saver.html

由java开发的软件包

 the supplied File object.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>file</CODE> - the File
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if an error occurs
 support loading from a File.

 <pre><jml>
    public_normal_behavior
      requires: file != null
                && (* file exists *);
      modifiable: model_sourceSupplied, model_structureDetermined;
      ensures: model_sourceSupplied == true 
               && model_structureDetermined == false;
  also
    public_exceptional_behavior
      requires: file == null
                || (* file does not exist *);
    signals: (IOException);
 </jml></pre></DL>
</DD>
</DL>
<HR>

<A NAME="setDestination(java.io.OutputStream)"><!-- --></A><H3>
setDestination</H3>
<PRE>
public void <B>setDestination</B>(java.io.OutputStream&nbsp;output)
                    throws java.io.IOException</PRE>
<DL>
<DD>Resets the Saver object and sets the destination to be
 the supplied InputStream.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>output</CODE> - the output stream
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if this Loader doesn't
 support loading from a File.</DL>
</DD>
</DL>
<HR>

<A NAME="setRetrieval(int)"><!-- --></A><H3>
setRetrieval</H3>
<PRE>
public void <B>setRetrieval</B>(int&nbsp;mode)</PRE>
<DL>
<DD>Sets the retrieval mode
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mode</CODE> - an integer representing a retrieval mode</DL>
</DD>
</DL>
<HR>

<A NAME="getFileExtension()"><!-- --></A><H3>
getFileExtension</H3>
<PRE>
public java.lang.String <B>getFileExtension</B>()
                                  throws java.lang.Exception</PRE>
<DL>
<DD>Gets the file extension
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a string conatining the file extension (including the '.')
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - exception if a Saver not implementing FileSourcedConverter is used.</DL>
</DD>
</DL>
<HR>

<A NAME="setFile(java.io.File)"><!-- --></A><H3>
setFile</H3>
<PRE>
public void <B>setFile</B>(java.io.File&nbsp;file)
             throws java.io.IOException</PRE>
<DL>
<DD>Sets the output file
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>file</CODE> - the output file
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - exception if new output file cannot be set</DL>
</DD>
</DL>
<HR>

<A NAME="setFilePrefix(java.lang.String)"><!-- --></A><H3>
setFilePrefix</H3>
<PRE>
public void <B>setFilePrefix</B>(java.lang.String&nbsp;prefix)
                   throws java.lang.Exception</PRE>
<DL>
<DD>Sets the file prefix.
 This method is used in the KnowledgeFlow GUI.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>prefix</CODE> - the prefix of the file name
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - exception if a Saver not implementing FileSourcedConverter is used.</DL>
</DD>
</DL>
<HR>

<A NAME="filePrefix()"><!-- --></A><H3>
filePrefix</H3>
<PRE>
public java.lang.String <B>filePrefix</B>()
                            throws java.lang.Exception</PRE>
<DL>
<DD>Gets the file prefix
 This method is used in the KnowledgeFlow GUI.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the prefix of the file name
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - exception if a Saver not implementing FileSourcedConverter is used.</DL>
</DD>
</DL>
<HR>

<A NAME="setDir(java.lang.String)"><!-- --></A><H3>
setDir</H3>
<PRE>
public void <B>setDir</B>(java.lang.String&nbsp;dir)
            throws java.io.IOException</PRE>
<DL>
<DD>Sets the directory of the output file.
 This method is used in the KnowledgeFlow GUI.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dir</CODE> - a string containing the path and name of the directory
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - exception if a Saver not implementing FileSourcedConverter is used.</DL>
</DD>
</DL>
<HR>

<A NAME="setDirAndPrefix(java.lang.String, java.lang.String)"><!-- --></A><H3>
setDirAndPrefix</H3>
<PRE>
public void <B>setDirAndPrefix</B>(java.lang.String&nbsp;relationName,
                            java.lang.String&nbsp;add)
                     throws java.io.IOException</PRE>
<DL>
<DD>Sets the file prefix and the directory.
 This method is used in the KnowledgeFlow GUI.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>relationName</CODE> - the name of the realtion to be saved<DD><CODE>add</CODE> - additional String for the file name
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - exception if a Saver not implementing FileSourcedConverter is used.</DL>
</DD>
</DL>
<HR>

<A NAME="retrieveDir()"><!-- --></A><H3>
retrieveDir</H3>
<PRE>
public java.lang.String <B>retrieveDir</B>()
                             throws java.io.IOException</PRE>
<DL>
<DD>Gets the driectory of the output file
 This method is used in the KnowledgeFlow GUI.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the directory as a string
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - exception if a Saver not implementing FileSourcedConverter is used.</DL>
</DD>
</DL>
<HR>

<A NAME="setInstances(weka.core.Instances)"><!-- --></A><H3>
setInstances</H3>
<PRE>
public void <B>setInstances</B>(<A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;instances)</PRE>
<DL>
<DD>Sets the instances to be saved
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instances</CODE> - the instances</DL>
</DD>
</DL>
<HR>

<A NAME="writeBatch()"><!-- --></A><H3>
writeBatch</H3>
<PRE>
public void <B>writeBatch</B>()
                throws java.io.IOException</PRE>
<DL>
<DD>Writes to a destination in batch mode
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - throws exection if writting in batch mode is not possible</DL>
</DD>
</DL>
<HR>

<A NAME="writeIncremental(weka.core.Instance)"><!-- --></A><H3>
writeIncremental</H3>
<PRE>
public void <B>writeIncremental</B>(<A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;inst)
                      throws java.io.IOException</PRE>
<DL>
<DD>Writes to a destination in incremental mode.
 If the instance is null, the outputfile will be closed.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>inst</CODE> - the instance to write, if null the output file is closed
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - throws exception if incremental writting is not possible</DL>
</DD>
</DL>
<HR>

<A NAME="getWriteMode()"><!-- --></A><H3>
getWriteMode</H3>
<PRE>
public int <B>getWriteMode</B>()</PRE>
<DL>
<DD>Gets the write mode
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an integer representing the write mode</DL>
</DD>
</DL>
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