datarow.html

这是一个Java工具类库

</DL>
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<A NAME="getDouble(int, java.text.DecimalFormat, double)"><!-- --></A><H3>
getDouble</H3>
<PRE>
public double <B>getDouble</B>(int&nbsp;location,
                        java.text.DecimalFormat&nbsp;format,
                        double&nbsp;defaultVal)</PRE>
<DL>
<DD>Retrieves the <code>double</code> value at specified
 <code>location</code> parsed using <code>format</code>.
 If the value does not exist or fails to parse into
 <code>double</code>, <code>defaultVal</code> is returned.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>location</CODE> - location of <code>double</code> value<DD><CODE>format</CODE> - double value parser to be used in extracting
 item.<DD><CODE>defaultVal</CODE> - default value to use in case of missing data or
 parse error.
<DT><B>Returns:</B><DD>a double value at specified <code>location</code>
 or <code>defaultVal</code></DL>
</DD>
</DL>
<HR>

<A NAME="getDouble(java.lang.String, double)"><!-- --></A><H3>
getDouble</H3>
<PRE>
public double <B>getDouble</B>(java.lang.String&nbsp;label,
                        double&nbsp;defaultVal)</PRE>
<DL>
<DD>Retrieve the <code>double</code> value contained
 in data cell corresponding to the specified column
 <code>label</code>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>label</CODE> - column label<DD><CODE>defaultVal</CODE> - default value to use when value does not
                   exist or does not parse correctly.
<DT><B>Returns:</B><DD><code>double</code> value corresponding to the
         specified column <code>label</code>. If the 
         specified column <code>label</code> does not 
         exist or the value cannot parsed into a
         <code>double</code>, <code>defaultValu</code>.</DL>
</DD>
</DL>
<HR>

<A NAME="getInt(int)"><!-- --></A><H3>
getInt</H3>
<PRE>
public int <B>getInt</B>(int&nbsp;location)
           throws java.lang.NumberFormatException</PRE>
<DL>
<DD>Retrieves the int value of the datum contained
 in the specified location.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>location</CODE> - location of the item.
<DT><B>Returns:</B><DD>an <code>int</code> at the specified <code>location</code>.
<DT><B>Throws:</B>
<DD><CODE>java.lang.NumberFormatException</CODE> - if the value at specified location
         cannot parsed into an <code>int</code></DL>
</DD>
</DL>
<HR>

<A NAME="getInt(java.lang.String)"><!-- --></A><H3>
getInt</H3>
<PRE>
public int <B>getInt</B>(java.lang.String&nbsp;label)
           throws java.lang.NumberFormatException</PRE>
<DL>
<DD>Retrieves the int value of the datum contained
 under specified column <code>label</code>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>label</CODE> - column label
<DT><B>Returns:</B><DD>a <code>int</code> value
<DT><B>Throws:</B>
<DD><CODE>java.lang.NumberFormatException</CODE> - if specified column <code>label</code>
         does not exist or the value cannot parsed into an 
         <code>int</code></DL>
</DD>
</DL>
<HR>

<A NAME="getInt(int, int)"><!-- --></A><H3>
getInt</H3>
<PRE>
public int <B>getInt</B>(int&nbsp;location,
                  int&nbsp;defaultVal)</PRE>
<DL>
<DD>Retrieves the int value of the datum contained
 in the specified location.  If the specified location does not
 contain a int value or empty, default value is returned.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>location</CODE> - location of the item.<DD><CODE>defaultVal</CODE> - default value to use when value does not exist.
<DT><B>Returns:</B><DD>a <code>int</code> value</DL>
</DD>
</DL>
<HR>

<A NAME="getInt(int, java.text.DecimalFormat, int)"><!-- --></A><H3>
getInt</H3>
<PRE>
public int <B>getInt</B>(int&nbsp;location,
                  java.text.DecimalFormat&nbsp;format,
                  int&nbsp;defaultVal)</PRE>
<DL>
<DD>Retrieves the <code>int</code> value at specified
 <code>location</code> parsed using <code>format</code>.
 If the value does not exist or fails to parse into
 <code>int</code>, <code>defaultVal</code> is returned.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>location</CODE> - location of <code>int</code> value<DD><CODE>format</CODE> - <code>int</code> value parser to be used in extracting
 item.<DD><CODE>defaultVal</CODE> - default value to use in case of missing data or
 parse error.
<DT><B>Returns:</B><DD>an <code>int</code> value at specified <code>location</code>
 or the <code>defaultVal</code></DL>
</DD>
</DL>
<HR>

<A NAME="getInt(java.lang.String, int)"><!-- --></A><H3>
getInt</H3>
<PRE>
public int <B>getInt</B>(java.lang.String&nbsp;label,
                  int&nbsp;defaultVal)</PRE>
<DL>
<DD>Retrieves the <code>int</code> value under the specified
 column <code>label</code>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>label</CODE> - column label (header)<DD><CODE>defaultVal</CODE> - default value to use when value does not exist.
<DT><B>Returns:</B><DD><code>int</code> value corresponding to the
         specified column <code>label</code>.
         If the specified column <code>label</code>
         does not exist or cannot be convert into an
         <code>int</code> default value is returned.</DL>
</DD>
</DL>
<HR>

<A NAME="getString(int)"><!-- --></A><H3>
getString</H3>
<PRE>
public java.lang.String <B>getString</B>(int&nbsp;location)</PRE>
<DL>
<DD>Retrieves the String value contained in the 
 specified location.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>location</CODE> - an <code>int</code> value
<DT><B>Returns:</B><DD>a <code>String</code> value or emty String
         if specified location does not exist. (never
         returns null)</DL>
</DD>
</DL>
<HR>

<A NAME="getString(java.lang.String)"><!-- --></A><H3>
getString</H3>
<PRE>
public java.lang.String <B>getString</B>(java.lang.String&nbsp;label)</PRE>
<DL>
<DD>Retrieves the <code>String</code> value located
 under specified column <code>label</code>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>label</CODE> - column label
<DT><B>Returns:</B><DD>a <code>String</code> value corresponding
         to specified column <code>label</code>.  If the column
         does not exist, empty <code>String</code> is returned.</DL>
</DD>
</DL>
<HR>

<A NAME="getString(int, java.lang.String)"><!-- --></A><H3>
getString</H3>
<PRE>
public java.lang.String <B>getString</B>(int&nbsp;location,
                                  java.lang.String&nbsp;defaultVal)</PRE>
<DL>
<DD>Retrieves the String value contained in the
 specified location or <code>defaultVal</code> if it
 does not.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>location</CODE> - location of the item (starts at zero)<DD><CODE>defaultVal</CODE> - default value to use when the 
                   does not contain a value.
<DT><B>Returns:</B><DD>a <code>String</code> value at specified
         <code>location</code>.  If the value does not
         exist, <code>defaultVal</code> is returned.</DL>
</DD>
</DL>
<HR>

<A NAME="getString(java.lang.String, java.lang.String)"><!-- --></A><H3>
getString</H3>
<PRE>
public java.lang.String <B>getString</B>(java.lang.String&nbsp;label,
                                  java.lang.String&nbsp;defaultVal)</PRE>
<DL>
<DD>Retrieves the <code>String</code> value contained
 under the specified column <code>label</code>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>label</CODE> - column label<DD><CODE>defaultVal</CODE> - default value to return when value does not
                   exist or <code>label</code> fails to match
                   any of the column names in header row.
<DT><B>Returns:</B><DD>a <code>String</code> value corresponding to specified
         column <code>label</code>.  If no such column exists
         or the value is empty, <code>devaultVal</code> is
         returned.</DL>
</DD>
</DL>
<HR>

<A NAME="size()"><!-- --></A><H3>
size</H3>
<PRE>
public int <B>size</B>()</PRE>
<DL>
<DD>Retrieves the number of location in row.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>number of items contined in <code>DataRow</code></DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD><b>For debugging purpose</b>.
 Converts the row of data into String
<P>
<DD><DL>

<DT><B>Returns:</B><DD>String representation of data row.</DL>
</DD>
</DL>
<HR>

<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public void <B>clear</B>()</PRE>
<DL>
<DD>Remove the content of DataRow.
<P>
<DD><DL>
</DL>
</DD>
</DL>
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