checkpoint.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

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<A NAME="VALIDITY_STAMP_FILENAME"><!-- --></A><H3>
VALIDITY_STAMP_FILENAME</H3>
<PRE>
public static final java.lang.String <B>VALIDITY_STAMP_FILENAME</B></PRE>
<DL>
<DD>Name of file written with timestamp into valid checkpoints.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.archive.crawler.datamodel.Checkpoint.VALIDITY_STAMP_FILENAME">Constant Field Values</A></DL>
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<A NAME="Checkpoint()"><!-- --></A><H3>
Checkpoint</H3>
<PRE>
protected <B>Checkpoint</B>()</PRE>
<DL>
<DD>Publically inaccessible default constructor.
<P>
</DL>
<HR>

<A NAME="Checkpoint(java.io.File)"><!-- --></A><H3>
Checkpoint</H3>
<PRE>
public <B>Checkpoint</B>(java.io.File&nbsp;checkpointDir)</PRE>
<DL>
<DD>Create a Checkpoint instance based on the given prexisting
 checkpoint directory
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>checkpointDir</CODE> - Directory that holds checkpoint.</DL>
</DL>

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<A NAME="readValid()"><!-- --></A><H3>
readValid</H3>
<PRE>
protected void <B>readValid</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="isValid()"><!-- --></A><H3>
isValid</H3>
<PRE>
public boolean <B>isValid</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>Return true if this checkpoint appears complete/resumable
 (has 'valid' stamp file).</DL>
</DD>
</DL>
<HR>

<A NAME="getName()"><!-- --></A><H3>
getName</H3>
<PRE>
public java.lang.String <B>getName</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>Returns name of this Checkpoint</DL>
</DD>
</DL>
<HR>

<A NAME="getDisplayName()"><!-- --></A><H3>
getDisplayName</H3>
<PRE>
public java.lang.String <B>getDisplayName</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>Return the combination of given name and timestamp most commonly
 used in administrative interface.</DL>
</DD>
</DL>
<HR>

<A NAME="getTimestamp()"><!-- --></A><H3>
getTimestamp</H3>
<PRE>
public java.lang.String <B>getTimestamp</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>Returns the timestamp.</DL>
</DD>
</DL>
<HR>

<A NAME="getDirectory()"><!-- --></A><H3>
getDirectory</H3>
<PRE>
public java.io.File <B>getDirectory</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>Returns the checkpoint directory.</DL>
</DD>
</DL>
<HR>

<A NAME="hasBdbjeLogs()"><!-- --></A><H3>
hasBdbjeLogs</H3>
<PRE>
public boolean <B>hasBdbjeLogs</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>True if this checkpoint contains bdb logs (It won't if we're
 doing 'fast' checkpoints).</DL>
</DD>
</DL>
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