package-use.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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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shared facilities for Frontier implementations.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/AdaptiveRevisitAttributeConstants.html#org.archive.crawler.frontier"><B>AdaptiveRevisitAttributeConstants</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Defines static constants for the Adaptive Revisiting module defining data
 keys in the CrawlURI AList.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/AdaptiveRevisitHostQueue.html#org.archive.crawler.frontier"><B>AdaptiveRevisitHostQueue</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A priority based queue of CrawlURIs.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/AdaptiveRevisitQueueList.html#org.archive.crawler.frontier"><B>AdaptiveRevisitQueueList</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Maintains an ordered list of <A HREF="../../../../org/archive/crawler/frontier/AdaptiveRevisitHostQueue.html" title="class in org.archive.crawler.frontier"><CODE>AdaptiveRevisitHostQueue</CODE></A>s used by a
 Frontier.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/BdbFrontier.html#org.archive.crawler.frontier"><B>BdbFrontier</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A Frontier using several BerkeleyDB JE Databases to hold its record of
 known hosts (queues), and pending URIs.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/BdbMultipleWorkQueues.html#org.archive.crawler.frontier"><B>BdbMultipleWorkQueues</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A BerkeleyDB-database-backed structure for holding ordered
 groupings of CrawlURIs.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/CostAssignmentPolicy.html#org.archive.crawler.frontier"><B>CostAssignmentPolicy</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculate a integer 'cost' value for the given CrawlURI.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/FrontierJournal.html#org.archive.crawler.frontier"><B>FrontierJournal</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Record of key Frontier happenings.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/HostnameQueueAssignmentPolicy.html#org.archive.crawler.frontier"><B>HostnameQueueAssignmentPolicy</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;QueueAssignmentPolicy based on the hostname:port evident in the given
 CrawlURI.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/QueueAssignmentPolicy.html#org.archive.crawler.frontier"><B>QueueAssignmentPolicy</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Establishes a mapping from CrawlURIs to String keys (queue names).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/WagCostAssignmentPolicy.html#org.archive.crawler.frontier"><B>WagCostAssignmentPolicy</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A CostAssignmentPolicy based on some wild guesses of kinds of URIs
 that should be deferred into the (potentially never-crawled) future.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/WorkQueue.html#org.archive.crawler.frontier"><B>WorkQueue</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A single queue of related URIs to visit, grouped by a classKey
 (typically "hostname:port" or similar)</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/WorkQueueFrontier.html#org.archive.crawler.frontier"><B>WorkQueueFrontier</B></A></B>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A common Frontier base using several queues to hold pending URIs.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/WorkQueueFrontier.WakeTask.html#org.archive.crawler.frontier"><B>WorkQueueFrontier.WakeTask</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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Classes in <A HREF="../../../../org/archive/crawler/frontier/package-summary.html">org.archive.crawler.frontier</A> used by <A HREF="../../../../org/archive/crawler/postprocessor/package-summary.html">org.archive.crawler.postprocessor</A></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><B><A HREF="../../../../org/archive/crawler/frontier/class-use/AdaptiveRevisitAttributeConstants.html#org.archive.crawler.postprocessor"><B>AdaptiveRevisitAttributeConstants</B></A></B>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Defines static constants for the Adaptive Revisiting module defining data
 keys in the CrawlURI AList.</TD>
</TR>
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