databaseloader.html

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<A NAME="getUrl()"><!-- --></A><H3>
getUrl</H3>
<PRE>
public java.lang.String <B>getUrl</B>()</PRE>
<DL>
<DD>Gets the URL
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/DatabaseConverter.html#getUrl()">getUrl</A></CODE> in interface <CODE><A HREF="../../../weka/core/converters/DatabaseConverter.html" title="interface in weka.core.converters">DatabaseConverter</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the URL</DL>
</DD>
</DL>
<HR>

<A NAME="urlTipText()"><!-- --></A><H3>
urlTipText</H3>
<PRE>
public java.lang.String <B>urlTipText</B>()</PRE>
<DL>
<DD>the tip text for this property
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the tip text</DL>
</DD>
</DL>
<HR>

<A NAME="setUser(java.lang.String)"><!-- --></A><H3>
setUser</H3>
<PRE>
public void <B>setUser</B>(java.lang.String&nbsp;user)</PRE>
<DL>
<DD>Sets the database user
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/DatabaseConverter.html#setUser(java.lang.String)">setUser</A></CODE> in interface <CODE><A HREF="../../../weka/core/converters/DatabaseConverter.html" title="interface in weka.core.converters">DatabaseConverter</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getUser()"><!-- --></A><H3>
getUser</H3>
<PRE>
public java.lang.String <B>getUser</B>()</PRE>
<DL>
<DD>Gets the user name
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/DatabaseConverter.html#getUser()">getUser</A></CODE> in interface <CODE><A HREF="../../../weka/core/converters/DatabaseConverter.html" title="interface in weka.core.converters">DatabaseConverter</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>name of database user</DL>
</DD>
</DL>
<HR>

<A NAME="userTipText()"><!-- --></A><H3>
userTipText</H3>
<PRE>
public java.lang.String <B>userTipText</B>()</PRE>
<DL>
<DD>the tip text for this property
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the tip text</DL>
</DD>
</DL>
<HR>

<A NAME="setPassword(java.lang.String)"><!-- --></A><H3>
setPassword</H3>
<PRE>
public void <B>setPassword</B>(java.lang.String&nbsp;password)</PRE>
<DL>
<DD>Sets user password for the database
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/DatabaseConverter.html#setPassword(java.lang.String)">setPassword</A></CODE> in interface <CODE><A HREF="../../../weka/core/converters/DatabaseConverter.html" title="interface in weka.core.converters">DatabaseConverter</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="passwordTipText()"><!-- --></A><H3>
passwordTipText</H3>
<PRE>
public java.lang.String <B>passwordTipText</B>()</PRE>
<DL>
<DD>the tip text for this property
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the tip text</DL>
</DD>
</DL>
<HR>

<A NAME="setSource(java.lang.String, java.lang.String, java.lang.String)"><!-- --></A><H3>
setSource</H3>
<PRE>
public void <B>setSource</B>(java.lang.String&nbsp;url,
                      java.lang.String&nbsp;userName,
                      java.lang.String&nbsp;password)</PRE>
<DL>
<DD>Sets the database url
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>url</CODE> - the database url<DD><CODE>userName</CODE> - the user name<DD><CODE>password</CODE> - the password</DL>
</DD>
</DL>
<HR>

<A NAME="setSource(java.lang.String)"><!-- --></A><H3>
setSource</H3>
<PRE>
public void <B>setSource</B>(java.lang.String&nbsp;url)</PRE>
<DL>
<DD>Sets the database url
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>url</CODE> - the database url</DL>
</DD>
</DL>
<HR>

<A NAME="setSource()"><!-- --></A><H3>
setSource</H3>
<PRE>
public void <B>setSource</B>()
               throws java.lang.Exception</PRE>
<DL>
<DD>Sets the database url using the DatabaseUtils file
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="connectToDatabase()"><!-- --></A><H3>
connectToDatabase</H3>
<PRE>
public void <B>connectToDatabase</B>()</PRE>
<DL>
<DD>Opens a connection to the database
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getStructure()"><!-- --></A><H3>
getStructure</H3>
<PRE>
public <A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getStructure</B>()
                       throws java.io.IOException</PRE>
<DL>
<DD>Determines and returns (if possible) the structure (internally the 
 header) of the data set as an empty set of instances.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/Loader.html#getStructure()">getStructure</A></CODE> in interface <CODE><A HREF="../../../weka/core/converters/Loader.html" title="interface in weka.core.converters">Loader</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/AbstractLoader.html#getStructure()">getStructure</A></CODE> in class <CODE><A HREF="../../../weka/core/converters/AbstractLoader.html" title="class in weka.core.converters">AbstractLoader</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the structure of the data set as an empty set of Instances
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if an error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="getDataSet()"><!-- --></A><H3>
getDataSet</H3>
<PRE>
public <A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getDataSet</B>()
                     throws java.io.IOException</PRE>
<DL>
<DD>Return the full data set in batch mode (header and all intances at once).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/Loader.html#getDataSet()">getDataSet</A></CODE> in interface <CODE><A HREF="../../../weka/core/converters/Loader.html" title="interface in weka.core.converters">Loader</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/AbstractLoader.html#getDataSet()">getDataSet</A></CODE> in class <CODE><A HREF="../../../weka/core/converters/AbstractLoader.html" title="class in weka.core.converters">AbstractLoader</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the structure of the data set as an empty set of Instances
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there is no source or parsing fails</DL>
</DD>
</DL>
<HR>

<A NAME="getNextInstance()"><!-- --></A><H3>
getNextInstance</H3>
<PRE>
public <A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A> <B>getNextInstance</B>()
                         throws java.io.IOException</PRE>
<DL>
<DD>Read the data set incrementally---get the next instance in the data 
 set or returns null if there are no
 more instances to get. If the structure hasn't yet been 
 determined by a call to getStructure then method does so before
 returning the next instance in the data set.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/Loader.html#getNextInstance()">getNextInstance</A></CODE> in interface <CODE><A HREF="../../../weka/core/converters/Loader.html" title="interface in weka.core.converters">Loader</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/converters/AbstractLoader.html#getNextInstance()">getNextInstance</A></CODE> in class <CODE><A HREF="../../../weka/core/converters/AbstractLoader.html" title="class in weka.core.converters">AbstractLoader</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the next instance in the data set as an Instance object or null
 if there are no more instances to be read
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there is an error during parsing</DL>
</DD>
</DL>
<HR>

<A NAME="getOptions()"><!-- --></A><H3>
getOptions</H3>
<PRE>
public java.lang.String[] <B>getOptions</B>()</PRE>
<DL>
<DD>Gets the setting
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/OptionHandler.html#getOptions()">getOptions</A></CODE> in interface <CODE><A HREF="../../../weka/core/OptionHandler.html" title="interface in weka.core">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the current setting</DL>
</DD>
</DL>
<HR>

<A NAME="listOptions()"><!-- --></A><H3>
listOptions</H3>
<PRE>
public java.util.Enumeration <B>listOptions</B>()</PRE>
<DL>
<DD>Lists the available options
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/OptionHandler.html#listOptions()">listOptions</A></CODE> in interface <CODE><A HREF="../../../weka/core/OptionHandler.html" title="interface in weka.core">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an enumeration of the available options</DL>
</DD>
</DL>
<HR>

<A NAME="setOptions(java.lang.String[])"><!-- --></A><H3>
setOptions</H3>
<PRE>
public void <B>setOptions</B>(java.lang.String[]&nbsp;options)
                throws java.lang.Exception</PRE>
<DL>
<DD>Sets the options.

 Available options are:
 -Q the query to specify which tuples to load<br>
 The query must have the form:
 SELECT *|<column-list> FROM <table> [WHERE}
 (default: SELECT * FROM Results0).<p>

 -P comma separted list of columns that are a unqiue key <br>
 Only needed for incremental loading, if it cannot be detected automatically<p>

 -I <br>
 Sets incremental loading
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../weka/core/OptionHandler.html#setOptions(java.lang.String[])">setOptions</A></CODE> in interface <CODE><A HREF="../../../weka/core/OptionHandler.html" title="interface in weka.core">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>options</CODE> - the options
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if options cannot be set</DL>
</DD>
</DL>
<HR>

<A NAME="main(java.lang.String[])"><!-- --></A><H3>
main</H3>
<PRE>
public static void <B>main</B>(java.lang.String[]&nbsp;options)</PRE>
<DL>
<DD>Main method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>options</CODE> - the options</DL>
</DD>
</DL>
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