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Rule
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SUMMARY: <A HREF="#nested_class_summary">NESTED</A> | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
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org.semanticweb.kaon2.api.logic</FONT>
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Interface Rule</H2>
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<DT><B>All Superinterfaces:</B> <DD><A HREF="../../../../../org/semanticweb/kaon2/api/Axiom.html" title="interface in org.semanticweb.kaon2.api">Axiom</A>, <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Formula.html" title="interface in org.semanticweb.kaon2.api.logic">Formula</A></DD>
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<DT><PRE>public interface <B>Rule</B><DT>extends <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Formula.html" title="interface in org.semanticweb.kaon2.api.logic">Formula</A></DL>
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<P>
Represents a rule in the program. A rule contains an array of head formuale and an array of body formulae. The body formulae are always interpreted conjunctively; however, the head formulae can be interpreted as conjunctively or disjunctively, according to the state of the isHeadConjunctive() flag. For SWRL rules, this flag should be always set to <code>true</code>.
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<CODE>static class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.SubsumptionResult.html" title="class in org.semanticweb.kaon2.api.logic">Rule.SubsumptionResult</A></B></CODE>
<BR>
Returns the result of a subsumption check.</TD>
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<CODE>static class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.SubsumptionType.html" title="enum in org.semanticweb.kaon2.api.logic">Rule.SubsumptionType</A></B></CODE>
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The enumeration of the types of subsumption relationships.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Formula.html" title="interface in org.semanticweb.kaon2.api.logic">Formula</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getBodyFormula(int)">getBodyFormula</A></B>(int bodyFormulaIndex)</CODE>
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Returns the body formula with given index.</TD>
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<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Formula.html" title="interface in org.semanticweb.kaon2.api.logic">Formula</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getBodyFormulae()">getBodyFormulae</A></B>()</CODE>
<BR>
Returns the array of body formula.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getBodyLength()">getBodyLength</A></B>()</CODE>
<BR>
Returns the number of body literals.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Literal.html" title="interface in org.semanticweb.kaon2.api.logic">Literal</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getBodyLiteral(int)">getBodyLiteral</A></B>(int bodyLiteralIndex)</CODE>
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Returns the body formula with given index casted to a Literal.</TD>
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<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Literal.html" title="interface in org.semanticweb.kaon2.api.logic">Literal</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getBodyLiterals()">getBodyLiterals</A></B>()</CODE>
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Returns the array of body literals.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Set<<A HREF="../../../../../org/semanticweb/kaon2/api/logic/Variable.html" title="interface in org.semanticweb.kaon2.api.logic">Variable</A>></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getBoundVariables()">getBoundVariables</A></B>()</CODE>
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Returns the set of variables bound by the implicit universal qnaitifier in front of the implication.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html" title="interface in org.semanticweb.kaon2.api.logic">Rule</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getDLSafeVersion()">getDLSafeVersion</A></B>()</CODE>
<BR>
Returns the DL-safe version of this rule.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Formula.html" title="interface in org.semanticweb.kaon2.api.logic">Formula</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getHeadFormula(int)">getHeadFormula</A></B>(int headFormulaIndex)</CODE>
<BR>
Returns the head formula with given index.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Formula.html" title="interface in org.semanticweb.kaon2.api.logic">Formula</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getHeadFormulae()">getHeadFormulae</A></B>()</CODE>
<BR>
Returns the array of head formulae.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getHeadLength()">getHeadLength</A></B>()</CODE>
<BR>
Returns the number of head literals.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Literal.html" title="interface in org.semanticweb.kaon2.api.logic">Literal</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getHeadLiteral(int)">getHeadLiteral</A></B>(int headLiteralIndex)</CODE>
<BR>
Returns the head formula with given index casted to a Literal.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/semanticweb/kaon2/api/logic/Literal.html" title="interface in org.semanticweb.kaon2.api.logic">Literal</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#getHeadLiterals()">getHeadLiterals</A></B>()</CODE>
<BR>
Returns the array of head literals.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#isDLSafe()">isDLSafe</A></B>()</CODE>
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Returns <code>true</code> if the rule is DL-safe.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#isHeadConjunctive()">isHeadConjunctive</A></B>()</CODE>
<BR>
If this method returns <code>true</code>, then the head literals of this rule should be interpreted conjunctively; otherwise, they are interpreted disjunctively.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#isRangeRestricted()">isRangeRestricted</A></B>()</CODE>
<BR>
Checks if the rule is range-restricted.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/semanticweb/kaon2/api/logic/Rule.html#isTautology()">isTautology</A></B>()</CODE>
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