operator.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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<A NAME="add"><!-- --></A><H3>
add</H3>
<PRE>
private <A HREF="../JSHOP2/DelAddElement.html" title="class in JSHOP2">DelAddElement</A>[] <B>add</B></PRE>
<DL>
<DD>Represents the add list in case it is a real list and not a variable.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="addVarIdx"><!-- --></A><H3>
addVarIdx</H3>
<PRE>
private int <B>addVarIdx</B></PRE>
<DL>
<DD>Represents the add list in case it is a variable (The integer value
  represents variable's index), otherwise it is -1.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="cost"><!-- --></A><H3>
cost</H3>
<PRE>
private <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A> <B>cost</B></PRE>
<DL>
<DD>Cost of this operator.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="del"><!-- --></A><H3>
del</H3>
<PRE>
private <A HREF="../JSHOP2/DelAddElement.html" title="class in JSHOP2">DelAddElement</A>[] <B>del</B></PRE>
<DL>
<DD>Represents the delete list in case it is a real list and not a variable.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="delVarIdx"><!-- --></A><H3>
delVarIdx</H3>
<PRE>
private int <B>delVarIdx</B></PRE>
<DL>
<DD>Represents the delete list in case it is a variable (The integer value
  represents variable's index), otherwise it is -1.
<P>
<DL>
</DL>
</DL>

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<A NAME="Operator(JSHOP2.Predicate, int, int, JSHOP2.Term)"><!-- --></A><H3>
Operator</H3>
<PRE>
public <B>Operator</B>(<A HREF="../JSHOP2/Predicate.html" title="class in JSHOP2">Predicate</A>&nbsp;head,
                int&nbsp;delVarIdxIn,
                int&nbsp;addVarIdxIn,
                <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>&nbsp;costIn)</PRE>
<DL>
<DD>To initialize the operator.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>head</CODE> - head of the operator.<DD><CODE>delVarIdxIn</CODE> - the index of the delete list as a variable, -1 if the delete list
          is not a variable.<DD><CODE>addVarIdxIn</CODE> - the index of the add list as a variable, -1 if the add list is
          not a variable.<DD><CODE>costIn</CODE> - the cost of the operator.</DL>
</DL>

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<A NAME="apply(JSHOP2.Term[], JSHOP2.State, java.util.Vector[])"><!-- --></A><H3>
apply</H3>
<PRE>
public boolean <B>apply</B>(<A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>[]&nbsp;binding,
                     <A HREF="../JSHOP2/State.html" title="class in JSHOP2">State</A>&nbsp;s,
                     java.util.Vector[]&nbsp;delAdd)</PRE>
<DL>
<DD>This function is used to apply this operator to a given state.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>binding</CODE> - the current binding.<DD><CODE>s</CODE> - current state of the world.<DD><CODE>delAdd</CODE> - a 4-member array of type <code>Vector</code> used to keep track
          of the atoms and protections deleted from and added to the
          current state of the world as the result of applying this
          operator. This data can be used later in case of a backtrack to
          undo these changes.
<DT><B>Returns:</B><DD><code>true</code> if the operator was applicable,
          <code>false</code> otherwise. An operator is not applicable when
          at least one of the atoms it tries to delete is protected.</DL>
</DD>
</DL>
<HR>

<A NAME="getCost(JSHOP2.Term[])"><!-- --></A><H3>
getCost</H3>
<PRE>
public double <B>getCost</B>(<A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>[]&nbsp;binding)</PRE>
<DL>
<DD>To get the cost of this operator.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>binding</CODE> - the binding to be applied to the cost term.
<DT><B>Returns:</B><DD>the cost of applying this operator.</DL>
</DD>
</DL>
<HR>

<A NAME="setAdd(JSHOP2.DelAddElement[])"><!-- --></A><H3>
setAdd</H3>
<PRE>
public void <B>setAdd</B>(<A HREF="../JSHOP2/DelAddElement.html" title="class in JSHOP2">DelAddElement</A>[]&nbsp;addIn)</PRE>
<DL>
<DD>To set the add list.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>addIn</CODE> - the add list.</DL>
</DD>
</DL>
<HR>

<A NAME="setDel(JSHOP2.DelAddElement[])"><!-- --></A><H3>
setDel</H3>
<PRE>
public void <B>setDel</B>(<A HREF="../JSHOP2/DelAddElement.html" title="class in JSHOP2">DelAddElement</A>[]&nbsp;delIn)</PRE>
<DL>
<DD>To set the delete list.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>delIn</CODE> - the delete list.</DL>
</DD>
</DL>
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