http://git-wip-us.apache.org/repos/asf/hbase-site/blob/00c22388/apidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.html ---------------------------------------------------------------------- diff --git a/apidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.html b/apidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.html index bbcbced..b72a2e0 100644 --- a/apidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.html +++ b/apidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.html @@ -155,489 +155,495 @@ <span class="sourceLineNo">147</span> return true;<a name="line.147"></a> <span class="sourceLineNo">148</span> }<a name="line.148"></a> <span class="sourceLineNo">149</span><a name="line.149"></a> -<span class="sourceLineNo">150</span> @Override<a name="line.150"></a> -<span class="sourceLineNo">151</span> public ReturnCode filterKeyValue(Cell c) {<a name="line.151"></a> -<span class="sourceLineNo">152</span> final int startIndex = lastFoundIndex >= 0 ? lastFoundIndex : 0;<a name="line.152"></a> -<span class="sourceLineNo">153</span> final int size = fuzzyKeysData.size();<a name="line.153"></a> -<span class="sourceLineNo">154</span> for (int i = startIndex; i < size + startIndex; i++) {<a name="line.154"></a> -<span class="sourceLineNo">155</span> final int index = i % size;<a name="line.155"></a> -<span class="sourceLineNo">156</span> Pair<byte[], byte[]> fuzzyData = fuzzyKeysData.get(index);<a name="line.156"></a> -<span class="sourceLineNo">157</span> // This shift is idempotent - always end up with 0 and -1 as mask values.<a name="line.157"></a> -<span class="sourceLineNo">158</span> for (int j = 0; j < fuzzyData.getSecond().length; j++) {<a name="line.158"></a> -<span class="sourceLineNo">159</span> fuzzyData.getSecond()[j] >>= 2;<a name="line.159"></a> -<span class="sourceLineNo">160</span> }<a name="line.160"></a> -<span class="sourceLineNo">161</span> SatisfiesCode satisfiesCode =<a name="line.161"></a> -<span class="sourceLineNo">162</span> satisfies(isReversed(), c.getRowArray(), c.getRowOffset(), c.getRowLength(),<a name="line.162"></a> -<span class="sourceLineNo">163</span> fuzzyData.getFirst(), fuzzyData.getSecond());<a name="line.163"></a> -<span class="sourceLineNo">164</span> if (satisfiesCode == SatisfiesCode.YES) {<a name="line.164"></a> -<span class="sourceLineNo">165</span> lastFoundIndex = index;<a name="line.165"></a> -<span class="sourceLineNo">166</span> return ReturnCode.INCLUDE;<a name="line.166"></a> -<span class="sourceLineNo">167</span> }<a name="line.167"></a> -<span class="sourceLineNo">168</span> }<a name="line.168"></a> -<span class="sourceLineNo">169</span> // NOT FOUND -> seek next using hint<a name="line.169"></a> -<span class="sourceLineNo">170</span> lastFoundIndex = -1;<a name="line.170"></a> -<span class="sourceLineNo">171</span><a name="line.171"></a> -<span class="sourceLineNo">172</span> return ReturnCode.SEEK_NEXT_USING_HINT;<a name="line.172"></a> -<span class="sourceLineNo">173</span><a name="line.173"></a> -<span class="sourceLineNo">174</span> }<a name="line.174"></a> -<span class="sourceLineNo">175</span><a name="line.175"></a> -<span class="sourceLineNo">176</span> @Override<a name="line.176"></a> -<span class="sourceLineNo">177</span> public Cell getNextCellHint(Cell currentCell) {<a name="line.177"></a> -<span class="sourceLineNo">178</span> boolean result = tracker.updateTracker(currentCell);<a name="line.178"></a> -<span class="sourceLineNo">179</span> if (result == false) {<a name="line.179"></a> -<span class="sourceLineNo">180</span> done = true;<a name="line.180"></a> -<span class="sourceLineNo">181</span> return null;<a name="line.181"></a> -<span class="sourceLineNo">182</span> }<a name="line.182"></a> -<span class="sourceLineNo">183</span> byte[] nextRowKey = tracker.nextRow();<a name="line.183"></a> -<span class="sourceLineNo">184</span> return CellUtil.createFirstOnRow(nextRowKey, 0, (short) nextRowKey.length);<a name="line.184"></a> -<span class="sourceLineNo">185</span> }<a name="line.185"></a> -<span class="sourceLineNo">186</span><a name="line.186"></a> -<span class="sourceLineNo">187</span> /**<a name="line.187"></a> -<span class="sourceLineNo">188</span> * If we have multiple fuzzy keys, row tracker should improve overall performance. 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class="sourceLineNo">307</span> }<a name="line.307"></a> -<span class="sourceLineNo">308</span><a name="line.308"></a> -<span class="sourceLineNo">309</span> // Utility methods<a name="line.309"></a> -<span class="sourceLineNo">310</span><a name="line.310"></a> -<span class="sourceLineNo">311</span> static enum SatisfiesCode {<a name="line.311"></a> -<span class="sourceLineNo">312</span> /** row satisfies fuzzy rule */<a name="line.312"></a> -<span class="sourceLineNo">313</span> YES,<a name="line.313"></a> -<span class="sourceLineNo">314</span> /** row doesn't satisfy fuzzy rule, but there's possible greater row that does */<a name="line.314"></a> -<span class="sourceLineNo">315</span> NEXT_EXISTS,<a name="line.315"></a> -<span class="sourceLineNo">316</span> /** row doesn't satisfy fuzzy rule and there's no greater row that does */<a name="line.316"></a> -<span class="sourceLineNo">317</span> NO_NEXT<a name="line.317"></a> -<span class="sourceLineNo">318</span> }<a 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fuzzyKeyMeta);<a name="line.328"></a> +<span class="sourceLineNo">242</span> boolean lessThan(Cell currentCell, byte[] nextRowKey) {<a name="line.242"></a> +<span class="sourceLineNo">243</span> int compareResult =<a name="line.243"></a> +<span class="sourceLineNo">244</span> CellComparatorImpl.COMPARATOR.compareRows(currentCell, nextRowKey, 0, nextRowKey.length);<a name="line.244"></a> +<span class="sourceLineNo">245</span> return (!isReversed() && compareResult < 0) || (isReversed() && compareResult > 0);<a name="line.245"></a> +<span class="sourceLineNo">246</span> }<a name="line.246"></a> +<span class="sourceLineNo">247</span><a name="line.247"></a> +<span class="sourceLineNo">248</span> void updateWith(Cell currentCell, Pair<byte[], byte[]> fuzzyData) {<a name="line.248"></a> +<span class="sourceLineNo">249</span> byte[] nextRowKeyCandidate =<a name="line.249"></a> +<span class="sourceLineNo">250</span> getNextForFuzzyRule(isReversed(), currentCell.getRowArray(), currentCell.getRowOffset(),<a name="line.250"></a> +<span class="sourceLineNo">251</span> currentCell.getRowLength(), fuzzyData.getFirst(), fuzzyData.getSecond());<a name="line.251"></a> +<span class="sourceLineNo">252</span> if (nextRowKeyCandidate != null) {<a name="line.252"></a> +<span class="sourceLineNo">253</span> nextRows.add(new Pair<>(nextRowKeyCandidate, fuzzyData));<a name="line.253"></a> +<span class="sourceLineNo">254</span> }<a name="line.254"></a> +<span class="sourceLineNo">255</span> }<a name="line.255"></a> +<span class="sourceLineNo">256</span><a name="line.256"></a> +<span class="sourceLineNo">257</span> }<a name="line.257"></a> +<span class="sourceLineNo">258</span><a name="line.258"></a> +<span class="sourceLineNo">259</span> @Override<a name="line.259"></a> +<span class="sourceLineNo">260</span> public boolean filterAllRemaining() {<a name="line.260"></a> +<span class="sourceLineNo">261</span> return done;<a name="line.261"></a> +<span 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class="sourceLineNo">272</span> bbpBuilder.setSecond(UnsafeByteOperations.unsafeWrap(fuzzyData.getSecond()));<a name="line.272"></a> +<span class="sourceLineNo">273</span> builder.addFuzzyKeysData(bbpBuilder);<a name="line.273"></a> +<span class="sourceLineNo">274</span> }<a name="line.274"></a> +<span class="sourceLineNo">275</span> return builder.build().toByteArray();<a name="line.275"></a> +<span class="sourceLineNo">276</span> }<a name="line.276"></a> +<span class="sourceLineNo">277</span><a name="line.277"></a> +<span class="sourceLineNo">278</span> /**<a name="line.278"></a> +<span class="sourceLineNo">279</span> * @param pbBytes A pb serialized {@link FuzzyRowFilter} instance<a name="line.279"></a> +<span class="sourceLineNo">280</span> * @return An instance of {@link FuzzyRowFilter} made from <code>bytes</code><a name="line.280"></a> +<span class="sourceLineNo">281</span> * @throws DeserializationException<a name="line.281"></a> +<span class="sourceLineNo">282</span> * @see 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fuzzyKeysData = new ArrayList<>(count);<a name="line.292"></a> +<span class="sourceLineNo">293</span> for (int i = 0; i < count; ++i) {<a name="line.293"></a> +<span class="sourceLineNo">294</span> BytesBytesPair current = proto.getFuzzyKeysData(i);<a name="line.294"></a> +<span class="sourceLineNo">295</span> byte[] keyBytes = current.getFirst().toByteArray();<a name="line.295"></a> +<span class="sourceLineNo">296</span> byte[] keyMeta = current.getSecond().toByteArray();<a name="line.296"></a> +<span class="sourceLineNo">297</span> fuzzyKeysData.add(new Pair<>(keyBytes, keyMeta));<a name="line.297"></a> +<span class="sourceLineNo">298</span> }<a name="line.298"></a> +<span class="sourceLineNo">299</span> return new FuzzyRowFilter(fuzzyKeysData);<a name="line.299"></a> +<span class="sourceLineNo">300</span> }<a name="line.300"></a> +<span class="sourceLineNo">301</span><a name="line.301"></a> +<span class="sourceLineNo">302</span> @Override<a name="line.302"></a> +<span class="sourceLineNo">303</span> public String toString() {<a name="line.303"></a> +<span class="sourceLineNo">304</span> final StringBuilder sb = new StringBuilder();<a name="line.304"></a> +<span class="sourceLineNo">305</span> sb.append("FuzzyRowFilter");<a name="line.305"></a> +<span class="sourceLineNo">306</span> sb.append("{fuzzyKeysData=");<a name="line.306"></a> +<span class="sourceLineNo">307</span> for (Pair<byte[], byte[]> fuzzyData : fuzzyKeysData) {<a name="line.307"></a> +<span class="sourceLineNo">308</span> sb.append('{').append(Bytes.toStringBinary(fuzzyData.getFirst())).append(":");<a name="line.308"></a> +<span class="sourceLineNo">309</span> sb.append(Bytes.toStringBinary(fuzzyData.getSecond())).append('}');<a name="line.309"></a> +<span class="sourceLineNo">310</span> }<a name="line.310"></a> +<span class="sourceLineNo">311</span> sb.append("}, ");<a name="line.311"></a> +<span class="sourceLineNo">312</span> return sb.toString();<a name="line.312"></a> +<span 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class="sourceLineNo">449</span> return getNextForFuzzyRule(reverse, row, 0, row.length, fuzzyKeyBytes, fuzzyKeyMeta);<a name="line.449"></a> +<span class="sourceLineNo">331</span> @VisibleForTesting<a name="line.331"></a> +<span class="sourceLineNo">332</span> static SatisfiesCode satisfies(boolean reverse, byte[] row, byte[] fuzzyKeyBytes,<a name="line.332"></a> +<span class="sourceLineNo">333</span> byte[] fuzzyKeyMeta) {<a name="line.333"></a> +<span class="sourceLineNo">334</span> return satisfies(reverse, row, 0, row.length, fuzzyKeyBytes, fuzzyKeyMeta);<a name="line.334"></a> +<span class="sourceLineNo">335</span> }<a name="line.335"></a> +<span class="sourceLineNo">336</span><a name="line.336"></a> +<span class="sourceLineNo">337</span> static SatisfiesCode satisfies(boolean reverse, byte[] row, int offset, int length,<a name="line.337"></a> +<span class="sourceLineNo">338</span> byte[] fuzzyKeyBytes, byte[] fuzzyKeyMeta) {<a name="line.338"></a> +<span class="sourceLineNo">339</span><a name="line.339"></a> +<span class="sourceLineNo">340</span> if (!UNSAFE_UNALIGNED) {<a name="line.340"></a> +<span class="sourceLineNo">341</span> return satisfiesNoUnsafe(reverse, row, offset, length, fuzzyKeyBytes, fuzzyKeyMeta);<a name="line.341"></a> +<span class="sourceLineNo">342</span> }<a name="line.342"></a> +<span class="sourceLineNo">343</span><a name="line.343"></a> +<span class="sourceLineNo">344</span> if (row == null) {<a name="line.344"></a> +<span class="sourceLineNo">345</span> // do nothing, let scan to proceed<a name="line.345"></a> +<span class="sourceLineNo">346</span> return SatisfiesCode.YES;<a name="line.346"></a> +<span class="sourceLineNo">347</span> }<a name="line.347"></a> +<span class="sourceLineNo">348</span> length = Math.min(length, fuzzyKeyBytes.length);<a name="line.348"></a> +<span class="sourceLineNo">349</span> int numWords = length / Bytes.SIZEOF_LONG;<a name="line.349"></a> +<span class="sourceLineNo">350</span><a name="line.350"></a> +<span class="sourceLineNo">351</span> int j = numWords << 3; // numWords * SIZEOF_LONG;<a name="line.351"></a> +<span class="sourceLineNo">352</span><a name="line.352"></a> +<span class="sourceLineNo">353</span> for (int i = 0; i < j; i += Bytes.SIZEOF_LONG) {<a name="line.353"></a> +<span class="sourceLineNo">354</span> long fuzzyBytes = UnsafeAccess.toLong(fuzzyKeyBytes, i);<a name="line.354"></a> +<span class="sourceLineNo">355</span> long fuzzyMeta = UnsafeAccess.toLong(fuzzyKeyMeta, i);<a name="line.355"></a> +<span class="sourceLineNo">356</span> long rowValue = UnsafeAccess.toLong(row, offset + i);<a name="line.356"></a> +<span class="sourceLineNo">357</span> if ((rowValue & fuzzyMeta) != (fuzzyBytes)) {<a name="line.357"></a> +<span class="sourceLineNo">358</span> // We always return NEXT_EXISTS<a name="line.358"></a> +<span class="sourceLineNo">359</span> return SatisfiesCode.NEXT_EXISTS;<a name="line.359"></a> +<span class="sourceLineNo">360</span> }<a name="line.360"></a> +<span class="sourceLineNo">361</span> }<a name="line.361"></a> +<span class="sourceLineNo">362</span><a name="line.362"></a> +<span class="sourceLineNo">363</span> int off = j;<a name="line.363"></a> +<span class="sourceLineNo">364</span><a name="line.364"></a> +<span class="sourceLineNo">365</span> if (length - off >= Bytes.SIZEOF_INT) {<a name="line.365"></a> +<span class="sourceLineNo">366</span> int fuzzyBytes = UnsafeAccess.toInt(fuzzyKeyBytes, off);<a name="line.366"></a> +<span class="sourceLineNo">367</span> int fuzzyMeta = UnsafeAccess.toInt(fuzzyKeyMeta, off);<a name="line.367"></a> +<span class="sourceLineNo">368</span> int rowValue = UnsafeAccess.toInt(row, offset + off);<a name="line.368"></a> +<span class="sourceLineNo">369</span> if ((rowValue & fuzzyMeta) != (fuzzyBytes)) {<a name="line.369"></a> +<span class="sourceLineNo">370</span> // We always return NEXT_EXISTS<a name="line.370"></a> +<span class="sourceLineNo">371</span> return SatisfiesCode.NEXT_EXISTS;<a name="line.371"></a> +<span class="sourceLineNo">372</span> }<a name="line.372"></a> +<span class="sourceLineNo">373</span> off += Bytes.SIZEOF_INT;<a name="line.373"></a> +<span class="sourceLineNo">374</span> }<a name="line.374"></a> +<span class="sourceLineNo">375</span><a name="line.375"></a> +<span class="sourceLineNo">376</span> if (length - off >= Bytes.SIZEOF_SHORT) {<a name="line.376"></a> +<span class="sourceLineNo">377</span> short fuzzyBytes = UnsafeAccess.toShort(fuzzyKeyBytes, off);<a name="line.377"></a> +<span class="sourceLineNo">378</span> short fuzzyMeta = UnsafeAccess.toShort(fuzzyKeyMeta, off);<a name="line.378"></a> +<span class="sourceLineNo">379</span> short rowValue = UnsafeAccess.toShort(row, offset + off);<a name="line.379"></a> +<span class="sourceLineNo">380</span> if ((rowValue & fuzzyMeta) != (fuzzyBytes)) {<a name="line.380"></a> +<span class="sourceLineNo">381</span> // We always return NEXT_EXISTS<a name="line.381"></a> +<span class="sourceLineNo">382</span> // even if it does not (in this case getNextForFuzzyRule<a name="line.382"></a> +<span class="sourceLineNo">383</span> // will return null)<a name="line.383"></a> +<span class="sourceLineNo">384</span> return SatisfiesCode.NEXT_EXISTS;<a name="line.384"></a> +<span class="sourceLineNo">385</span> }<a name="line.385"></a> +<span class="sourceLineNo">386</span> off += Bytes.SIZEOF_SHORT;<a name="line.386"></a> +<span class="sourceLineNo">387</span> }<a name="line.387"></a> +<span class="sourceLineNo">388</span><a name="line.388"></a> +<span class="sourceLineNo">389</span> if (length - off >= Bytes.SIZEOF_BYTE) {<a name="line.389"></a> +<span class="sourceLineNo">390</span> int fuzzyBytes = fuzzyKeyBytes[off] & 0xff;<a name="line.390"></a> +<span class="sourceLineNo">391</span> int fuzzyMeta = fuzzyKeyMeta[off] & 0xff;<a name="line.391"></a> +<span class="sourceLineNo">392</span> int rowValue = row[offset + off] & 0xff;<a name="line.392"></a> +<span class="sourceLineNo">393</span> if ((rowValue & fuzzyMeta) != (fuzzyBytes)) {<a name="line.393"></a> +<span class="sourceLineNo">394</span> // We always return NEXT_EXISTS<a name="line.394"></a> +<span class="sourceLineNo">395</span> return SatisfiesCode.NEXT_EXISTS;<a name="line.395"></a> +<span class="sourceLineNo">396</span> }<a name="line.396"></a> +<span class="sourceLineNo">397</span> }<a name="line.397"></a> +<span class="sourceLineNo">398</span> return SatisfiesCode.YES;<a name="line.398"></a> +<span class="sourceLineNo">399</span> }<a name="line.399"></a> +<span class="sourceLineNo">400</span><a name="line.400"></a> +<span class="sourceLineNo">401</span> static SatisfiesCode satisfiesNoUnsafe(boolean reverse, byte[] row, int offset, int length,<a name="line.401"></a> +<span class="sourceLineNo">402</span> byte[] fuzzyKeyBytes, byte[] fuzzyKeyMeta) {<a name="line.402"></a> +<span class="sourceLineNo">403</span> if (row == null) {<a 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class="sourceLineNo">414</span> boolean fixedByteIncorrect = byteAtPositionFixed && fuzzyKeyBytes[i] != row[i + offset];<a name="line.414"></a> +<span class="sourceLineNo">415</span> if (fixedByteIncorrect) {<a name="line.415"></a> +<span class="sourceLineNo">416</span> // in this case there's another row that satisfies fuzzy rule and bigger than this row<a name="line.416"></a> +<span class="sourceLineNo">417</span> if (nextRowKeyCandidateExists) {<a name="line.417"></a> +<span class="sourceLineNo">418</span> return SatisfiesCode.NEXT_EXISTS;<a name="line.418"></a> +<span class="sourceLineNo">419</span> }<a name="line.419"></a> +<span class="sourceLineNo">420</span><a name="line.420"></a> +<span class="sourceLineNo">421</span> // If this row byte is less than fixed then there's a byte array bigger than<a name="line.421"></a> +<span class="sourceLineNo">422</span> // this row and which satisfies the fuzzy rule. Otherwise there's no such byte array:<a name="line.422"></a> +<span class="sourceLineNo">423</span> // this row is simply bigger than any byte array that satisfies the fuzzy rule<a name="line.423"></a> +<span class="sourceLineNo">424</span> boolean rowByteLessThanFixed = (row[i + offset] & 0xFF) < (fuzzyKeyBytes[i] & 0xFF);<a name="line.424"></a> +<span class="sourceLineNo">425</span> if (rowByteLessThanFixed && !reverse) {<a name="line.425"></a> +<span class="sourceLineNo">426</span> return SatisfiesCode.NEXT_EXISTS;<a name="line.426"></a> +<span class="sourceLineNo">427</span> } else if (!rowByteLessThanFixed && reverse) {<a name="line.427"></a> +<span class="sourceLineNo">428</span> return SatisfiesCode.NEXT_EXISTS;<a name="line.428"></a> +<span class="sourceLineNo">429</span> } else {<a name="line.429"></a> +<span class="sourceLineNo">430</span> return SatisfiesCode.NO_NEXT;<a name="line.430"></a> +<span class="sourceLineNo">431</span> }<a name="line.431"></a> +<span class="sourceLineNo">432</span> }<a name="line.432"></a> +<span class="sourceLineNo">433</span><a name="line.433"></a> +<span class="sourceLineNo">434</span> // Second, checking if this position is not fixed and byte value is not the biggest. In this<a name="line.434"></a> +<span class="sourceLineNo">435</span> // case there's a byte array bigger than this row and which satisfies the fuzzy rule. To get<a name="line.435"></a> +<span class="sourceLineNo">436</span> // bigger byte array that satisfies the rule we need to just increase this byte<a name="line.436"></a> +<span class="sourceLineNo">437</span> // (see the code of getNextForFuzzyRule below) by one.<a name="line.437"></a> +<span class="sourceLineNo">438</span> // Note: if non-fixed byte is already at biggest value, this doesn't allow us to say there's<a name="line.438"></a> +<span class="sourceLineNo">439</span> // bigger one that satisfies the rule as it can't be increased.<a name="line.439"></a> +<span class="sourceLineNo">440</span> if (fuzzyKeyMeta[i] == 1 && !order.isMax(fuzzyKeyBytes[i])) {<a name="line.440"></a> +<span class="sourceLineNo">441</span> nextRowKeyCandidateExists = true;<a name="line.441"></a> +<span class="sourceLineNo">442</span> }<a name="line.442"></a> +<span class="sourceLineNo">443</span> }<a name="line.443"></a> +<span class="sourceLineNo">444</span> return SatisfiesCode.YES;<a name="line.444"></a> +<span class="sourceLineNo">445</span> }<a name="line.445"></a> +<span class="sourceLineNo">446</span><a name="line.446"></a> +<span class="sourceLineNo">447</span> @VisibleForTesting<a name="line.447"></a> +<span class="sourceLineNo">448</span> static byte[] getNextForFuzzyRule(byte[] row, byte[] fuzzyKeyBytes, byte[] fuzzyKeyMeta) {<a name="line.448"></a> +<span class="sourceLineNo">449</span> return getNextForFuzzyRule(false, row, 0, row.length, fuzzyKeyBytes, fuzzyKeyMeta);<a name="line.449"></a> <span class="sourceLineNo">450</span> }<a name="line.450"></a> <span class="sourceLineNo">451</span><a name="line.451"></a> -<span class="sourceLineNo">452</span> /** Abstracts directional comparisons based on scan direction. */<a name="line.452"></a> -<span class="sourceLineNo">453</span> private enum Order {<a name="line.453"></a> -<span class="sourceLineNo">454</span> ASC {<a name="line.454"></a> -<span class="sourceLineNo">455</span> public boolean lt(int lhs, int rhs) {<a name="line.455"></a> -<span class="sourceLineNo">456</span> return lhs < rhs;<a name="line.456"></a> -<span class="sourceLineNo">457</span> }<a name="line.457"></a> -<span class="sourceLineNo">458</span><a name="line.458"></a> -<span class="sourceLineNo">459</span> public boolean gt(int lhs, int rhs) {<a name="line.459"></a> -<span class="sourceLineNo">460</span> return lhs > rhs;<a name="line.460"></a> -<span class="sourceLineNo">461</span> }<a name="line.461"></a> -<span class="sourceLineNo">462</span><a name="line.462"></a> -<span class="sourceLineNo">463</span> public byte inc(byte val) {<a name="line.463"></a> -<span class="sourceLineNo">464</span> // TODO: what about over/underflow?<a name="line.464"></a> -<span class="sourceLineNo">465</span> return (byte) (val + 1);<a name="line.465"></a> -<span class="sourceLineNo">466</span> }<a name="line.466"></a> -<span class="sourceLineNo">467</span><a name="line.467"></a> -<span class="sourceLineNo">468</span> public boolean isMax(byte val) {<a name="line.468"></a> -<span class="sourceLineNo">469</span> return val == (byte) 0xff;<a name="line.469"></a> -<span class="sourceLineNo">470</span> }<a name="line.470"></a> -<span class="sourceLineNo">471</span><a name="line.471"></a> -<span class="sourceLineNo">472</span> public byte min() {<a name="line.472"></a> -<span class="sourceLineNo">473</span> return 0;<a name="line.473"></a> -<span class="sourceLineNo">474</span> }<a name="line.474"></a> -<span class="sourceLineNo">475</span> },<a name="line.475"></a> -<span class="sourceLineNo">476</span> DESC {<a name="line.476"></a> -<span class="sourceLineNo">477</span> public boolean lt(int lhs, int rhs) {<a name="line.477"></a> -<span class="sourceLineNo">478</span> return lhs > rhs;<a name="line.478"></a> -<span class="sourceLineNo">479</span> }<a name="line.479"></a> -<span class="sourceLineNo">480</span><a name="line.480"></a> -<span class="sourceLineNo">481</span> public boolean gt(int lhs, int rhs) {<a name="line.481"></a> -<span class="sourceLineNo">482</span> return lhs < rhs;<a name="line.482"></a> -<span class="sourceLineNo">483</span> }<a name="line.483"></a> -<span class="sourceLineNo">484</span><a name="line.484"></a> -<span class="sourceLineNo">485</span> public byte inc(byte val) {<a name="line.485"></a> -<span class="sourceLineNo">486</span> // TODO: what about over/underflow?<a name="line.486"></a> -<span class="sourceLineNo">487</span> return (byte) (val - 1);<a name="line.487"></a> -<span class="sourceLineNo">488</span> }<a name="line.488"></a> -<span class="sourceLineNo">489</span><a name="line.489"></a> -<span class="sourceLineNo">490</span> public boolean isMax(byte val) {<a name="line.490"></a> -<span class="sourceLineNo">491</span> return val == 0;<a name="line.491"></a> -<span class="sourceLineNo">492</span> }<a name="line.492"></a> -<span class="sourceLineNo">493</span><a name="line.493"></a> -<span class="sourceLineNo">494</span> public byte min() {<a name="line.494"></a> -<span class="sourceLineNo">495</span> return (byte) 0xFF;<a name="line.495"></a> -<span class="sourceLineNo">496</span> }<a name="line.496"></a> -<span class="sourceLineNo">497</span> };<a name="line.497"></a> -<span class="sourceLineNo">498</span><a name="line.498"></a> -<span class="sourceLineNo">499</span> public static Order orderFor(boolean reverse) {<a name="line.499"></a> -<span class="sourceLineNo">500</span> return reverse ? DESC : ASC;<a name="line.500"></a> -<span class="sourceLineNo">501</span> }<a name="line.501"></a> -<span class="sourceLineNo">502</span><a name="line.502"></a> -<span class="sourceLineNo">503</span> /** Returns true when {@code lhs < rhs}. */<a name="line.503"></a> -<span class="sourceLineNo">504</span> public abstract boolean lt(int lhs, int rhs);<a name="line.504"></a> -<span class="sourceLineNo">505</span><a name="line.505"></a> -<span class="sourceLineNo">506</span> /** Returns true when {@code lhs > rhs}. */<a name="line.506"></a> -<span class="sourceLineNo">507</span> public abstract boolean gt(int lhs, int rhs);<a name="line.507"></a> +<span class="sourceLineNo">452</span> @VisibleForTesting<a name="line.452"></a> +<span class="sourceLineNo">453</span> static byte[] getNextForFuzzyRule(boolean reverse, byte[] row, byte[] fuzzyKeyBytes,<a name="line.453"></a> +<span class="sourceLineNo">454</span> byte[] fuzzyKeyMeta) {<a name="line.454"></a> +<span class="sourceLineNo">455</span> return getNextForFuzzyRule(reverse, row, 0, row.length, fuzzyKeyBytes, fuzzyKeyMeta);<a name="line.455"></a> +<span class="sourceLineNo">456</span> }<a name="line.456"></a> +<span class="sourceLineNo">457</span><a name="line.457"></a> +<span class="sourceLineNo">458</span> /** Abstracts directional comparisons based on scan direction. */<a name="line.458"></a> +<span class="sourceLineNo">459</span> private enum Order {<a name="line.459"></a> +<span class="sourceLineNo">460</span> ASC {<a name="line.460"></a> +<span class="sourceLineNo">461</span> public boolean lt(int lhs, int rhs) {<a name="line.461"></a> +<span class="sourceLineNo">462</span> return lhs < rhs;<a name="line.462"></a> +<span class="sourceLineNo">463</span> }<a name="line.463"></a> +<span class="sourceLineNo">464</span><a name="line.464"></a> +<span class="sourceLineNo">465</span> public boolean gt(int lhs, int rhs) {<a name="line.465"></a> +<span class="sourceLineNo">466</span> return lhs > rhs;<a name="line.466"></a> +<span class="sourceLineNo">467</span> }<a name="line.467"></a> +<span class="sourceLineNo">468</span><a name="line.468"></a> +<span class="sourceLineNo">469</span> public byte inc(byte val) {<a name="line.469"></a> +<span class="sourceLineNo">470</span> // TODO: what about over/underflow?<a name="line.470"></a> +<span class="sourceLineNo">471</span> return (byte) (val + 1);<a name="line.471"></a> +<span class="sourceLineNo">472</span> }<a name="line.472"></a> +<span class="sourceLineNo">473</span><a name="line.473"></a> +<span class="sourceLineNo">474</span> public boolean isMax(byte val) {<a name="line.474"></a> +<span class="sourceLineNo">475</span> return val == (byte) 0xff;<a name="line.475"></a> +<span class="sourceLineNo">476</span> }<a name="line.476"></a> +<span class="sourceLineNo">477</span><a name="line.477"></a> +<span class="sourceLineNo">478</span> public byte min() {<a name="line.478"></a> +<span class="sourceLineNo">479</span> return 0;<a name="line.479"></a> +<span class="sourceLineNo">480</span> }<a name="line.480"></a> +<span class="sourceLineNo">481</span> },<a name="line.481"></a> +<span class="sourceLineNo">482</span> DESC {<a name="line.482"></a> +<span class="sourceLineNo">483</span> public boolean lt(int lhs, int rhs) {<a name="line.483"></a> +<span class="sourceLineNo">484</span> return lhs > rhs;<a name="line.484"></a> +<span class="sourceLineNo">485</span> }<a name="line.485"></a> +<span class="sourceLineNo">486</span><a name="line.486"></a> +<span class="sourceLineNo">487</span> public boolean gt(int lhs, int rhs) {<a name="line.487"></a> +<span class="sourceLineNo">488</span> return lhs < rhs;<a name="line.488"></a> +<span class="sourceLineNo">489</span> }<a name="line.489"></a> +<span class="sourceLineNo">490</span><a name="line.490"></a> +<span class="sourceLineNo">491</span> public byte inc(byte val) {<a name="line.491"></a> +<span class="sourceLineNo">492</span> // TODO: what about over/underflow?<a name="line.492"></a> +<span class="sourceLineNo">493</span> return (byte) (val - 1);<a name="line.493"></a> +<span class="sourceLineNo">494</span> }<a name="line.494"></a> +<span class="sourceLineNo">495</span><a name="line.495"></a> +<span class="sourceLineNo">496</span> public boolean isMax(byte val) {<a name="line.496"></a> +<span class="sourceLineNo">497</span> return val == 0;<a name="line.497"></a> +<span class="sourceLineNo">498</span> }<a name="line.498"></a> +<span class="sourceLineNo">499</span><a name="line.499"></a> +<span class="sourceLineNo">500</span> public byte min() {<a name="line.500"></a> +<span class="sourceLineNo">501</span> return (byte) 0xFF;<a name="line.501"></a> +<span class="sourceLineNo">502</span> }<a name="line.502"></a> +<span class="sourceLineNo">503</span> };<a name="line.503"></a> +<span class="sourceLineNo">504</span><a name="line.504"></a> +<span class="sourceLineNo">505</span> public static Order orderFor(boolean reverse) {<a name="line.505"></a> +<span class="sourceLineNo">506</span> return reverse ? 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