query.html

本体推理工具 共八个例子:从如何建立本体到做一些简单的的本体推理

<DL>
<DD>Cancels any sorting of the result.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error in evaluation</DL>
</DD>
</DL>
<HR>

<A NAME="setLimit(int)"><!-- --></A><H3>
setLimit</H3>
<PRE>
void <B>setLimit</B>(int&nbsp;limit)
              throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></PRE>
<DL>
<DD>Sets the limit on the number of results returned.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>limit</CODE> - the limit on the number of results returned (-1 cancels any limit)
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error in evaluation</DL>
</DD>
</DL>
<HR>

<A NAME="setOffset(int)"><!-- --></A><H3>
setOffset</H3>
<PRE>
void <B>setOffset</B>(int&nbsp;offset)
               throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></PRE>
<DL>
<DD>Sets the number of tuples that are skipped after the query is executed.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>offset</CODE> - the offset (0 cancels any offset)
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error in evaluation</DL>
</DD>
</DL>
<HR>

<A NAME="executeStoreResults(org.semanticweb.kaon2.api.Ontology)"><!-- --></A><H3>
executeStoreResults</H3>
<PRE>
void <B>executeStoreResults</B>(<A HREF="../../../../../org/semanticweb/kaon2/api/Ontology.html" title="interface in org.semanticweb.kaon2.api">Ontology</A>&nbsp;resultOntology)
                         throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A>,
                                java.lang.InterruptedException</PRE>
<DL>
<DD>Executes the query by evaluating the construct pattern and by storing the result into supplied ontology.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>resultOntology</CODE> - the ontology receiving results
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error in evaluation
<DD><CODE>java.lang.InterruptedException</CODE> - thrown if query evaluation is interrupted</DL>
</DD>
</DL>
<HR>

<A NAME="open()"><!-- --></A><H3>
open</H3>
<PRE>
void <B>open</B>()
          throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A>,
                 java.lang.InterruptedException</PRE>
<DL>
<DD>Starts the evaluation of the query. Each successful call to this method should
 be paired with a call to close(); otherwise, one runs a risk of a resource leak.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error in evaluation
<DD><CODE>java.lang.InterruptedException</CODE> - thrown if query evaluation is interrupted</DL>
</DD>
</DL>
<HR>

<A NAME="getNumberOfTuples()"><!-- --></A><H3>
getNumberOfTuples</H3>
<PRE>
int <B>getNumberOfTuples</B>()
                      throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></PRE>
<DL>
<DD>Returns the number of tuples in the result. If the query has not been opened, the result is undefined.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the number of tuples in the result
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error</DL>
</DD>
</DL>
<HR>

<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
void <B>close</B>()
           throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></PRE>
<DL>
<DD>Closes the evaluation of the query.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error in evaluation</DL>
</DD>
</DL>
<HR>

<A NAME="tupleBuffer()"><!-- --></A><H3>
tupleBuffer</H3>
<PRE>
<A HREF="../../../../../org/semanticweb/kaon2/api/logic/Term.html" title="interface in org.semanticweb.kaon2.api.logic">Term</A>[] <B>tupleBuffer</B>()
                   throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></PRE>
<DL>
<DD>Returns the buffer containing the current tuple of the operator. This buffer is owned by the tuple
 stream, and shouldn't be used otherwise.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the tuple buffer
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error</DL>
</DD>
</DL>
<HR>

<A NAME="afterLast()"><!-- --></A><H3>
afterLast</H3>
<PRE>
boolean <B>afterLast</B>()
                  throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></PRE>
<DL>
<DD>Returns <code>true</code> if the current stream is after the last tuple.
<P>
<DD><DL>

<DT><B>Returns:</B><DD><code>true</code> if the stream is after the last tuple
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error</DL>
</DD>
</DL>
<HR>

<A NAME="next()"><!-- --></A><H3>
next</H3>
<PRE>
void <B>next</B>()
          throws <A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A>,
                 java.lang.InterruptedException</PRE>
<DL>
<DD>Moves the cursor of the stream to the next position. If the tuple stream is at the end this method call has no effect.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/semanticweb/kaon2/api/KAON2Exception.html" title="class in org.semanticweb.kaon2.api">KAON2Exception</A></CODE> - thrown if there is an error
<DD><CODE>java.lang.InterruptedException</CODE> - thrown if query evaluation is interrupted</DL>
</DD>
</DL>
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