http://git-wip-us.apache.org/repos/asf/hbase/blob/2fa570dd/xref/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html ---------------------------------------------------------------------- diff --git a/xref/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html b/xref/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html index 59ebc09..48acf8c 100644 --- a/xref/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html +++ b/xref/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html @@ -170,513 +170,518 @@ <a class="jxr_linenumber" name="160" href="#160">160</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">ScanQueryMatcher</a>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a> scan, <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanInfo.html">ScanInfo</a> scanInfo, NavigableSet<byte[]> columns, <a class="jxr_linenumber" name="161" href="#161">161</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanType.html">ScanType</a> scanType, <strong class="jxr_keyword">long</strong> readPointToUse, <strong class="jxr_keyword">long</strong> earliestPutTs, <strong class="jxr_keyword">long</strong> oldestUnexpiredTS, <a class="jxr_linenumber" name="162" href="#162">162</a> <strong class="jxr_keyword">long</strong> now, <a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.html">RegionCoprocessorHost</a> regionCoprocessorHost) <strong class="jxr_keyword">throws</strong> IOException { -<a class="jxr_linenumber" name="163" href="#163">163</a> <strong class="jxr_keyword">this</strong>.tr = scan.getTimeRange(); -<a class="jxr_linenumber" name="164" href="#164">164</a> <strong class="jxr_keyword">this</strong>.rowComparator = scanInfo.getComparator(); -<a class="jxr_linenumber" name="165" href="#165">165</a> <strong class="jxr_keyword">this</strong>.regionCoprocessorHost = regionCoprocessorHost; -<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">this</strong>.deletes = instantiateDeleteTracker(); -<a class="jxr_linenumber" name="167" href="#167">167</a> <strong class="jxr_keyword">this</strong>.stopRow = scan.getStopRow(); -<a class="jxr_linenumber" name="168" href="#168">168</a> <strong class="jxr_keyword">this</strong>.startKey = CellUtil.createFirstDeleteFamilyCellOnRow(scan.getStartRow(), -<a class="jxr_linenumber" name="169" href="#169">169</a> scanInfo.getFamily()); -<a class="jxr_linenumber" name="170" href="#170">170</a> <strong class="jxr_keyword">this</strong>.filter = scan.getFilter(); -<a class="jxr_linenumber" name="171" href="#171">171</a> <strong class="jxr_keyword">this</strong>.earliestPutTs = earliestPutTs; -<a class="jxr_linenumber" name="172" href="#172">172</a> <strong class="jxr_keyword">this</strong>.oldestUnexpiredTS = oldestUnexpiredTS; -<a class="jxr_linenumber" name="173" href="#173">173</a> <strong class="jxr_keyword">this</strong>.now = now; -<a class="jxr_linenumber" name="174" href="#174">174</a> -<a class="jxr_linenumber" name="175" href="#175">175</a> <strong class="jxr_keyword">this</strong>.maxReadPointToTrackVersions = readPointToUse; -<a class="jxr_linenumber" name="176" href="#176">176</a> <strong class="jxr_keyword">this</strong>.timeToPurgeDeletes = scanInfo.getTimeToPurgeDeletes(); -<a class="jxr_linenumber" name="177" href="#177">177</a> <strong class="jxr_keyword">this</strong>.ttl = oldestUnexpiredTS; -<a class="jxr_linenumber" name="178" href="#178">178</a> -<a class="jxr_linenumber" name="179" href="#179">179</a> <em class="jxr_comment">/*<em class="jxr_comment"> how to deal with deletes */</em></em> -<a class="jxr_linenumber" name="180" href="#180">180</a> <strong class="jxr_keyword">this</strong>.isUserScan = scanType == ScanType.USER_SCAN; -<a class="jxr_linenumber" name="181" href="#181">181</a> <em class="jxr_comment">// keep deleted cells: if compaction or raw scan</em> -<a class="jxr_linenumber" name="182" href="#182">182</a> <strong class="jxr_keyword">this</strong>.keepDeletedCells = scan.isRaw() ? KeepDeletedCells.TRUE : -<a class="jxr_linenumber" name="183" href="#183">183</a> isUserScan ? KeepDeletedCells.FALSE : scanInfo.getKeepDeletedCells(); -<a class="jxr_linenumber" name="184" href="#184">184</a> <em class="jxr_comment">// retain deletes: if minor compaction or raw scanisDone</em> -<a class="jxr_linenumber" name="185" href="#185">185</a> <strong class="jxr_keyword">this</strong>.retainDeletesInOutput = scanType == ScanType.COMPACT_RETAIN_DELETES || scan.isRaw(); -<a class="jxr_linenumber" name="186" href="#186">186</a> <em class="jxr_comment">// seePastDeleteMarker: user initiated scans</em> -<a class="jxr_linenumber" name="187" href="#187">187</a> <strong class="jxr_keyword">this</strong>.seePastDeleteMarkers = -<a class="jxr_linenumber" name="188" href="#188">188</a> scanInfo.getKeepDeletedCells() != KeepDeletedCells.FALSE && isUserScan; -<a class="jxr_linenumber" name="189" href="#189">189</a> -<a class="jxr_linenumber" name="190" href="#190">190</a> <strong class="jxr_keyword">int</strong> maxVersions = -<a class="jxr_linenumber" name="191" href="#191">191</a> scan.isRaw() ? scan.getMaxVersions() : Math.min(scan.getMaxVersions(), -<a class="jxr_linenumber" name="192" href="#192">192</a> scanInfo.getMaxVersions()); -<a class="jxr_linenumber" name="193" href="#193">193</a> -<a class="jxr_linenumber" name="194" href="#194">194</a> <em class="jxr_comment">// Single branch to deal with two types of reads (columns vs all in family)</em> -<a class="jxr_linenumber" name="195" href="#195">195</a> <strong class="jxr_keyword">if</strong> (columns == <strong class="jxr_keyword">null</strong> || columns.size() == 0) { -<a class="jxr_linenumber" name="196" href="#196">196</a> <em class="jxr_comment">// there is always a null column in the wildcard column query.</em> -<a class="jxr_linenumber" name="197" href="#197">197</a> hasNullColumn = <strong class="jxr_keyword">true</strong>; +<a class="jxr_linenumber" name="163" href="#163">163</a> <a href="../../../../../org/apache/hadoop/hbase/io/TimeRange.html">TimeRange</a> timeRange = scan.getColumnFamilyTimeRange().get(scanInfo.getFamily()); +<a class="jxr_linenumber" name="164" href="#164">164</a> <strong class="jxr_keyword">if</strong> (timeRange == <strong class="jxr_keyword">null</strong>) { +<a class="jxr_linenumber" name="165" href="#165">165</a> <strong class="jxr_keyword">this</strong>.tr = scan.getTimeRange(); +<a class="jxr_linenumber" name="166" href="#166">166</a> } <strong class="jxr_keyword">else</strong> { +<a class="jxr_linenumber" name="167" href="#167">167</a> <strong class="jxr_keyword">this</strong>.tr = timeRange; +<a class="jxr_linenumber" name="168" href="#168">168</a> } +<a class="jxr_linenumber" name="169" href="#169">169</a> <strong class="jxr_keyword">this</strong>.rowComparator = scanInfo.getComparator(); +<a class="jxr_linenumber" name="170" href="#170">170</a> <strong class="jxr_keyword">this</strong>.regionCoprocessorHost = regionCoprocessorHost; +<a class="jxr_linenumber" name="171" href="#171">171</a> <strong class="jxr_keyword">this</strong>.deletes = instantiateDeleteTracker(); +<a class="jxr_linenumber" name="172" href="#172">172</a> <strong class="jxr_keyword">this</strong>.stopRow = scan.getStopRow(); +<a class="jxr_linenumber" name="173" href="#173">173</a> <strong class="jxr_keyword">this</strong>.startKey = CellUtil.createFirstDeleteFamilyCellOnRow(scan.getStartRow(), +<a class="jxr_linenumber" name="174" href="#174">174</a> scanInfo.getFamily()); +<a class="jxr_linenumber" name="175" href="#175">175</a> <strong class="jxr_keyword">this</strong>.filter = scan.getFilter(); +<a class="jxr_linenumber" name="176" href="#176">176</a> <strong class="jxr_keyword">this</strong>.earliestPutTs = earliestPutTs; +<a class="jxr_linenumber" name="177" href="#177">177</a> <strong class="jxr_keyword">this</strong>.oldestUnexpiredTS = oldestUnexpiredTS; +<a class="jxr_linenumber" name="178" href="#178">178</a> <strong class="jxr_keyword">this</strong>.now = now; +<a class="jxr_linenumber" name="179" href="#179">179</a> +<a class="jxr_linenumber" name="180" href="#180">180</a> <strong class="jxr_keyword">this</strong>.maxReadPointToTrackVersions = readPointToUse; +<a class="jxr_linenumber" name="181" href="#181">181</a> <strong class="jxr_keyword">this</strong>.timeToPurgeDeletes = scanInfo.getTimeToPurgeDeletes(); +<a class="jxr_linenumber" name="182" href="#182">182</a> <strong class="jxr_keyword">this</strong>.ttl = oldestUnexpiredTS; +<a class="jxr_linenumber" name="183" href="#183">183</a> +<a class="jxr_linenumber" name="184" href="#184">184</a> <em class="jxr_comment">/*<em class="jxr_comment"> how to deal with deletes */</em></em> +<a class="jxr_linenumber" name="185" href="#185">185</a> <strong class="jxr_keyword">this</strong>.isUserScan = scanType == ScanType.USER_SCAN; +<a class="jxr_linenumber" name="186" href="#186">186</a> <em class="jxr_comment">// keep deleted cells: if compaction or raw scan</em> +<a class="jxr_linenumber" name="187" href="#187">187</a> <strong class="jxr_keyword">this</strong>.keepDeletedCells = scan.isRaw() ? KeepDeletedCells.TRUE : +<a class="jxr_linenumber" name="188" href="#188">188</a> isUserScan ? KeepDeletedCells.FALSE : scanInfo.getKeepDeletedCells(); +<a class="jxr_linenumber" name="189" href="#189">189</a> <em class="jxr_comment">// retain deletes: if minor compaction or raw scanisDone</em> +<a class="jxr_linenumber" name="190" href="#190">190</a> <strong class="jxr_keyword">this</strong>.retainDeletesInOutput = scanType == ScanType.COMPACT_RETAIN_DELETES || scan.isRaw(); +<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_comment">// seePastDeleteMarker: user initiated scans</em> +<a class="jxr_linenumber" name="192" href="#192">192</a> <strong class="jxr_keyword">this</strong>.seePastDeleteMarkers = +<a class="jxr_linenumber" name="193" href="#193">193</a> scanInfo.getKeepDeletedCells() != KeepDeletedCells.FALSE && isUserScan; +<a class="jxr_linenumber" name="194" href="#194">194</a> +<a class="jxr_linenumber" name="195" href="#195">195</a> <strong class="jxr_keyword">int</strong> maxVersions = +<a class="jxr_linenumber" name="196" href="#196">196</a> scan.isRaw() ? scan.getMaxVersions() : Math.min(scan.getMaxVersions(), +<a class="jxr_linenumber" name="197" href="#197">197</a> scanInfo.getMaxVersions()); <a class="jxr_linenumber" name="198" href="#198">198</a> -<a class="jxr_linenumber" name="199" href="#199">199</a> <em class="jxr_comment">// use a specialized scan for wildcard column tracker.</em> -<a class="jxr_linenumber" name="200" href="#200">200</a> <strong class="jxr_keyword">this</strong>.columns = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanWildcardColumnTracker.html">ScanWildcardColumnTracker</a>( -<a class="jxr_linenumber" name="201" href="#201">201</a> scanInfo.getMinVersions(), maxVersions, oldestUnexpiredTS); -<a class="jxr_linenumber" name="202" href="#202">202</a> } <strong class="jxr_keyword">else</strong> { -<a class="jxr_linenumber" name="203" href="#203">203</a> <em class="jxr_comment">// whether there is null column in the explicit column query</em> -<a class="jxr_linenumber" name="204" href="#204">204</a> hasNullColumn = (columns.first().length == 0); -<a class="jxr_linenumber" name="205" href="#205">205</a> -<a class="jxr_linenumber" name="206" href="#206">206</a> <em class="jxr_comment">// We can share the ExplicitColumnTracker, diff is we reset</em> -<a class="jxr_linenumber" name="207" href="#207">207</a> <em class="jxr_comment">// between rows, not between storefiles.</em> -<a class="jxr_linenumber" name="208" href="#208">208</a> <strong class="jxr_keyword">this</strong>.columns = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ExplicitColumnTracker.html">ExplicitColumnTracker</a>(columns, scanInfo.getMinVersions(), maxVersions, -<a class="jxr_linenumber" name="209" href="#209">209</a> oldestUnexpiredTS); -<a class="jxr_linenumber" name="210" href="#210">210</a> } -<a class="jxr_linenumber" name="211" href="#211">211</a> <strong class="jxr_keyword">this</strong>.isReversed = scan.isReversed(); -<a class="jxr_linenumber" name="212" href="#212">212</a> } -<a class="jxr_linenumber" name="213" href="#213">213</a> -<a class="jxr_linenumber" name="214" href="#214">214</a> <strong class="jxr_keyword">private</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/DeleteTracker.html">DeleteTracker</a> instantiateDeleteTracker() <strong class="jxr_keyword">throws</strong> IOException { -<a class="jxr_linenumber" name="215" href="#215">215</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/DeleteTracker.html">DeleteTracker</a> tracker = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanDeleteTracker.html">ScanDeleteTracker</a>(); -<a class="jxr_linenumber" name="216" href="#216">216</a> <strong class="jxr_keyword">if</strong> (regionCoprocessorHost != <strong class="jxr_keyword">null</strong>) { -<a class="jxr_linenumber" name="217" href="#217">217</a> tracker = regionCoprocessorHost.postInstantiateDeleteTracker(tracker); -<a class="jxr_linenumber" name="218" href="#218">218</a> } -<a class="jxr_linenumber" name="219" href="#219">219</a> <strong class="jxr_keyword">return</strong> tracker; -<a class="jxr_linenumber" name="220" href="#220">220</a> } -<a class="jxr_linenumber" name="221" href="#221">221</a> -<a class="jxr_linenumber" name="222" href="#222">222</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="223" href="#223">223</a> <em class="jxr_javadoccomment"> * Construct a QueryMatcher for a scan that drop deletes from a limited range of rows.</em> -<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_javadoccomment"> * @param scan</em> -<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_javadoccomment"> * @param scanInfo The store's immutable scan info</em> -<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_javadoccomment"> * @param columns</em> -<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_javadoccomment"> * @param earliestPutTs Earliest put seen in any of the store files.</em> -<a class="jxr_linenumber" name="228" href="#228">228</a> <em class="jxr_javadoccomment"> * @param oldestUnexpiredTS the oldest timestamp we are interested in, based on TTL</em> -<a class="jxr_linenumber" name="229" href="#229">229</a> <em class="jxr_javadoccomment"> * @param now the current server time</em> -<a class="jxr_linenumber" name="230" href="#230">230</a> <em class="jxr_javadoccomment"> * @param dropDeletesFromRow The inclusive left bound of the range; can be EMPTY_START_ROW.</em> -<a class="jxr_linenumber" name="231" href="#231">231</a> <em class="jxr_javadoccomment"> * @param dropDeletesToRow The exclusive right bound of the range; can be EMPTY_END_ROW.</em> -<a class="jxr_linenumber" name="232" href="#232">232</a> <em class="jxr_javadoccomment"> * @param regionCoprocessorHost </em> -<a class="jxr_linenumber" name="233" href="#233">233</a> <em class="jxr_javadoccomment"> * @throws IOException </em> -<a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="235" href="#235">235</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">ScanQueryMatcher</a>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a> scan, <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanInfo.html">ScanInfo</a> scanInfo, NavigableSet<byte[]> columns, -<a class="jxr_linenumber" name="236" href="#236">236</a> <strong class="jxr_keyword">long</strong> readPointToUse, <strong class="jxr_keyword">long</strong> earliestPutTs, <strong class="jxr_keyword">long</strong> oldestUnexpiredTS, <strong class="jxr_keyword">long</strong> now, -<a class="jxr_linenumber" name="237" href="#237">237</a> byte[] dropDeletesFromRow, byte[] dropDeletesToRow, -<a class="jxr_linenumber" name="238" href="#238">238</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.html">RegionCoprocessorHost</a> regionCoprocessorHost) <strong class="jxr_keyword">throws</strong> IOException { -<a class="jxr_linenumber" name="239" href="#239">239</a> <strong class="jxr_keyword">this</strong>(scan, scanInfo, columns, ScanType.COMPACT_RETAIN_DELETES, readPointToUse, earliestPutTs, -<a class="jxr_linenumber" name="240" href="#240">240</a> oldestUnexpiredTS, now, regionCoprocessorHost); -<a class="jxr_linenumber" name="241" href="#241">241</a> Preconditions.checkArgument((dropDeletesFromRow != <strong class="jxr_keyword">null</strong>) && (dropDeletesToRow != <strong class="jxr_keyword">null</strong>)); -<a class="jxr_linenumber" name="242" href="#242">242</a> <strong class="jxr_keyword">this</strong>.dropDeletesFromRow = dropDeletesFromRow; -<a class="jxr_linenumber" name="243" href="#243">243</a> <strong class="jxr_keyword">this</strong>.dropDeletesToRow = dropDeletesToRow; -<a class="jxr_linenumber" name="244" href="#244">244</a> } -<a class="jxr_linenumber" name="245" href="#245">245</a> -<a class="jxr_linenumber" name="246" href="#246">246</a> <em class="jxr_comment">/*</em> -<a class="jxr_linenumber" name="247" href="#247">247</a> <em class="jxr_comment"> * Constructor for tests</em> -<a class="jxr_linenumber" name="248" href="#248">248</a> <em class="jxr_comment"> */</em> -<a class="jxr_linenumber" name="249" href="#249">249</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">ScanQueryMatcher</a>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a> scan, <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanInfo.html">ScanInfo</a> scanInfo, -<a class="jxr_linenumber" name="250" href="#250">250</a> NavigableSet<byte[]> columns, <strong class="jxr_keyword">long</strong> oldestUnexpiredTS, <strong class="jxr_keyword">long</strong> now) <strong class="jxr_keyword">throws</strong> IOException { -<a class="jxr_linenumber" name="251" href="#251">251</a> <strong class="jxr_keyword">this</strong>(scan, scanInfo, columns, ScanType.USER_SCAN, -<a class="jxr_linenumber" name="252" href="#252">252</a> Long.MAX_VALUE, <em class="jxr_comment">/*<em class="jxr_comment"> max Readpoint to track versions */</em></em> -<a class="jxr_linenumber" name="253" href="#253">253</a> HConstants.LATEST_TIMESTAMP, oldestUnexpiredTS, now, <strong class="jxr_keyword">null</strong>); -<a class="jxr_linenumber" name="254" href="#254">254</a> } -<a class="jxr_linenumber" name="255" href="#255">255</a> -<a class="jxr_linenumber" name="256" href="#256">256</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="257" href="#257">257</a> <em class="jxr_javadoccomment"> *</em> -<a class="jxr_linenumber" name="258" href="#258">258</a> <em class="jxr_javadoccomment"> * @return whether there is an null column in the query</em> -<a class="jxr_linenumber" name="259" href="#259">259</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="260" href="#260">260</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> hasNullColumnInQuery() { -<a class="jxr_linenumber" name="261" href="#261">261</a> <strong class="jxr_keyword">return</strong> hasNullColumn; -<a class="jxr_linenumber" name="262" href="#262">262</a> } -<a class="jxr_linenumber" name="263" href="#263">263</a> -<a class="jxr_linenumber" name="264" href="#264">264</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="265" href="#265">265</a> <em class="jxr_javadoccomment"> * Determines if the caller should do one of several things:</em> -<a class="jxr_linenumber" name="266" href="#266">266</a> <em class="jxr_javadoccomment"> * - seek/skip to the next row (MatchCode.SEEK_NEXT_ROW)</em> -<a class="jxr_linenumber" name="267" href="#267">267</a> <em class="jxr_javadoccomment"> * - seek/skip to the next column (MatchCode.SEEK_NEXT_COL)</em> -<a class="jxr_linenumber" name="268" href="#268">268</a> <em class="jxr_javadoccomment"> * - include the current KeyValue (MatchCode.INCLUDE)</em> -<a class="jxr_linenumber" name="269" href="#269">269</a> <em class="jxr_javadoccomment"> * - ignore the current KeyValue (MatchCode.SKIP)</em> -<a class="jxr_linenumber" name="270" href="#270">270</a> <em class="jxr_javadoccomment"> * - got to the next row (MatchCode.DONE)</em> -<a class="jxr_linenumber" name="271" href="#271">271</a> <em class="jxr_javadoccomment"> *</em> -<a class="jxr_linenumber" name="272" href="#272">272</a> <em class="jxr_javadoccomment"> * @param cell KeyValue to check</em> -<a class="jxr_linenumber" name="273" href="#273">273</a> <em class="jxr_javadoccomment"> * @return The match code instance.</em> -<a class="jxr_linenumber" name="274" href="#274">274</a> <em class="jxr_javadoccomment"> * @throws IOException in case there is an internal consistency problem</em> -<a class="jxr_linenumber" name="275" href="#275">275</a> <em class="jxr_javadoccomment"> * caused by a data corruption.</em> -<a class="jxr_linenumber" name="276" href="#276">276</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="277" href="#277">277</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">MatchCode</a> match(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) <strong class="jxr_keyword">throws</strong> IOException { -<a class="jxr_linenumber" name="278" href="#278">278</a> <strong class="jxr_keyword">if</strong> (filter != <strong class="jxr_keyword">null</strong> && filter.filterAllRemaining()) { -<a class="jxr_linenumber" name="279" href="#279">279</a> <strong class="jxr_keyword">return</strong> MatchCode.DONE_SCAN; -<a class="jxr_linenumber" name="280" href="#280">280</a> } -<a class="jxr_linenumber" name="281" href="#281">281</a> <strong class="jxr_keyword">int</strong> ret = <strong class="jxr_keyword">this</strong>.rowComparator.compareRows(curCell, cell); -<a class="jxr_linenumber" name="282" href="#282">282</a> <strong class="jxr_keyword">if</strong> (!<strong class="jxr_keyword">this</strong>.isReversed) { -<a class="jxr_linenumber" name="283" href="#283">283</a> <strong class="jxr_keyword">if</strong> (ret <= -1) { -<a class="jxr_linenumber" name="284" href="#284">284</a> <strong class="jxr_keyword">return</strong> MatchCode.DONE; -<a class="jxr_linenumber" name="285" href="#285">285</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ret >= 1) { -<a class="jxr_linenumber" name="286" href="#286">286</a> <em class="jxr_comment">// could optimize this, if necessary?</em> -<a class="jxr_linenumber" name="287" href="#287">287</a> <em class="jxr_comment">// Could also be called SEEK_TO_CURRENT_ROW, but this</em> -<a class="jxr_linenumber" name="288" href="#288">288</a> <em class="jxr_comment">// should be rare/never happens.</em> -<a class="jxr_linenumber" name="289" href="#289">289</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; -<a class="jxr_linenumber" name="290" href="#290">290</a> } -<a class="jxr_linenumber" name="291" href="#291">291</a> } <strong class="jxr_keyword">else</strong> { -<a class="jxr_linenumber" name="292" href="#292">292</a> <strong class="jxr_keyword">if</strong> (ret <= -1) { -<a class="jxr_linenumber" name="293" href="#293">293</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; -<a class="jxr_linenumber" name="294" href="#294">294</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ret >= 1) { -<a class="jxr_linenumber" name="295" href="#295">295</a> <strong class="jxr_keyword">return</strong> MatchCode.DONE; -<a class="jxr_linenumber" name="296" href="#296">296</a> } -<a class="jxr_linenumber" name="297" href="#297">297</a> } -<a class="jxr_linenumber" name="298" href="#298">298</a> -<a class="jxr_linenumber" name="299" href="#299">299</a> <em class="jxr_comment">// optimize case.</em> -<a class="jxr_linenumber" name="300" href="#300">300</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.stickyNextRow) -<a class="jxr_linenumber" name="301" href="#301">301</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; -<a class="jxr_linenumber" name="302" href="#302">302</a> -<a class="jxr_linenumber" name="303" href="#303">303</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.columns.done()) { -<a class="jxr_linenumber" name="304" href="#304">304</a> stickyNextRow = <strong class="jxr_keyword">true</strong>; -<a class="jxr_linenumber" name="305" href="#305">305</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; -<a class="jxr_linenumber" name="306" href="#306">306</a> } +<a class="jxr_linenumber" name="199" href="#199">199</a> <em class="jxr_comment">// Single branch to deal with two types of reads (columns vs all in family)</em> +<a class="jxr_linenumber" name="200" href="#200">200</a> <strong class="jxr_keyword">if</strong> (columns == <strong class="jxr_keyword">null</strong> || columns.size() == 0) { +<a class="jxr_linenumber" name="201" href="#201">201</a> <em class="jxr_comment">// there is always a null column in the wildcard column query.</em> +<a class="jxr_linenumber" name="202" href="#202">202</a> hasNullColumn = <strong class="jxr_keyword">true</strong>; +<a class="jxr_linenumber" name="203" href="#203">203</a> +<a class="jxr_linenumber" name="204" href="#204">204</a> <em class="jxr_comment">// use a specialized scan for wildcard column tracker.</em> +<a class="jxr_linenumber" name="205" href="#205">205</a> <strong class="jxr_keyword">this</strong>.columns = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanWildcardColumnTracker.html">ScanWildcardColumnTracker</a>( +<a class="jxr_linenumber" name="206" href="#206">206</a> scanInfo.getMinVersions(), maxVersions, oldestUnexpiredTS); +<a class="jxr_linenumber" name="207" href="#207">207</a> } <strong class="jxr_keyword">else</strong> { +<a class="jxr_linenumber" name="208" href="#208">208</a> <em class="jxr_comment">// whether there is null column in the explicit column query</em> +<a class="jxr_linenumber" name="209" href="#209">209</a> hasNullColumn = (columns.first().length == 0); +<a class="jxr_linenumber" name="210" href="#210">210</a> +<a class="jxr_linenumber" name="211" href="#211">211</a> <em class="jxr_comment">// We can share the ExplicitColumnTracker, diff is we reset</em> +<a class="jxr_linenumber" name="212" href="#212">212</a> <em class="jxr_comment">// between rows, not between storefiles.</em> +<a class="jxr_linenumber" name="213" href="#213">213</a> <strong class="jxr_keyword">this</strong>.columns = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ExplicitColumnTracker.html">ExplicitColumnTracker</a>(columns, scanInfo.getMinVersions(), maxVersions, +<a class="jxr_linenumber" name="214" href="#214">214</a> oldestUnexpiredTS); +<a class="jxr_linenumber" name="215" href="#215">215</a> } +<a class="jxr_linenumber" name="216" href="#216">216</a> <strong class="jxr_keyword">this</strong>.isReversed = scan.isReversed(); +<a class="jxr_linenumber" name="217" href="#217">217</a> } +<a class="jxr_linenumber" name="218" href="#218">218</a> +<a class="jxr_linenumber" name="219" href="#219">219</a> <strong class="jxr_keyword">private</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/DeleteTracker.html">DeleteTracker</a> instantiateDeleteTracker() <strong class="jxr_keyword">throws</strong> IOException { +<a class="jxr_linenumber" name="220" href="#220">220</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/DeleteTracker.html">DeleteTracker</a> tracker = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanDeleteTracker.html">ScanDeleteTracker</a>(); +<a class="jxr_linenumber" name="221" href="#221">221</a> <strong class="jxr_keyword">if</strong> (regionCoprocessorHost != <strong class="jxr_keyword">null</strong>) { +<a class="jxr_linenumber" name="222" href="#222">222</a> tracker = regionCoprocessorHost.postInstantiateDeleteTracker(tracker); +<a class="jxr_linenumber" name="223" href="#223">223</a> } +<a class="jxr_linenumber" name="224" href="#224">224</a> <strong class="jxr_keyword">return</strong> tracker; +<a class="jxr_linenumber" name="225" href="#225">225</a> } +<a class="jxr_linenumber" name="226" href="#226">226</a> +<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_javadoccomment">/**</em> +<a class="jxr_linenumber" name="228" href="#228">228</a> <em class="jxr_javadoccomment"> * Construct a QueryMatcher for a scan that drop deletes from a limited range of rows.</em> +<a class="jxr_linenumber" name="229" href="#229">229</a> <em class="jxr_javadoccomment"> * @param scan</em> +<a class="jxr_linenumber" name="230" href="#230">230</a> <em class="jxr_javadoccomment"> * @param scanInfo The store's immutable scan info</em> +<a class="jxr_linenumber" name="231" href="#231">231</a> <em class="jxr_javadoccomment"> * @param columns</em> +<a class="jxr_linenumber" name="232" href="#232">232</a> <em class="jxr_javadoccomment"> * @param earliestPutTs Earliest put seen in any of the store files.</em> +<a class="jxr_linenumber" name="233" href="#233">233</a> <em class="jxr_javadoccomment"> * @param oldestUnexpiredTS the oldest timestamp we are interested in, based on TTL</em> +<a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_javadoccomment"> * @param now the current server time</em> +<a class="jxr_linenumber" name="235" href="#235">235</a> <em class="jxr_javadoccomment"> * @param dropDeletesFromRow The inclusive left bound of the range; can be EMPTY_START_ROW.</em> +<a class="jxr_linenumber" name="236" href="#236">236</a> <em class="jxr_javadoccomment"> * @param dropDeletesToRow The exclusive right bound of the range; can be EMPTY_END_ROW.</em> +<a class="jxr_linenumber" name="237" href="#237">237</a> <em class="jxr_javadoccomment"> * @param regionCoprocessorHost </em> +<a class="jxr_linenumber" name="238" href="#238">238</a> <em class="jxr_javadoccomment"> * @throws IOException </em> +<a class="jxr_linenumber" name="239" href="#239">239</a> <em class="jxr_javadoccomment"> */</em> +<a class="jxr_linenumber" name="240" href="#240">240</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">ScanQueryMatcher</a>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a> scan, <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanInfo.html">ScanInfo</a> scanInfo, NavigableSet<byte[]> columns, +<a class="jxr_linenumber" name="241" href="#241">241</a> <strong class="jxr_keyword">long</strong> readPointToUse, <strong class="jxr_keyword">long</strong> earliestPutTs, <strong class="jxr_keyword">long</strong> oldestUnexpiredTS, <strong class="jxr_keyword">long</strong> now, +<a class="jxr_linenumber" name="242" href="#242">242</a> byte[] dropDeletesFromRow, byte[] dropDeletesToRow, +<a class="jxr_linenumber" name="243" href="#243">243</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.html">RegionCoprocessorHost</a> regionCoprocessorHost) <strong class="jxr_keyword">throws</strong> IOException { +<a class="jxr_linenumber" name="244" href="#244">244</a> <strong class="jxr_keyword">this</strong>(scan, scanInfo, columns, ScanType.COMPACT_RETAIN_DELETES, readPointToUse, earliestPutTs, +<a class="jxr_linenumber" name="245" href="#245">245</a> oldestUnexpiredTS, now, regionCoprocessorHost); +<a class="jxr_linenumber" name="246" href="#246">246</a> Preconditions.checkArgument((dropDeletesFromRow != <strong class="jxr_keyword">null</strong>) && (dropDeletesToRow != <strong class="jxr_keyword">null</strong>)); +<a class="jxr_linenumber" name="247" href="#247">247</a> <strong class="jxr_keyword">this</strong>.dropDeletesFromRow = dropDeletesFromRow; +<a class="jxr_linenumber" name="248" href="#248">248</a> <strong class="jxr_keyword">this</strong>.dropDeletesToRow = dropDeletesToRow; +<a class="jxr_linenumber" name="249" href="#249">249</a> } +<a class="jxr_linenumber" name="250" href="#250">250</a> +<a class="jxr_linenumber" name="251" href="#251">251</a> <em class="jxr_comment">/*</em> +<a class="jxr_linenumber" name="252" href="#252">252</a> <em class="jxr_comment"> * Constructor for tests</em> +<a class="jxr_linenumber" name="253" href="#253">253</a> <em class="jxr_comment"> */</em> +<a class="jxr_linenumber" name="254" href="#254">254</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">ScanQueryMatcher</a>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a> scan, <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanInfo.html">ScanInfo</a> scanInfo, +<a class="jxr_linenumber" name="255" href="#255">255</a> NavigableSet<byte[]> columns, <strong class="jxr_keyword">long</strong> oldestUnexpiredTS, <strong class="jxr_keyword">long</strong> now) <strong class="jxr_keyword">throws</strong> IOException { +<a class="jxr_linenumber" name="256" href="#256">256</a> <strong class="jxr_keyword">this</strong>(scan, scanInfo, columns, ScanType.USER_SCAN, +<a class="jxr_linenumber" name="257" href="#257">257</a> Long.MAX_VALUE, <em class="jxr_comment">/*<em class="jxr_comment"> max Readpoint to track versions */</em></em> +<a class="jxr_linenumber" name="258" href="#258">258</a> HConstants.LATEST_TIMESTAMP, oldestUnexpiredTS, now, <strong class="jxr_keyword">null</strong>); +<a class="jxr_linenumber" name="259" href="#259">259</a> } +<a class="jxr_linenumber" name="260" href="#260">260</a> +<a class="jxr_linenumber" name="261" href="#261">261</a> <em class="jxr_javadoccomment">/**</em> +<a class="jxr_linenumber" name="262" href="#262">262</a> <em class="jxr_javadoccomment"> *</em> +<a class="jxr_linenumber" name="263" href="#263">263</a> <em class="jxr_javadoccomment"> * @return whether there is an null column in the query</em> +<a class="jxr_linenumber" name="264" href="#264">264</a> <em class="jxr_javadoccomment"> */</em> +<a class="jxr_linenumber" name="265" href="#265">265</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> hasNullColumnInQuery() { +<a class="jxr_linenumber" name="266" href="#266">266</a> <strong class="jxr_keyword">return</strong> hasNullColumn; +<a class="jxr_linenumber" name="267" href="#267">267</a> } +<a class="jxr_linenumber" name="268" href="#268">268</a> +<a class="jxr_linenumber" name="269" href="#269">269</a> <em class="jxr_javadoccomment">/**</em> +<a class="jxr_linenumber" name="270" href="#270">270</a> <em class="jxr_javadoccomment"> * Determines if the caller should do one of several things:</em> +<a class="jxr_linenumber" name="271" href="#271">271</a> <em class="jxr_javadoccomment"> * - seek/skip to the next row (MatchCode.SEEK_NEXT_ROW)</em> +<a class="jxr_linenumber" name="272" href="#272">272</a> <em class="jxr_javadoccomment"> * - seek/skip to the next column (MatchCode.SEEK_NEXT_COL)</em> +<a class="jxr_linenumber" name="273" href="#273">273</a> <em class="jxr_javadoccomment"> * - include the current KeyValue (MatchCode.INCLUDE)</em> +<a class="jxr_linenumber" name="274" href="#274">274</a> <em class="jxr_javadoccomment"> * - ignore the current KeyValue (MatchCode.SKIP)</em> +<a class="jxr_linenumber" name="275" href="#275">275</a> <em class="jxr_javadoccomment"> * - got to the next row (MatchCode.DONE)</em> +<a class="jxr_linenumber" name="276" href="#276">276</a> <em class="jxr_javadoccomment"> *</em> +<a class="jxr_linenumber" name="277" href="#277">277</a> <em class="jxr_javadoccomment"> * @param cell KeyValue to check</em> +<a class="jxr_linenumber" name="278" href="#278">278</a> <em class="jxr_javadoccomment"> * @return The match code instance.</em> +<a class="jxr_linenumber" name="279" href="#279">279</a> <em class="jxr_javadoccomment"> * @throws IOException in case there is an internal consistency problem</em> +<a class="jxr_linenumber" name="280" href="#280">280</a> <em class="jxr_javadoccomment"> * caused by a data corruption.</em> +<a class="jxr_linenumber" name="281" href="#281">281</a> <em class="jxr_javadoccomment"> */</em> +<a class="jxr_linenumber" name="282" href="#282">282</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">MatchCode</a> match(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) <strong class="jxr_keyword">throws</strong> IOException { +<a class="jxr_linenumber" name="283" href="#283">283</a> <strong class="jxr_keyword">if</strong> (filter != <strong class="jxr_keyword">null</strong> && filter.filterAllRemaining()) { +<a class="jxr_linenumber" name="284" href="#284">284</a> <strong class="jxr_keyword">return</strong> MatchCode.DONE_SCAN; +<a class="jxr_linenumber" name="285" href="#285">285</a> } +<a class="jxr_linenumber" name="286" href="#286">286</a> <strong class="jxr_keyword">int</strong> ret = <strong class="jxr_keyword">this</strong>.rowComparator.compareRows(curCell, cell); +<a class="jxr_linenumber" name="287" href="#287">287</a> <strong class="jxr_keyword">if</strong> (!<strong class="jxr_keyword">this</strong>.isReversed) { +<a class="jxr_linenumber" name="288" href="#288">288</a> <strong class="jxr_keyword">if</strong> (ret <= -1) { +<a class="jxr_linenumber" name="289" href="#289">289</a> <strong class="jxr_keyword">return</strong> MatchCode.DONE; +<a class="jxr_linenumber" name="290" href="#290">290</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ret >= 1) { +<a class="jxr_linenumber" name="291" href="#291">291</a> <em class="jxr_comment">// could optimize this, if necessary?</em> +<a class="jxr_linenumber" name="292" href="#292">292</a> <em class="jxr_comment">// Could also be called SEEK_TO_CURRENT_ROW, but this</em> +<a class="jxr_linenumber" name="293" href="#293">293</a> <em class="jxr_comment">// should be rare/never happens.</em> +<a class="jxr_linenumber" name="294" href="#294">294</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; +<a class="jxr_linenumber" name="295" href="#295">295</a> } +<a class="jxr_linenumber" name="296" href="#296">296</a> } <strong class="jxr_keyword">else</strong> { +<a class="jxr_linenumber" name="297" href="#297">297</a> <strong class="jxr_keyword">if</strong> (ret <= -1) { +<a class="jxr_linenumber" name="298" href="#298">298</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; +<a class="jxr_linenumber" name="299" href="#299">299</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ret >= 1) { +<a class="jxr_linenumber" name="300" href="#300">300</a> <strong class="jxr_keyword">return</strong> MatchCode.DONE; +<a class="jxr_linenumber" name="301" href="#301">301</a> } +<a class="jxr_linenumber" name="302" href="#302">302</a> } +<a class="jxr_linenumber" name="303" href="#303">303</a> +<a class="jxr_linenumber" name="304" href="#304">304</a> <em class="jxr_comment">// optimize case.</em> +<a class="jxr_linenumber" name="305" href="#305">305</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.stickyNextRow) +<a class="jxr_linenumber" name="306" href="#306">306</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; <a class="jxr_linenumber" name="307" href="#307">307</a> -<a class="jxr_linenumber" name="308" href="#308">308</a> <strong class="jxr_keyword">long</strong> timestamp = cell.getTimestamp(); -<a class="jxr_linenumber" name="309" href="#309">309</a> <em class="jxr_comment">// check for early out based on timestamp alone</em> -<a class="jxr_linenumber" name="310" href="#310">310</a> <strong class="jxr_keyword">if</strong> (columns.isDone(timestamp)) { -<a class="jxr_linenumber" name="311" href="#311">311</a> <strong class="jxr_keyword">return</strong> columns.getNextRowOrNextColumn(cell); -<a class="jxr_linenumber" name="312" href="#312">312</a> } -<a class="jxr_linenumber" name="313" href="#313">313</a> <em class="jxr_comment">// check if the cell is expired by cell TTL</em> -<a class="jxr_linenumber" name="314" href="#314">314</a> <strong class="jxr_keyword">if</strong> (HStore.isCellTTLExpired(cell, <strong class="jxr_keyword">this</strong>.oldestUnexpiredTS, <strong class="jxr_keyword">this</strong>.now)) { -<a class="jxr_linenumber" name="315" href="#315">315</a> <strong class="jxr_keyword">return</strong> MatchCode.SKIP; -<a class="jxr_linenumber" name="316" href="#316">316</a> } -<a class="jxr_linenumber" name="317" href="#317">317</a> -<a class="jxr_linenumber" name="318" href="#318">318</a> <em class="jxr_comment">/*</em> -<a class="jxr_linenumber" name="319" href="#319">319</a> <em class="jxr_comment"> * The delete logic is pretty complicated now.</em> -<a class="jxr_linenumber" name="320" href="#320">320</a> <em class="jxr_comment"> * This is corroborated by the following:</em> -<a class="jxr_linenumber" name="321" href="#321">321</a> <em class="jxr_comment"> * 1. The store might be instructed to keep deleted rows around.</em> -<a class="jxr_linenumber" name="322" href="#322">322</a> <em class="jxr_comment"> * 2. A scan can optionally see past a delete marker now.</em> -<a class="jxr_linenumber" name="323" href="#323">323</a> <em class="jxr_comment"> * 3. If deleted rows are kept, we have to find out when we can</em> -<a class="jxr_linenumber" name="324" href="#324">324</a> <em class="jxr_comment"> * remove the delete markers.</em> -<a class="jxr_linenumber" name="325" href="#325">325</a> <em class="jxr_comment"> * 4. Family delete markers are always first (regardless of their TS)</em> -<a class="jxr_linenumber" name="326" href="#326">326</a> <em class="jxr_comment"> * 5. Delete markers should not be counted as version</em> -<a class="jxr_linenumber" name="327" href="#327">327</a> <em class="jxr_comment"> * 6. Delete markers affect puts of the *same* TS</em> -<a class="jxr_linenumber" name="328" href="#328">328</a> <em class="jxr_comment"> * 7. Delete marker need to be version counted together with puts</em> -<a class="jxr_linenumber" name="329" href="#329">329</a> <em class="jxr_comment"> * they affect</em> -<a class="jxr_linenumber" name="330" href="#330">330</a> <em class="jxr_comment"> */</em> -<a class="jxr_linenumber" name="331" href="#331">331</a> byte typeByte = cell.getTypeByte(); -<a class="jxr_linenumber" name="332" href="#332">332</a> <strong class="jxr_keyword">long</strong> mvccVersion = cell.getSequenceId(); -<a class="jxr_linenumber" name="333" href="#333">333</a> <strong class="jxr_keyword">if</strong> (CellUtil.isDelete(cell)) { -<a class="jxr_linenumber" name="334" href="#334">334</a> <strong class="jxr_keyword">if</strong> (keepDeletedCells == KeepDeletedCells.FALSE -<a class="jxr_linenumber" name="335" href="#335">335</a> || (keepDeletedCells == KeepDeletedCells.TTL && timestamp < ttl)) { -<a class="jxr_linenumber" name="336" href="#336">336</a> <em class="jxr_comment">// first ignore delete markers if the scanner can do so, and the</em> -<a class="jxr_linenumber" name="337" href="#337">337</a> <em class="jxr_comment">// range does not include the marker</em> -<a class="jxr_linenumber" name="338" href="#338">338</a> <em class="jxr_comment">//</em> -<a class="jxr_linenumber" name="339" href="#339">339</a> <em class="jxr_comment">// during flushes and compactions also ignore delete markers newer</em> -<a class="jxr_linenumber" name="340" href="#340">340</a> <em class="jxr_comment">// than the readpoint of any open scanner, this prevents deleted</em> -<a class="jxr_linenumber" name="341" href="#341">341</a> <em class="jxr_comment">// rows that could still be seen by a scanner from being collected</em> -<a class="jxr_linenumber" name="342" href="#342">342</a> <strong class="jxr_keyword">boolean</strong> includeDeleteMarker = seePastDeleteMarkers ? -<a class="jxr_linenumber" name="343" href="#343">343</a> tr.withinTimeRange(timestamp) : -<a class="jxr_linenumber" name="344" href="#344">344</a> tr.withinOrAfterTimeRange(timestamp); -<a class="jxr_linenumber" name="345" href="#345">345</a> <strong class="jxr_keyword">if</strong> (includeDeleteMarker -<a class="jxr_linenumber" name="346" href="#346">346</a> && mvccVersion <= maxReadPointToTrackVersions) { -<a class="jxr_linenumber" name="347" href="#347">347</a> <strong class="jxr_keyword">this</strong>.deletes.add(cell); -<a class="jxr_linenumber" name="348" href="#348">348</a> } -<a class="jxr_linenumber" name="349" href="#349">349</a> <em class="jxr_comment">// Can't early out now, because DelFam come before any other keys</em> -<a class="jxr_linenumber" name="350" href="#350">350</a> } -<a class="jxr_linenumber" name="351" href="#351">351</a> -<a class="jxr_linenumber" name="352" href="#352">352</a> <strong class="jxr_keyword">if</strong> ((!isUserScan) -<a class="jxr_linenumber" name="353" href="#353">353</a> && timeToPurgeDeletes > 0 -<a class="jxr_linenumber" name="354" href="#354">354</a> && (EnvironmentEdgeManager.currentTime() - timestamp) -<a class="jxr_linenumber" name="355" href="#355">355</a> <= timeToPurgeDeletes) { -<a class="jxr_linenumber" name="356" href="#356">356</a> <strong class="jxr_keyword">return</strong> MatchCode.INCLUDE; -<a class="jxr_linenumber" name="357" href="#357">357</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (retainDeletesInOutput || mvccVersion > maxReadPointToTrackVersions) { -<a class="jxr_linenumber" name="358" href="#358">358</a> <em class="jxr_comment">// always include or it is not time yet to check whether it is OK</em> -<a class="jxr_linenumber" name="359" href="#359">359</a> <em class="jxr_comment">// to purge deltes or not</em> -<a class="jxr_linenumber" name="360" href="#360">360</a> <strong class="jxr_keyword">if</strong> (!isUserScan) { -<a class="jxr_linenumber" name="361" href="#361">361</a> <em class="jxr_comment">// if this is not a user scan (compaction), we can filter this deletemarker right here</em> -<a class="jxr_linenumber" name="362" href="#362">362</a> <em class="jxr_comment">// otherwise (i.e. a "raw" scan) we fall through to normal version and timerange checking</em> -<a class="jxr_linenumber" name="363" href="#363">363</a> <strong class="jxr_keyword">return</strong> MatchCode.INCLUDE; -<a class="jxr_linenumber" name="364" href="#364">364</a> } -<a class="jxr_linenumber" name="365" href="#365">365</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (keepDeletedCells == KeepDeletedCells.TRUE -<a class="jxr_linenumber" name="366" href="#366">366</a> || (keepDeletedCells == KeepDeletedCells.TTL && timestamp >= ttl)) { -<a class="jxr_linenumber" name="367" href="#367">367</a> <strong class="jxr_keyword">if</strong> (timestamp < earliestPutTs) { -<a class="jxr_linenumber" name="368" href="#368">368</a> <em class="jxr_comment">// keeping delete rows, but there are no puts older than</em> -<a class="jxr_linenumber" name="369" href="#369">369</a> <em class="jxr_comment">// this delete in the store files.</em> -<a class="jxr_linenumber" name="370" href="#370">370</a> <strong class="jxr_keyword">return</strong> columns.getNextRowOrNextColumn(cell); -<a class="jxr_linenumber" name="371" href="#371">371</a> } -<a class="jxr_linenumber" name="372" href="#372">372</a> <em class="jxr_comment">// else: fall through and do version counting on the</em> -<a class="jxr_linenumber" name="373" href="#373">373</a> <em class="jxr_comment">// delete markers</em> -<a class="jxr_linenumber" name="374" href="#374">374</a> } <strong class="jxr_keyword">else</strong> { -<a class="jxr_linenumber" name="375" href="#375">375</a> <strong class="jxr_keyword">return</strong> MatchCode.SKIP; -<a class="jxr_linenumber" name="376" href="#376">376</a> } -<a class="jxr_linenumber" name="377" href="#377">377</a> <em class="jxr_comment">// note the following next else if...</em> -<a class="jxr_linenumber" name="378" href="#378">378</a> <em class="jxr_comment">// delete marker are not subject to other delete markers</em> -<a class="jxr_linenumber" name="379" href="#379">379</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (!<strong class="jxr_keyword">this</strong>.deletes.isEmpty()) { -<a class="jxr_linenumber" name="380" href="#380">380</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/DeleteTracker.html">DeleteResult</a> deleteResult = deletes.isDeleted(cell); -<a class="jxr_linenumber" name="381" href="#381">381</a> <strong class="jxr_keyword">switch</strong> (deleteResult) { -<a class="jxr_linenumber" name="382" href="#382">382</a> <strong class="jxr_keyword">case</strong> FAMILY_DELETED: -<a class="jxr_linenumber" name="383" href="#383">383</a> <strong class="jxr_keyword">case</strong> COLUMN_DELETED: -<a class="jxr_linenumber" name="384" href="#384">384</a> <strong class="jxr_keyword">return</strong> columns.getNextRowOrNextColumn(cell); -<a class="jxr_linenumber" name="385" href="#385">385</a> <strong class="jxr_keyword">case</strong> VERSION_DELETED: -<a class="jxr_linenumber" name="386" href="#386">386</a> <strong class="jxr_keyword">case</strong> FAMILY_VERSION_DELETED: -<a class="jxr_linenumber" name="387" href="#387">387</a> <strong class="jxr_keyword">return</strong> MatchCode.SKIP; -<a class="jxr_linenumber" name="388" href="#388">388</a> <strong class="jxr_keyword">case</strong> NOT_DELETED: -<a class="jxr_linenumber" name="389" href="#389">389</a> <strong class="jxr_keyword">break</strong>; -<a class="jxr_linenumber" name="390" href="#390">390</a> <strong class="jxr_keyword">default</strong>: -<a class="jxr_linenumber" name="391" href="#391">391</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeException(<span class="jxr_string">"UNEXPECTED"</span>); -<a class="jxr_linenumber" name="392" href="#392">392</a> } -<a class="jxr_linenumber" name="393" href="#393">393</a> } -<a class="jxr_linenumber" name="394" href="#394">394</a> -<a class="jxr_linenumber" name="395" href="#395">395</a> <strong class="jxr_keyword">int</strong> timestampComparison = tr.compare(timestamp); -<a class="jxr_linenumber" name="396" href="#396">396</a> <strong class="jxr_keyword">if</strong> (timestampComparison >= 1) { -<a class="jxr_linenumber" name="397" href="#397">397</a> <strong class="jxr_keyword">return</strong> MatchCode.SKIP; -<a class="jxr_linenumber" name="398" href="#398">398</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (timestampComparison <= -1) { -<a class="jxr_linenumber" name="399" href="#399">399</a> <strong class="jxr_keyword">return</strong> columns.getNextRowOrNextColumn(cell); -<a class="jxr_linenumber" name="400" href="#400">400</a> } -<a class="jxr_linenumber" name="401" href="#401">401</a> -<a class="jxr_linenumber" name="402" href="#402">402</a> <em class="jxr_comment">// STEP 1: Check if the column is part of the requested columns</em> -<a class="jxr_linenumber" name="403" href="#403">403</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">MatchCode</a> colChecker = columns.checkColumn(cell, typeByte); -<a class="jxr_linenumber" name="404" href="#404">404</a> <strong class="jxr_keyword">if</strong> (colChecker == MatchCode.INCLUDE) { -<a class="jxr_linenumber" name="405" href="#405">405</a> <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html">ReturnCode</a> filterResponse = ReturnCode.SKIP; -<a class="jxr_linenumber" name="406" href="#406">406</a> <em class="jxr_comment">// STEP 2: Yes, the column is part of the requested columns. Check if filter is present</em> -<a class="jxr_linenumber" name="407" href="#407">407</a> <strong class="jxr_keyword">if</strong> (filter != <strong class="jxr_keyword">null</strong>) { -<a class="jxr_linenumber" name="408" href="#408">408</a> <em class="jxr_comment">// STEP 3: Filter the key value and return if it filters out</em> -<a class="jxr_linenumber" name="409" href="#409">409</a> filterResponse = filter.filterKeyValue(cell); -<a class="jxr_linenumber" name="410" href="#410">410</a> <strong class="jxr_keyword">switch</strong> (filterResponse) { -<a class="jxr_linenumber" name="411" href="#411">411</a> <strong class="jxr_keyword">case</strong> SKIP: -<a class="jxr_linenumber" name="412" href="#412">412</a> <strong class="jxr_keyword">return</strong> MatchCode.SKIP; -<a class="jxr_linenumber" name="413" href="#413">413</a> <strong class="jxr_keyword">case</strong> NEXT_COL: -<a class="jxr_linenumber" name="414" href="#414">414</a> <strong class="jxr_keyword">return</strong> columns.getNextRowOrNextColumn(cell); -<a class="jxr_linenumber" name="415" href="#415">415</a> <strong class="jxr_keyword">case</strong> NEXT_ROW: -<a class="jxr_linenumber" name="416" href="#416">416</a> stickyNextRow = <strong class="jxr_keyword">true</strong>; -<a class="jxr_linenumber" name="417" href="#417">417</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; -<a class="jxr_linenumber" name="418" href="#418">418</a> <strong class="jxr_keyword">case</strong> SEEK_NEXT_USING_HINT: -<a class="jxr_linenumber" name="419" href="#419">419</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_USING_HINT; -<a class="jxr_linenumber" name="420" href="#420">420</a> <strong class="jxr_keyword">default</strong>: -<a class="jxr_linenumber" name="421" href="#421">421</a> <em class="jxr_comment">//It means it is either include or include and seek next</em> -<a class="jxr_linenumber" name="422" href="#422">422</a> <strong class="jxr_keyword">break</strong>; -<a class="jxr_linenumber" name="423" href="#423">423</a> } -<a class="jxr_linenumber" name="424" href="#424">424</a> } -<a class="jxr_linenumber" name="425" href="#425">425</a> <em class="jxr_comment">/*</em> -<a class="jxr_linenumber" name="426" href="#426">426</a> <em class="jxr_comment"> * STEP 4: Reaching this step means the column is part of the requested columns and either</em> -<a class="jxr_linenumber" name="427" href="#427">427</a> <em class="jxr_comment"> * the filter is null or the filter has returned INCLUDE or INCLUDE_AND_NEXT_COL response.</em> -<a class="jxr_linenumber" name="428" href="#428">428</a> <em class="jxr_comment"> * Now check the number of versions needed. This method call returns SKIP, INCLUDE,</em> -<a class="jxr_linenumber" name="429" href="#429">429</a> <em class="jxr_comment"> * INCLUDE_AND_SEEK_NEXT_ROW, INCLUDE_AND_SEEK_NEXT_COL.</em> -<a class="jxr_linenumber" name="430" href="#430">430</a> <em class="jxr_comment"> *</em> -<a class="jxr_linenumber" name="431" href="#431">431</a> <em class="jxr_comment"> * FilterResponse ColumnChecker Desired behavior</em> -<a class="jxr_linenumber" name="432" href="#432">432</a> <em class="jxr_comment"> * INCLUDE SKIP row has already been included, SKIP.</em> -<a class="jxr_linenumber" name="433" href="#433">433</a> <em class="jxr_comment"> * INCLUDE INCLUDE INCLUDE</em> -<a class="jxr_linenumber" name="434" href="#434">434</a> <em class="jxr_comment"> * INCLUDE INCLUDE_AND_SEEK_NEXT_COL INCLUDE_AND_SEEK_NEXT_COL</em> -<a class="jxr_linenumber" name="435" href="#435">435</a> <em class="jxr_comment"> * INCLUDE INCLUDE_AND_SEEK_NEXT_ROW INCLUDE_AND_SEEK_NEXT_ROW</em> -<a class="jxr_linenumber" name="436" href="#436">436</a> <em class="jxr_comment"> * INCLUDE_AND_SEEK_NEXT_COL SKIP row has already been included, SKIP.</em> -<a class="jxr_linenumber" name="437" href="#437">437</a> <em class="jxr_comment"> * INCLUDE_AND_SEEK_NEXT_COL INCLUDE INCLUDE_AND_SEEK_NEXT_COL</em> -<a class="jxr_linenumber" name="438" href="#438">438</a> <em class="jxr_comment"> * INCLUDE_AND_SEEK_NEXT_COL INCLUDE_AND_SEEK_NEXT_COL INCLUDE_AND_SEEK_NEXT_COL</em> -<a class="jxr_linenumber" name="439" href="#439">439</a> <em class="jxr_comment"> * INCLUDE_AND_SEEK_NEXT_COL INCLUDE_AND_SEEK_NEXT_ROW INCLUDE_AND_SEEK_NEXT_ROW</em> -<a class="jxr_linenumber" name="440" href="#440">440</a> <em class="jxr_comment"> *</em> -<a class="jxr_linenumber" name="441" href="#441">441</a> <em class="jxr_comment"> * In all the above scenarios, we return the column checker return value except for</em> -<a class="jxr_linenumber" name="442" href="#442">442</a> <em class="jxr_comment"> * FilterResponse (INCLUDE_AND_SEEK_NEXT_COL) and ColumnChecker(INCLUDE)</em> -<a class="jxr_linenumber" name="443" href="#443">443</a> <em class="jxr_comment"> */</em> -<a class="jxr_linenumber" name="444" href="#444">444</a> colChecker = columns.checkVersions(cell, timestamp, typeByte, -<a class="jxr_linenumber" name="445" href="#445">445</a> mvccVersion > maxReadPointToTrackVersions); -<a class="jxr_linenumber" name="446" href="#446">446</a> <em class="jxr_comment">//Optimize with stickyNextRow</em> -<a class="jxr_linenumber" name="447" href="#447">447</a> <strong class="jxr_keyword">boolean</strong> seekNextRowFromEssential = filterResponse == ReturnCode.INCLUDE_AND_SEEK_NEXT_ROW && -<a class="jxr_linenumber" name="448" href="#448">448</a> filter.isFamilyEssential(cell.getFamilyArray()); -<a class="jxr_linenumber" name="449" href="#449">449</a> <strong class="jxr_keyword">if</strong> (colChecker == MatchCode.INCLUDE_AND_SEEK_NEXT_ROW || seekNextRowFromEssential) { -<a class="jxr_linenumber" name="450" href="#450">450</a> stickyNextRow = <strong class="jxr_keyword">true</strong>; -<a class="jxr_linenumber" name="451" href="#451">451</a> } -<a class="jxr_linenumber" name="452" href="#452">452</a> <strong class="jxr_keyword">if</strong> (filterResponse == ReturnCode.INCLUDE_AND_SEEK_NEXT_ROW) { -<a class="jxr_linenumber" name="453" href="#453">453</a> <strong class="jxr_keyword">if</strong> (colChecker != MatchCode.SKIP) { -<a class="jxr_linenumber" name="454" href="#454">454</a> <strong class="jxr_keyword">return</strong> MatchCode.INCLUDE_AND_SEEK_NEXT_ROW; -<a class="jxr_linenumber" name="455" href="#455">455</a> } -<a class="jxr_linenumber" name="456" href="#456">456</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; -<a class="jxr_linenumber" name="457" href="#457">457</a> } -<a class="jxr_linenumber" name="458" href="#458">458</a> <strong class="jxr_keyword">return</strong> (filterResponse == ReturnCode.INCLUDE_AND_NEXT_COL && -<a class="jxr_linenumber" name="459" href="#459">459</a> colChecker == MatchCode.INCLUDE) ? MatchCode.INCLUDE_AND_SEEK_NEXT_COL -<a class="jxr_linenumber" name="460" href="#460">460</a> : colChecker; -<a class="jxr_linenumber" name="461" href="#461">461</a> } -<a class="jxr_linenumber" name="462" href="#462">462</a> stickyNextRow = (colChecker == MatchCode.SEEK_NEXT_ROW) ? <strong class="jxr_keyword">true</strong> -<a class="jxr_linenumber" name="463" href="#463">463</a> : stickyNextRow; -<a class="jxr_linenumber" name="464" href="#464">464</a> <strong class="jxr_keyword">return</strong> colChecker; -<a class="jxr_linenumber" name="465" href="#465">465</a> } -<a class="jxr_linenumber" name="466" href="#466">466</a> -<a class="jxr_linenumber" name="467" href="#467">467</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Handle partial-drop-deletes. As we match keys in order, when we have a range from which</em> -<a class="jxr_linenumber" name="468" href="#468">468</a> <em class="jxr_javadoccomment"> * we can drop deletes, we can set retainDeletesInOutput to false for the duration of this</em> -<a class="jxr_linenumber" name="469" href="#469">469</a> <em class="jxr_javadoccomment"> * range only, and maintain consistency. */</em> -<a class="jxr_linenumber" name="470" href="#470">470</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> checkPartialDropDeleteRange(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> curCell) { -<a class="jxr_linenumber" name="471" href="#471">471</a> <em class="jxr_comment">// If partial-drop-deletes are used, initially, dropDeletesFromRow and dropDeletesToRow</em> -<a class="jxr_linenumber" name="472" href="#472">472</a> <em class="jxr_comment">// are both set, and the matcher is set to retain deletes. We assume ordered keys. When</em> -<a class="jxr_linenumber" name="473" href="#473">473</a> <em class="jxr_comment">// dropDeletesFromRow is leq current kv, we start dropping deletes and reset</em> -<a class="jxr_linenumber" name="474" href="#474">474</a> <em class="jxr_comment">// dropDeletesFromRow; thus the 2nd "if" starts to apply.</em> -<a class="jxr_linenumber" name="475" href="#475">475</a> <strong class="jxr_keyword">if</strong> ((dropDeletesFromRow != <strong class="jxr_keyword">null</strong>) -<a class="jxr_linenumber" name="476" href="#476">476</a> && (Arrays.equals(dropDeletesFromRow, HConstants.EMPTY_START_ROW) || -<a class="jxr_linenumber" name="477" href="#477">477</a> (CellComparator.COMPARATOR.compareRows(curCell, dropDeletesFromRow, 0, -<a class="jxr_linenumber" name="478" href="#478">478</a> dropDeletesFromRow.length) >= 0))) { -<a class="jxr_linenumber" name="479" href="#479">479</a> retainDeletesInOutput = false; -<a class="jxr_linenumber" name="480" href="#480">480</a> dropDeletesFromRow = <strong class="jxr_keyword">null</strong>; -<a class="jxr_linenumber" name="481" href="#481">481</a> } -<a class="jxr_linenumber" name="482" href="#482">482</a> <em class="jxr_comment">// If dropDeletesFromRow is null and dropDeletesToRow is set, we are inside the partial-</em> -<a class="jxr_linenumber" name="483" href="#483">483</a> <em class="jxr_comment">// drop-deletes range. When dropDeletesToRow is leq current kv, we stop dropping deletes,</em> -<a class="jxr_linenumber" name="484" href="#484">484</a> <em class="jxr_comment">// and reset dropDeletesToRow so that we don't do any more compares.</em> -<a class="jxr_linenumber" name="485" href="#485">485</a> <strong class="jxr_keyword">if</strong> ((dropDeletesFromRow == <strong class="jxr_keyword">null</strong>) -<a class="jxr_linenumber" name="486" href="#486">486</a> && (dropDeletesToRow != <strong class="jxr_keyword">null</strong>) -<a class="jxr_linenumber" name="487" href="#487">487</a> && !Arrays.equals(dropDeletesToRow, HConstants.EMPTY_END_ROW) -<a class="jxr_linenumber" name="488" href="#488">488</a> && (CellComparator.COMPARATOR -<a class="jxr_linenumber" name="489" href="#489">489</a> .compareRows(curCell, dropDeletesToRow, 0, dropDeletesToRow.length) >= 0)) { -<a class="jxr_linenumber" name="490" href="#490">490</a> retainDeletesInOutput = <strong class="jxr_keyword">true</strong>; -<a class="jxr_linenumber" name="491" href="#491">491</a> dropDeletesToRow = <strong class="jxr_keyword">null</strong>; -<a class="jxr_linenumber" name="492" href="#492">492</a> } -<a class="jxr_linenumber" name="493" href="#493">493</a> } -<a class="jxr_linenumber" name="494" href="#494">494</a> -<a class="jxr_linenumber" name="495" href="#495">495</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> moreRowsMayExistAfter(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> kv) { -<a class="jxr_linenumber" name="496" href="#496">496</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.isReversed) { -<a class="jxr_linenumber" name="497" href="#497">497</a> <strong class="jxr_keyword">if</strong> (rowComparator.compareRows(kv, stopRow, 0, stopRow.length) <= 0) { -<a class="jxr_linenumber" name="498" href="#498">498</a> <strong class="jxr_keyword">return</strong> false; -<a class="jxr_linenumber" name="499" href="#499">499</a> } <strong class="jxr_keyword">else</strong> { -<a class="jxr_linenumber" name="500" href="#500">500</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; -<a class="jxr_linenumber" name="501" href="#501">501</a> } -<a class="jxr_linenumber" name="502" href="#502">502</a> } -<a class="jxr_linenumber" name="503" href="#503">503</a> <strong class="jxr_keyword">if</strong> (!Bytes.equals(stopRow , HConstants.EMPTY_END_ROW) && -<a class="jxr_linenumber" name="504" href="#504">504</a> rowComparator.compareRows(kv, stopRow, 0, stopRow.length) >= 0) { -<a class="jxr_linenumber" name="505" href="#505">505</a> <em class="jxr_comment">// KV >= STOPROW</em> -<a class="jxr_linenumber" name="506" href="#506">506</a> <em class="jxr_comment">// then NO there is nothing left.</em> -<a class="jxr_linenumber" name="507" href="#507">507</a> <strong class="jxr_keyword">return</strong> false; -<a class="jxr_linenumber" name="508" href="#508">508</a> } <strong class="jxr_keyword">else</strong> { -<a class="jxr_linenumber" name="509" href="#509">509</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; -<a class="jxr_linenumber" name="510" href="#510">510</a> } -<a class="jxr_linenumber" name="511" href="#511">511</a> } -<a class="jxr_linenumber" name="512" href="#512">512</a> -<a class="jxr_linenumber" name="513" href="#513">513</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="514" href="#514">514</a> <em class="jxr_javadoccomment"> * Set the row when there is change in row</em> -<a class="jxr_linenumber" name="515" href="#515">515</a> <em class="jxr_javadoccomment"> * @param curCell</em> -<a class="jxr_linenumber" name="516" href="#516">516</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="517" href="#517">517</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setToNewRow(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> curCell) { -<a class="jxr_linenumber" name="518" href="#518">518</a> checkPartialDropDeleteRange(curCell); -<a class="jxr_linenumber" name="519" href="#519">519</a> <strong class="jxr_keyword">this</strong>.curCell = curCell; -<a class="jxr_linenumber" name="520" href="#520">520</a> reset(); -<a class="jxr_linenumber" name="521" href="#521">521</a> } -<a class="jxr_linenumber" name="522" href="#522">522</a> -<a class="jxr_linenumber" name="523" href="#523">523</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> reset() { -<a class="jxr_linenumber" name="524" href="#524">524</a> <strong class="jxr_keyword">this</strong>.deletes.reset(); -<a class="jxr_linenumber" name="525" href="#525">525</a> <strong class="jxr_keyword">this</strong>.columns.reset(); -<a class="jxr_linenumber" name="526" href="#526">526</a> -<a class="jxr_linenumber" name="527" href="#527">527</a> stickyNextRow = false; -<a class="jxr_linenumber" name="528" href="#528">528</a> } -<a class="jxr_linenumber" name="529" href="#529">529</a> -<a class="jxr_linenumber" name="530" href="#530">530</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="531" href="#531">531</a> <em class="jxr_javadoccomment"> *</em> -<a class="jxr_linenumber" name="532" href="#532">532</a> <em class="jxr_javadoccomment"> * @return the start key</em> -<a class="jxr_linenumber" name="533" href="#533">533</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="534" href="#534">534</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> getStartKey() { -<a class="jxr_linenumber" name="535" href="#535">535</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.startKey; -<a class="jxr_linenumber" name="536" href="#536">536</a> } -<a class="jxr_linenumber" name="537" href="#537">537</a> -<a class="jxr_linenumber" name="538" href="#538">538</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="539" href="#539">539</a> <em class="jxr_javadoccomment"> *</em> -<a class="jxr_linenumber" name="540" href="#540">540</a> <em class="jxr_javadoccomment"> * @return the Filter</em> -<a class="jxr_linenumber" name="541" href="#541">541</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="542" href="#542">542</a> <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html">Filter</a> getFilter() { -<a class="jxr_linenumber" name="543" href="#543">543</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.filter; -<a class="jxr_linenumber" name="544" href="#544">544</a> } -<a class="jxr_linenumber" name="545" href="#545">545</a> -<a class="jxr_linenumber" name="546" href="#546">546</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> getNextKeyHint(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> kv) <strong class="jxr_keyword">throws</strong> IOException { -<a class="jxr_linenumber" name="547" href="#547">547</a> <strong class="jxr_keyword">if</strong> (filter == <strong class="jxr_keyword">null</strong>) { -<a class="jxr_linenumber" name="548" href="#548">548</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; -<a class="jxr_linenumber" name="549" href="#549">549</a> } <strong class="jxr_keyword">else</strong> { -<a class="jxr_linenumber" name="550" href="#550">550</a> <strong class="jxr_keyword">return</strong> filter.getNextCellHint(kv); -<a class="jxr_linenumber" name="551" href="#551">551</a> } -<a class="jxr_linenumber" name="552" href="#552">552</a> } -<a class="jxr_linenumber" name="553" href="#553">553</a> -<a class="jxr_linenumber" name="554" href="#554">554</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> getKeyForNextColumn(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> kv) { -<a class="jxr_linenumber" name="555" href="#555">555</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ColumnCount.html">ColumnCount</a> nextColumn = columns.getColumnHint(); -<a class="jxr_linenumber" name="556" href="#556">556</a> <strong class="jxr_keyword">if</strong> (nextColumn == <strong class="jxr_keyword">null</strong>) { -<a class="jxr_linenumber" name="557" href="#557">557</a> <strong class="jxr_keyword">return</strong> CellUtil.createLastOnRowCol(kv); -<a class="jxr_linenumber" name="558" href="#558">558</a> } <strong class="jxr_keyword">else</strong> { -<a class="jxr_linenumber" name="559" href="#559">559</a> <strong class="jxr_keyword">return</strong> CellUtil.createFirstOnRowCol(kv, nextColumn.getBuffer(), nextColumn.getOffset(), -<a class="jxr_linenumber" name="560" href="#560">560</a> nextColumn.getLength()); -<a class="jxr_linenumber" name="561" href="#561">561</a> } -<a class="jxr_linenumber" name="562" href="#562">562</a> } -<a class="jxr_linenumber" name="563" href="#563">563</a> -<a class="jxr_linenumber" name="564" href="#564">564</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> getKeyForNextRow(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> c) { -<a class="jxr_linenumber" name="565" href="#565">565</a> <strong class="jxr_keyword">return</strong> CellUtil.createLastOnRow(c); -<a class="jxr_linenumber" name="566" href="#566">566</a> } -<a class="jxr_linenumber" name="567" href="#567">567</a> -<a class="jxr_linenumber" name="568" href="#568">568</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="569" href="#569">569</a> <em class="jxr_javadoccomment"> * @param nextIndexed the key of the next entry in the block index (if any)</em> -<a class="jxr_linenumber" name="570" href="#570">570</a> <em class="jxr_javadoccomment"> * @param kv The Cell we're using to calculate the seek key</em> -<a class="jxr_linenumber" name="571" href="#571">571</a> <em class="jxr_javadoccomment"> * @return result of the compare between the indexed key and the key portion of the passed cell</em> -<a class="jxr_linenumber" name="572" href="#572">572</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="573" href="#573">573</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> compareKeyForNextRow(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> nextIndexed, <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> kv) { -<a class="jxr_linenumber" name="574" href="#574">574</a> <strong class="jxr_keyword">return</strong> rowComparator.compareKeyBasedOnColHint(nextIndexed, kv, 0, 0, <strong class="jxr_keyword">null</strong>, 0, 0, -<a class="jxr_linenumber" name="575" href="#575">575</a> HConstants.OLDEST_TIMESTAMP, Type.Minimum.getCode()); -<a class="jxr_linenumber" name="576" href="#576">576</a> } -<a class="jxr_linenumber" name="577" href="#577">577</a> -<a class="jxr_linenumber" name="578" href="#578">578</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="579" href="#579">579</a> <em class="jxr_javadoccomment"> * @param nextIndexed the key of the next entry in the block index (if any)</em> -<a class="jxr_linenumber" name="580" href="#580">580</a> <em class="jxr_javadoccomment"> * @param currentCell The Cell we're using to calculate the seek key</em> -<a class="jxr_linenumber" name="581" href="#581">581</a> <em class="jxr_javadoccomment"> * @return result of the compare between the indexed key and the key portion of the passed cell</em> -<a class="jxr_linenumber" name="582" href="#582">582</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="583" href="#583">583</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> compareKeyForNextColumn(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> nextIndexed, <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> currentCell) { -<a class="jxr_linenumber" name="584" href="#584">584</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ColumnCount.html">ColumnCount</a> nextColumn = columns.getColumnHint(); -<a class="jxr_linenumber" name="585" href="#585">585</a> <strong class="jxr_keyword">if</strong> (nextColumn == <strong class="jxr_keyword">null</strong>) { -<a class="jxr_linenumber" name="586" href="#586">586</a> <strong class="jxr_keyword">return</strong> rowComparator.compareKeyBasedOnColHint(nextIndexed, currentCell, 0, 0, <strong class="jxr_keyword">null</strong>, 0, 0, -<a class="jxr_linenumber" name="587" href="#587">587</a> HConstants.OLDEST_TIMESTAMP, Type.Minimum.getCode()); -<a class="jxr_linenumber" name="588" href="#588">588</a> } <strong class="jxr_keyword">else</strong> { -<a class="jxr_linenumber" name="589" href="#589">589</a> <strong class="jxr_keyword">return</strong> rowComparator.compareKeyBasedOnColHint(nextIndexed, currentCell, -<a class="jxr_linenumber" name="590" href="#590">590</a> currentCell.getFamilyOffset(), currentCell.getFamilyLength(), nextColumn.getBuffer(), -<a class="jxr_linenumber" name="591" href="#591">591</a> nextColumn.getOffset(), nextColumn.getLength(), HConstants.LATEST_TIMESTAMP, -<a class="jxr_linenumber" name="592" href="#592">592</a> Type.Maximum.getCode()); -<a class="jxr_linenumber" name="593" href="#593">593</a> } -<a class="jxr_linenumber" name="594" href="#594">594</a> } -<a class="jxr_linenumber" name="595" href="#595">595</a> -<a class="jxr_linenumber" name="596" href="#596">596</a> <em class="jxr_comment">//Used only for testing purposes</em> -<a class="jxr_linenumber" name="597" href="#597">597</a> <strong class="jxr_keyword">static</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">MatchCode</a> checkColumn(<a href="../../../../../org/apache/hadoop/hbase/regionserver/ColumnTracker.html">ColumnTracker</a> columnTracker, byte[] bytes, <strong class="jxr_keyword">int</strong> offset, -<a class="jxr_linenumber" name="598" href="#598">598</a> <strong class="jxr_keyword">int</strong> length, <strong class="jxr_keyword">long</strong> ttl, byte type, <strong class="jxr_keyword">boolean</strong> ignoreCount) <strong class="jxr_keyword">throws</strong> IOException { -<a class="jxr_linenumber" name="599" href="#599">599</a> <a href="../../../../../org/apache/hadoop/hbase/KeyValue.html">KeyValue</a> kv = KeyValueUtil.createFirstOnRow(HConstants.EMPTY_BYTE_ARRAY, 0, 0, -<a class="jxr_linenumber" name="600" href="#600">600</a> HConstants.EMPTY_BYTE_ARRAY, 0, 0, bytes, offset, length); -<a class="jxr_linenumber" name="601" href="#601">601</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">MatchCode</a> matchCode = columnTracker.checkColumn(kv, type); -<a class="jxr_linenumber" name="602" href="#602">602</a> <strong class="jxr_keyword">if</strong> (matchCode == MatchCode.INCLUDE) { -<a class="jxr_linenumber" name="603" href="#603">603</a> <strong class="jxr_keyword">return</strong> columnTracker.checkVersions(kv, ttl, type, ignoreCount); -<a class="jxr_linenumber" name="604" href="#604">604</a> } -<a class="jxr_linenumber" name="605" href="#605">605</a> <strong class="jxr_keyword">return</strong> matchCode; -<a class="jxr_linenumber" name="606" href="#606">606</a> } -<a class="jxr_linenumber" name="607" href="#607">607</a> -<a class="jxr_linenumber" name="608" href="#608">608</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="609" href="#609">609</a> <em class="jxr_javadoccomment"> * {@link #match} return codes. These instruct the scanner moving through</em> -<a class="jxr_linenumber" name="610" href="#610">610</a> <em class="jxr_javadoccomment"> * memstores and StoreFiles what to do with the current KeyValue.</em> -<a class="jxr_linenumber" name="611" href="#611">611</a> <em class="jxr_javadoccomment"> * <p></em> -<a class="jxr_linenumber" name="612" href="#612">612</a> <em class="jxr_javadoccomment"> * Additionally, this contains "early-out" language to tell the scanner to</em> -<a class="jxr_linenumber" name="613" href="#613">613</a> <em class="jxr_javadoccomment"> * move on to the next File (memstore or Storefile), or to return immediately.</em> -<a class="jxr_linenumber" name="614" href="#614">614</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="615" href="#615">615</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> enum <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.html">MatchCode</a> { -<a class="jxr_linenumber" name="616" href="#616">616</a> <em class="jxr_javadoccomment">/**</em> -<a class="jxr_linenumber" name="617" href="#617">617</a> <em class="jxr_javadoccomment"> * Include KeyValue in the returned result</em> -<a class="jxr_linenumber" name="618" href="#618">618</a> <em class="jxr_javadoccomment"> */</em> -<a class="jxr_linenumber" name="619" href="#619">619</a> INCLUDE, -<a class="jxr_linenumber" name="620" href="#620">620</a> +<a class="jxr_linenumber" name="308" href="#308">308</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.columns.done()) { +<a class="jxr_linenumber" name="309" href="#309">309</a> stickyNextRow = <strong class="jxr_keyword">true</strong>; +<a class="jxr_linenumber" name="310" href="#310">310</a> <strong class="jxr_keyword">return</strong> MatchCode.SEEK_NEXT_ROW; +<a class="jxr_linenumber" name="311" href="#311">311</a> } +<a class="jxr_linenumber" name="312" href="#312">312</a> +<a class="jxr_linenumber" name="313" href="#313">313</a> <strong class="jxr_keyword">long</strong> timestamp = cell.getTimestamp(); +<a class="jxr_linenumber" name="314" href="#314">314</a> <em class="jxr_comment">// check for early out based on timestamp alone</em> +<a class="jxr_linenumber" name="315" href="#315">315</a> <strong class="jxr_keyword">if</strong> (columns.isDone(timestamp)) { +<a class="jxr_linenumber" name="316" href="#316">316</a> <strong class="jxr_keyword">return</strong> columns.getNextRowOrNextColumn(cell); +<a class="jxr_linenumber" name="317" href="#317">317</a> } +<a class="jxr_linenumber" name="318" href="#318">318</a> <em class="jxr_comment">// check if the cell is expired by cell TTL</em> +<a class="jxr_linenumber" name="319" href="#319">319</a> <strong class="jxr_keyword">if</strong> (HStore.isCellTTLExpired(cell, <strong class="jxr_keyword">this</strong>.oldestUnexpiredTS, <strong class="jxr_keyword">this</strong>.now)) { +<a class="jxr_linenumber" name="320" href="#320">320</a> <strong class="jxr_keyword">return</strong> MatchCode.SKIP; +<a class="jxr_linenumber" name="321" href="#321">321</a> } +<a class="jxr_linenumber" name="322" href="#322">322</a> +<a class="jxr_linenumber" name="323" href="#323">323</a> <em class="jxr_comment">/*</em> +<a class="jxr_linenumber" name="324" href="#324">324</a> <em class="jxr_comment"> * The delete logic is pretty complicated now.</em> +<a class="jxr_linenumber" name="325" href="#325">325</a> <em class="jxr_comment"> * This is corroborated by the following:</em> +<a class="jxr_linenumber" name="326" href="#326">326</a> <em class="jxr_comment"> * 1. The store might be instructed to keep deleted rows around.</em> +<a class="jxr_linenumber" name="327" href="#327">327</a> <em class="jxr_comment"> * 2. A scan can optionally see past a delete marker now.</em> +<a class="jxr_linenumber" name="328" href="#328">328</a> <em class="jxr_comment"> * 3. If deleted rows are kept, we have to find out when we can</em> +<a class="jxr_linenumber" name="329" href="#329">329</a> <em class="jxr_comment"> * remove the delete markers.</em> +<a class="jxr_linenumber" name="330" href="#330">330</a> <em class="jxr_comment"> * 4. Family delete markers are always first (regardless of their TS)</em> +<a class="jxr_linenumber" name="331" href="#331">331</a> <em class="jxr_comment"> * 5. Delete markers should not be counted as version</em> +<a class="jxr_linenumber" name="332" href="#332">332</a> <em class="jxr_comment"> * 6. Delete markers affect puts of the *same* TS</em> +<a class="jxr_linenumber" name="333" href="#333">333</a> <em class="jxr_comment"> * 7. Delete marker need to be version counted together with puts</em> +<a class="jxr_linenumber" name="334" href="#334">334</a> <em class="jxr_comment"> * they affect</em> +<a class="jxr_linenumber" name="335" href="#335">335</a> <em class="jxr_comment"> */</em> +<a class="jxr_linenumber" name="336" href="#336">336</a> byte typeByte = cell.getTypeByte(); +<a class="jxr_linenumber" name="337" href="#337">337</a> <strong class="jxr_keyword">long</strong> mvccVersion = cell.getSequenceId(); +<a class="jxr_linenumber" name="338" href="#338">338</a> <strong class="jxr_keyword">if</strong> (CellUtil.isDelete(cell)) { +<a class="jxr_linenumber" name="339" href="#339">339</a> <strong class="jxr_keyword">if</strong> (keepDeletedCells == KeepDeletedCells.FALSE +<a class="jxr_linenumber" name="340" href="#340">340</a> || (keepDeletedCells == KeepDeletedCells.TTL && timestamp < ttl)) { +<a class="jxr_linenumber" name="341" href="#341">341</a> <em class="jxr_comment">// first ignore delete markers if the scanner can do so, and the</em> +<a class="jxr_linenumber" name="342" href="#342">342</a> <em class="jxr_comment">// range does not include the marker</em> +<a class="jxr_linenumber" name="343" href="#343">343</a> <em class="jxr_comment">//</em> +<a class="jxr_linenumber" name="344" href="#344">344</a> <em class="jxr_comment">// during flushes and compactions also ignore delete markers newer</em> +<a class="jxr_linenumber" name="345" href="#345">345</a> <em class="jxr_comment">// than the readpoint of any open scanner, this prevents deleted</em> +<a class="jxr_linenumber" name="346" href="#346">346</a> <em class="jxr_comment">// rows that could still be seen by a scanner from being collected</em> +<a class="jxr_linenumber" name="347" href="#347">347</a> <strong class="jxr_keyword">boolean</strong> includeDeleteMarker = seePastDeleteMarkers ? +<a class="jxr_linenumber" name="348" href="#348">348</a> tr.withinTimeRange(timestamp) : +<a class="jxr_linenumber" name="349" href="#349">349</a> tr.withinOrAfterTimeRange(timestamp); +<a class="jxr_linenumber" name="350" href="#350">350</a> <strong class="jxr_keyword">if</strong> (includeDeleteMarker +<a class="jxr_linenumber" name="351" href="#351">351</a> && mvccVersion <= maxReadPointToTrackVersions) { +<a class="jxr_linenumber" name="352" href="#352">352</a> <strong class="jxr_keyword">this</strong>.deletes.add(cell); +<a class="jxr_linenumber" name="353" href="#353">353</a> } +<a class="jxr_linenumber" name="354" href="#354">354</a> <em class="jxr_comment">// Can't early out now, because DelFam come before any other keys</em> +<a class="jxr_linenumber" name="355" href="#355">355</a> } +<a class="jxr_linenumber" name="356" href="#356">356</a> +<a class="jxr_linenumber" name="357" href="#357">357</a> <strong class="jxr_keyword">if</strong> ((!isUserScan) +<a class="jxr_linenumber" name="358" href="#358">358</a> && timeToPurgeDeletes > 0 +<a class="jxr_linenumber" name="359" href="#359">359</a> && (EnvironmentEdgeManager.currentTime() - timestamp) +<a class="jxr_linenumber" name="360" href="#360">360</a> <= timeToPurgeDeletes) { +<a class="jxr_linenumber
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