filefilter.html

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<A NAME="prefix"><!-- --></A><H3>
prefix</H3>
<PRE>
protected java.lang.String <B>prefix</B></PRE>
<DL>
<DD>The prefix of the file to be matched. The value is set by the extractPrefixAndSuffix
 method. It should always have a value - even if it is just an empty string.</DL>
<HR>

<A NAME="suffix"><!-- --></A><H3>
suffix</H3>
<PRE>
protected java.lang.String <B>suffix</B></PRE>
<DL>
<DD>The suffix of the file to be matched. The value is set by the extractPrefixAndSuffix
 method.</DL>
<HR>

<A NAME="testSuffix"><!-- --></A><H3>
testSuffix</H3>
<PRE>
protected boolean <B>testSuffix</B></PRE>
<DL>
<DD>If true (the default) then both the suffix and prefix are used to match the filename.
 If false then only the prefix is matched.</DL>

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<A NAME="FileFilter(boolean)"><!-- --></A><H3>
FileFilter</H3>
<PRE>
public <B>FileFilter</B>(boolean&nbsp;testSuffix)</PRE>
<DL>
<DD>Create the filter with the flag set (if true - the default) which will test
 the suffix and prefix or if false it will test the prefix only</DL>
<HR>

<A NAME="FileFilter()"><!-- --></A><H3>
FileFilter</H3>
<PRE>
public <B>FileFilter</B>()</PRE>
<DL>
<DD>Create the filter with the default setting of testing both prefix and suffix</DL>

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<A NAME="extractPrefixAndSuffix(java.lang.String)"><!-- --></A><H3>
extractPrefixAndSuffix</H3>
<PRE>
protected void <B>extractPrefixAndSuffix</B>(java.lang.String&nbsp;fName)</PRE>
<DL>
<DD>It dissects the incoming fName (the name of a file) into a
 prefix which are all the characters of the fileName that precede
 the last occurance of a number in the filename and a suffix
 the extracts the characters that immediately follow the last occurance
 of a number in the fName. It stores the result of these into the instance
 variables prefix and suffix respectively.
 <P>
 Subclasses can overwrite this to produce their own semantic for extracting
 a prefix and suffix - they need to ensure that the instance variables are
 set with the appropriate values.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fName</CODE> - the name of the file that is to be disected.</DL>
</DD>
</DL>
<HR>

<A NAME="testFrameNumber(java.lang.String)"><!-- --></A><H3>
testFrameNumber</H3>
<PRE>
protected int <B>testFrameNumber</B>(java.lang.String&nbsp;fName)
                       throws java.lang.NumberFormatException</PRE>
<DL>
<DD>This method tests the frameNumber portion of the filename. If this
 string does NOT have a number it will throw a NumberFormatException.
 It returns the resulting number.<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="accept(java.io.File, java.lang.String)"><!-- --></A><H3>
accept</H3>
<PRE>
public boolean <B>accept</B>(java.io.File&nbsp;dir,
                      java.lang.String&nbsp;fName)</PRE>
<DL>
<DD>This method is used by the createSequence call to filter the files found
 in the supplied directory. It returns true if the filename matches the
 conditions (prefix and suffix are found in the file and between these there
 is a number). Both prefix and suffix can be empty but the frame number is required.<DD><DL>
<DT><B>Specified by: </B><DD><CODE>accept</CODE> in interface <CODE>java.io.FilenameFilter</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dir</CODE> - the directory being filtered<DD><CODE>fName</CODE> - the name of a file found within this directory<DT><B>Returns:</B><DD>true if the file matches the conditions otherwise false</DL>
</DD>
</DL>
<HR>

<A NAME="postProcess(java.lang.String[])"><!-- --></A><H3>
postProcess</H3>
<PRE>
protected java.lang.String[] <B>postProcess</B>(java.lang.String[]&nbsp;matchedFiles)</PRE>
<DL>
<DD>This method is called after the directory has been filtered. The incoming array
 contains both the file list (files found within the directory that have been accepted
 as a match) and the order of the files in this list is the order that the files will
 be added to the sequence. The method can alter this array (or return a new one). The
 returned array should contain no null values, and the order of the filenames in the
 returned array is the order that the files will be added to the sequence.
 <P>
 The default implementation returns the list as is.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>the</CODE> - matched list of files<DT><B>Returns:</B><DD>the ordered list of files that the sequence will be created from.</DL>
</DD>
</DL>
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