deladdelement.html

SHOP2 一个人工智能里面关于任务分解和任务规划的系统。JSHOP2是其java版本。

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<CODE>abstract &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../JSHOP2/DelAddElement.html#setVarCount(int)">setVarCount</A></B>(int&nbsp;varCount)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To set the number of variables in this delete/add element.</TD>
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<TH ALIGN="left"><B>Methods inherited from class JSHOP2.<A HREF="../JSHOP2/CompileTimeObject.html" title="class in JSHOP2">CompileTimeObject</A></B></TH>
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<TD><CODE><A HREF="../JSHOP2/CompileTimeObject.html#toCode()">toCode</A></CODE></TD>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<A NAME="DelAddElement()"><!-- --></A><H3>
DelAddElement</H3>
<PRE>
public <B>DelAddElement</B>()</PRE>
<DL>
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<A NAME="add(JSHOP2.State, JSHOP2.Term[], java.util.Vector[])"><!-- --></A><H3>
add</H3>
<PRE>
public abstract void <B>add</B>(<A HREF="../JSHOP2/State.html" title="class in JSHOP2">State</A>&nbsp;s,
                         <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>[]&nbsp;binding,
                         java.util.Vector[]&nbsp;delAddList)</PRE>
<DL>
<DD>What to do when an operator has this element in its add list and it is
  being applied.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - the current state of the world.<DD><CODE>binding</CODE> - the binding to be applied before adding the element.<DD><CODE>delAddList</CODE> - an array of size 4 of atoms and protections deleted and added.
          This is useful when a backtrack happens: Added atoms and
          protections are retracted, and deleted atoms and protections are
          added back to change the state of the world to what it was before
          backtracked decision was made. The 4 elements of the array are
          the deleted atoms, the added atoms, the deleted protections, and
          the added protections repectively.</DL>
</DD>
</DL>
<HR>

<A NAME="del(JSHOP2.State, JSHOP2.Term[], java.util.Vector[])"><!-- --></A><H3>
del</H3>
<PRE>
public abstract boolean <B>del</B>(<A HREF="../JSHOP2/State.html" title="class in JSHOP2">State</A>&nbsp;s,
                            <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>[]&nbsp;binding,
                            java.util.Vector[]&nbsp;delAddList)</PRE>
<DL>
<DD>What to do when an operator has this element in its delete list and it is
  being applied.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - the current state of the world.<DD><CODE>binding</CODE> - the binding to be applied before deleting the element.<DD><CODE>delAddList</CODE> - an array of size 4 of atoms and protections deleted and added.
          This is useful when a backtrack happens: Added atoms and
          protections are retracted, and deleted atoms and protections are
          added back to change the state of the world to what it was before
          backtracked decision was made. The 4 elements of array are the
          the deleted atoms, added atoms, deleted protections and added
          protections in that order.
<DT><B>Returns:</B><DD><code>true</code> if the atom(s) associated with this
          delete/add element were deleted, <code>false</code> otherwise,
          i.e., when at least one of the atoms to be deleted was protected.
          If this function returns <code>false</code>, it means the
          operator has failed and should be backtracked.</DL>
</DD>
</DL>
<HR>

<A NAME="setVarCount(int)"><!-- --></A><H3>
setVarCount</H3>
<PRE>
public abstract void <B>setVarCount</B>(int&nbsp;varCount)</PRE>
<DL>
<DD>To set the number of variables in this delete/add element. It is used
  when returning a binding since a binding is assumed to be an array of
  this size. This function must be called at compile time, since at run
  time the code to calculate the bindings has already been produced.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>varCount</CODE> - the number of variables.</DL>
</DD>
</DL>
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