be executed. |
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The major exception to this is the Target. When a Project Task is |
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executed, all Target Tasks do <i>not</i> automatically fire, however all |
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Property Tasks <i>do</i> execute.</DL> |
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<HR> |
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<A NAME="isPropertyContainer()"><!-- --></A><H3> |
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isPropertyContainer</H3> |
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<PRE> |
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public boolean <B>isPropertyContainer</B>()</PRE> |
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<DL> |
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<DD>Determines whether a Task is suitable for holding property values.</DL> |
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<HR> |
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<A NAME="getAttributeValue(java.lang.String)"><!-- --></A><H3> |
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getAttributeValue</H3> |
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<PRE> |
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public java.lang.String <B>getAttributeValue</B>(java.lang.String name)</PRE> |
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<DL> |
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<DD>Each Task will hold its attributes in some manner. This method will allow |
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the Task implementation to return the value of its attribute.</DL> |
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<HR> |
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<A NAME="getParent()"><!-- --></A><H3> |
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getParent</H3> |
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<PRE> |
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public <A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A> <B>getParent</B>()</PRE> |
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<DL> |
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<DD>Returns this Task's parent Task. If this Task is the root Task, then this |
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method will return null.</DL> |
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<HR> |
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<A NAME="setParent(org.apache.ant.tasks.Task)"><!-- --></A><H3> |
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setParent</H3> |
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<PRE> |
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public void <B>setParent</B>(<A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A> parent)</PRE> |
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<DL> |
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<DD>Sets the Task's parent.</DL> |
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<HR> |
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<A NAME="getChildren()"><!-- --></A><H3> |
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getChildren</H3> |
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<PRE> |
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public <A HREF="../../../../org/apache/ant/tasks/Task.html">Task</A>[] <B>getChildren</B>()</PRE> |
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<DL> |
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<DD>Returns the an array of Task objects that are subordinate to this Task.</DL> |
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<!-- ========= END OF CLASS DATA ========= --> |
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Peter Donald
