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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/03/24 15:13:31 UTC

[29/51] [partial] hbase-site git commit: Published site at e468b4022f76688851b3e0c34722f01a56bd624f.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/16541468/apidocs/src-html/org/apache/hadoop/hbase/client/Scan.ReadType.html
----------------------------------------------------------------------
diff --git a/apidocs/src-html/org/apache/hadoop/hbase/client/Scan.ReadType.html b/apidocs/src-html/org/apache/hadoop/hbase/client/Scan.ReadType.html
index 935839d..64dfea4 100644
--- a/apidocs/src-html/org/apache/hadoop/hbase/client/Scan.ReadType.html
+++ b/apidocs/src-html/org/apache/hadoop/hbase/client/Scan.ReadType.html
@@ -67,7 +67,7 @@
 <span class="sourceLineNo">059</span> * To only retrieve columns within a specific range of version timestamps, call<a name="line.59"></a>
 <span class="sourceLineNo">060</span> * {@link #setTimeRange(long, long) setTimeRange}.<a name="line.60"></a>
 <span class="sourceLineNo">061</span> * &lt;p&gt;<a name="line.61"></a>
-<span class="sourceLineNo">062</span> * To only retrieve columns with a specific timestamp, call {@link #setTimeStamp(long) setTimestamp}<a name="line.62"></a>
+<span class="sourceLineNo">062</span> * To only retrieve columns with a specific timestamp, call {@link #setTimestamp(long) setTimestamp}<a name="line.62"></a>
 <span class="sourceLineNo">063</span> * .<a name="line.63"></a>
 <span class="sourceLineNo">064</span> * &lt;p&gt;<a name="line.64"></a>
 <span class="sourceLineNo">065</span> * To limit the number of versions of each column to be returned, call {@link #setMaxVersions(int)<a name="line.65"></a>
@@ -149,7 +149,7 @@
 <span class="sourceLineNo">141</span>  private long maxResultSize = -1;<a name="line.141"></a>
 <span class="sourceLineNo">142</span>  private boolean cacheBlocks = true;<a name="line.142"></a>
 <span class="sourceLineNo">143</span>  private boolean reversed = false;<a name="line.143"></a>
-<span class="sourceLineNo">144</span>  private TimeRange tr = new TimeRange();<a name="line.144"></a>
+<span class="sourceLineNo">144</span>  private TimeRange tr = TimeRange.allTime();<a name="line.144"></a>
 <span class="sourceLineNo">145</span>  private Map&lt;byte [], NavigableSet&lt;byte []&gt;&gt; familyMap =<a name="line.145"></a>
 <span class="sourceLineNo">146</span>    new TreeMap&lt;byte [], NavigableSet&lt;byte []&gt;&gt;(Bytes.BYTES_COMPARATOR);<a name="line.146"></a>
 <span class="sourceLineNo">147</span>  private Boolean asyncPrefetch = null;<a name="line.147"></a>
@@ -384,869 +384,887 @@
 <span class="sourceLineNo">376</span>   * @see #setMaxVersions()<a name="line.376"></a>
 <span class="sourceLineNo">377</span>   * @see #setMaxVersions(int)<a name="line.377"></a>
 <span class="sourceLineNo">378</span>   * @return this<a name="line.378"></a>
-<span class="sourceLineNo">379</span>   */<a name="line.379"></a>
-<span class="sourceLineNo">380</span>  public Scan setTimeStamp(long timestamp)<a name="line.380"></a>
-<span class="sourceLineNo">381</span>  throws IOException {<a name="line.381"></a>
-<span class="sourceLineNo">382</span>    try {<a name="line.382"></a>
-<span class="sourceLineNo">383</span>      tr = new TimeRange(timestamp, timestamp+1);<a name="line.383"></a>
-<span class="sourceLineNo">384</span>    } catch(Exception e) {<a name="line.384"></a>
-<span class="sourceLineNo">385</span>      // This should never happen, unless integer overflow or something extremely wrong...<a name="line.385"></a>
-<span class="sourceLineNo">386</span>      LOG.error("TimeRange failed, likely caused by integer overflow. ", e);<a name="line.386"></a>
-<span class="sourceLineNo">387</span>      throw e;<a name="line.387"></a>
-<span class="sourceLineNo">388</span>    }<a name="line.388"></a>
-<span class="sourceLineNo">389</span>    return this;<a name="line.389"></a>
-<span class="sourceLineNo">390</span>  }<a name="line.390"></a>
-<span class="sourceLineNo">391</span><a name="line.391"></a>
-<span class="sourceLineNo">392</span>  @Override public Scan setColumnFamilyTimeRange(byte[] cf, long minStamp, long maxStamp) {<a name="line.392"></a>
-<span class="sourceLineNo">393</span>    return (Scan) super.setColumnFamilyTimeRange(cf, minStamp, maxStamp);<a name="line.393"></a>
-<span class="sourceLineNo">394</span>  }<a name="line.394"></a>
-<span class="sourceLineNo">395</span><a name="line.395"></a>
-<span class="sourceLineNo">396</span>  /**<a name="line.396"></a>
-<span class="sourceLineNo">397</span>   * Set the start row of the scan.<a name="line.397"></a>
-<span class="sourceLineNo">398</span>   * &lt;p&gt;<a name="line.398"></a>
-<span class="sourceLineNo">399</span>   * If the specified row does not exist, the Scanner will start from the next closest row after the<a name="line.399"></a>
-<span class="sourceLineNo">400</span>   * specified row.<a name="line.400"></a>
-<span class="sourceLineNo">401</span>   * @param startRow row to start scanner at or after<a name="line.401"></a>
-<span class="sourceLineNo">402</span>   * @return this<a name="line.402"></a>
-<span class="sourceLineNo">403</span>   * @throws IllegalArgumentException if startRow does not meet criteria for a row key (when length<a name="line.403"></a>
-<span class="sourceLineNo">404</span>   *           exceeds {@link HConstants#MAX_ROW_LENGTH})<a name="line.404"></a>
-<span class="sourceLineNo">405</span>   * @deprecated use {@link #withStartRow(byte[])} instead. This method may change the inclusive of<a name="line.405"></a>
-<span class="sourceLineNo">406</span>   *             the stop row to keep compatible with the old behavior.<a name="line.406"></a>
-<span class="sourceLineNo">407</span>   */<a name="line.407"></a>
-<span class="sourceLineNo">408</span>  @Deprecated<a name="line.408"></a>
-<span class="sourceLineNo">409</span>  public Scan setStartRow(byte[] startRow) {<a name="line.409"></a>
-<span class="sourceLineNo">410</span>    withStartRow(startRow);<a name="line.410"></a>
-<span class="sourceLineNo">411</span>    if (ClientUtil.areScanStartRowAndStopRowEqual(this.startRow, this.stopRow)) {<a name="line.411"></a>
-<span class="sourceLineNo">412</span>      // for keeping the old behavior that a scan with the same start and stop row is a get scan.<a name="line.412"></a>
-<span class="sourceLineNo">413</span>      this.includeStopRow = true;<a name="line.413"></a>
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-<span class="sourceLineNo">415</span>    return this;<a name="line.415"></a>
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-<span class="sourceLineNo">417</span><a name="line.417"></a>
-<span class="sourceLineNo">418</span>  /**<a name="line.418"></a>
-<span class="sourceLineNo">419</span>   * Set the start row of the scan.<a name="line.419"></a>
-<span class="sourceLineNo">420</span>   * &lt;p&gt;<a name="line.420"></a>
-<span class="sourceLineNo">421</span>   * If the specified row does not exist, the Scanner will start from the next closest row after the<a name="line.421"></a>
-<span class="sourceLineNo">422</span>   * specified row.<a name="line.422"></a>
-<span class="sourceLineNo">423</span>   * @param startRow row to start scanner at or after<a name="line.423"></a>
-<span class="sourceLineNo">424</span>   * @return this<a name="line.424"></a>
-<span class="sourceLineNo">425</span>   * @throws IllegalArgumentException if startRow does not meet criteria for a row key (when length<a name="line.425"></a>
-<span class="sourceLineNo">426</span>   *           exceeds {@link HConstants#MAX_ROW_LENGTH})<a name="line.426"></a>
-<span class="sourceLineNo">427</span>   */<a name="line.427"></a>
-<span class="sourceLineNo">428</span>  public Scan withStartRow(byte[] startRow) {<a name="line.428"></a>
-<span class="sourceLineNo">429</span>    return withStartRow(startRow, true);<a name="line.429"></a>
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-<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>   * Set the start row of the scan.<a name="line.433"></a>
-<span class="sourceLineNo">434</span>   * &lt;p&gt;<a name="line.434"></a>
-<span class="sourceLineNo">435</span>   * If the specified row does not exist, or the {@code inclusive} is {@code false}, the Scanner<a name="line.435"></a>
-<span class="sourceLineNo">436</span>   * will start from the next closest row after the specified row.<a name="line.436"></a>
-<span class="sourceLineNo">437</span>   * @param startRow row to start scanner at or after<a name="line.437"></a>
-<span class="sourceLineNo">438</span>   * @param inclusive whether we should include the start row when scan<a name="line.438"></a>
-<span class="sourceLineNo">439</span>   * @return this<a name="line.439"></a>
-<span class="sourceLineNo">440</span>   * @throws IllegalArgumentException if startRow does not meet criteria for a row key (when length<a name="line.440"></a>
-<span class="sourceLineNo">441</span>   *           exceeds {@link HConstants#MAX_ROW_LENGTH})<a name="line.441"></a>
-<span class="sourceLineNo">442</span>   */<a name="line.442"></a>
-<span class="sourceLineNo">443</span>  public Scan withStartRow(byte[] startRow, boolean inclusive) {<a name="line.443"></a>
-<span class="sourceLineNo">444</span>    if (Bytes.len(startRow) &gt; HConstants.MAX_ROW_LENGTH) {<a name="line.444"></a>
-<span class="sourceLineNo">445</span>      throw new IllegalArgumentException("startRow's length must be less than or equal to "<a name="line.445"></a>
-<span class="sourceLineNo">446</span>          + HConstants.MAX_ROW_LENGTH + " to meet the criteria" + " for a row key.");<a name="line.446"></a>
-<span class="sourceLineNo">447</span>    }<a name="line.447"></a>
-<span class="sourceLineNo">448</span>    this.startRow = startRow;<a name="line.448"></a>
-<span class="sourceLineNo">449</span>    this.includeStartRow = inclusive;<a name="line.449"></a>
-<span class="sourceLineNo">450</span>    return this;<a name="line.450"></a>
-<span class="sourceLineNo">451</span>  }<a name="line.451"></a>
-<span class="sourceLineNo">452</span><a name="line.452"></a>
-<span class="sourceLineNo">453</span>  /**<a name="line.453"></a>
-<span class="sourceLineNo">454</span>   * Set the stop row of the scan.<a name="line.454"></a>
-<span class="sourceLineNo">455</span>   * &lt;p&gt;<a name="line.455"></a>
-<span class="sourceLineNo">456</span>   * The scan will include rows that are lexicographically less than the provided stopRow.<a name="line.456"></a>
-<span class="sourceLineNo">457</span>   * &lt;p&gt;<a name="line.457"></a>
-<span class="sourceLineNo">458</span>   * &lt;b&gt;Note:&lt;/b&gt; When doing a filter for a rowKey &lt;u&gt;Prefix&lt;/u&gt; use<a name="line.458"></a>
-<span class="sourceLineNo">459</span>   * {@link #setRowPrefixFilter(byte[])}. The 'trailing 0' will not yield the desired result.<a name="line.459"></a>
-<span class="sourceLineNo">460</span>   * &lt;/p&gt;<a name="line.460"></a>
-<span class="sourceLineNo">461</span>   * @param stopRow row to end at (exclusive)<a name="line.461"></a>
-<span class="sourceLineNo">462</span>   * @return this<a name="line.462"></a>
-<span class="sourceLineNo">463</span>   * @throws IllegalArgumentException if stopRow does not meet criteria for a row key (when length<a name="line.463"></a>
-<span class="sourceLineNo">464</span>   *           exceeds {@link HConstants#MAX_ROW_LENGTH})<a name="line.464"></a>
-<span class="sourceLineNo">465</span>   * @deprecated use {@link #withStartRow(byte[])} instead. This method may change the inclusive of<a name="line.465"></a>
-<span class="sourceLineNo">466</span>   *             the stop row to keep compatible with the old behavior.<a name="line.466"></a>
-<span class="sourceLineNo">467</span>   */<a name="line.467"></a>
-<span class="sourceLineNo">468</span>  @Deprecated<a name="line.468"></a>
-<span class="sourceLineNo">469</span>  public Scan setStopRow(byte[] stopRow) {<a name="line.469"></a>
-<span class="sourceLineNo">470</span>    withStopRow(stopRow);<a name="line.470"></a>
-<span class="sourceLineNo">471</span>    if (ClientUtil.areScanStartRowAndStopRowEqual(this.startRow, this.stopRow)) {<a name="line.471"></a>
-<span class="sourceLineNo">472</span>      // for keeping the old behavior that a scan with the same start and stop row is a get scan.<a name="line.472"></a>
-<span class="sourceLineNo">473</span>      this.includeStopRow = true;<a name="line.473"></a>
-<span class="sourceLineNo">474</span>    }<a name="line.474"></a>
-<span class="sourceLineNo">475</span>    return this;<a name="line.475"></a>
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-<span class="sourceLineNo">477</span><a name="line.477"></a>
-<span class="sourceLineNo">478</span>  /**<a name="line.478"></a>
-<span class="sourceLineNo">479</span>   * Set the stop row of the scan.<a name="line.479"></a>
-<span class="sourceLineNo">480</span>   * &lt;p&gt;<a name="line.480"></a>
-<span class="sourceLineNo">481</span>   * The scan will include rows that are lexicographically less than the provided stopRow.<a name="line.481"></a>
-<span class="sourceLineNo">482</span>   * &lt;p&gt;<a name="line.482"></a>
-<span class="sourceLineNo">483</span>   * &lt;b&gt;Note:&lt;/b&gt; When doing a filter for a rowKey &lt;u&gt;Prefix&lt;/u&gt; use<a name="line.483"></a>
-<span class="sourceLineNo">484</span>   * {@link #setRowPrefixFilter(byte[])}. The 'trailing 0' will not yield the desired result.<a name="line.484"></a>
-<span class="sourceLineNo">485</span>   * &lt;/p&gt;<a name="line.485"></a>
-<span class="sourceLineNo">486</span>   * @param stopRow row to end at (exclusive)<a name="line.486"></a>
-<span class="sourceLineNo">487</span>   * @return this<a name="line.487"></a>
-<span class="sourceLineNo">488</span>   * @throws IllegalArgumentException if stopRow does not meet criteria for a row key (when length<a name="line.488"></a>
-<span class="sourceLineNo">489</span>   *           exceeds {@link HConstants#MAX_ROW_LENGTH})<a name="line.489"></a>
-<span class="sourceLineNo">490</span>   */<a name="line.490"></a>
-<span class="sourceLineNo">491</span>  public Scan withStopRow(byte[] stopRow) {<a name="line.491"></a>
-<span class="sourceLineNo">492</span>    return withStopRow(stopRow, false);<a name="line.492"></a>
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-<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>   * Set the stop row of the scan.<a name="line.496"></a>
-<span class="sourceLineNo">497</span>   * &lt;p&gt;<a name="line.497"></a>
-<span class="sourceLineNo">498</span>   * The scan will include rows that are lexicographically less than (or equal to if<a name="line.498"></a>
-<span class="sourceLineNo">499</span>   * {@code inclusive} is {@code true}) the provided stopRow.<a name="line.499"></a>
-<span class="sourceLineNo">500</span>   * @param stopRow row to end at<a name="line.500"></a>
-<span class="sourceLineNo">501</span>   * @param inclusive whether we should include the stop row when scan<a name="line.501"></a>
-<span class="sourceLineNo">502</span>   * @return this<a name="line.502"></a>
-<span class="sourceLineNo">503</span>   * @throws IllegalArgumentException if stopRow does not meet criteria for a row key (when length<a name="line.503"></a>
-<span class="sourceLineNo">504</span>   *           exceeds {@link HConstants#MAX_ROW_LENGTH})<a name="line.504"></a>
-<span class="sourceLineNo">505</span>   */<a name="line.505"></a>
-<span class="sourceLineNo">506</span>  public Scan withStopRow(byte[] stopRow, boolean inclusive) {<a name="line.506"></a>
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-<span class="sourceLineNo">509</span>          + HConstants.MAX_ROW_LENGTH + " to meet the criteria" + " for a row key.");<a name="line.509"></a>
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-<span class="sourceLineNo">511</span>    this.stopRow = stopRow;<a name="line.511"></a>
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-<span class="sourceLineNo">513</span>    return this;<a name="line.513"></a>
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-<span class="sourceLineNo">515</span><a name="line.515"></a>
-<span class="sourceLineNo">516</span>  /**<a name="line.516"></a>
-<span class="sourceLineNo">517</span>   * &lt;p&gt;Set a filter (using stopRow and startRow) so the result set only contains rows where the<a name="line.517"></a>
-<span class="sourceLineNo">518</span>   * rowKey starts with the specified prefix.&lt;/p&gt;<a name="line.518"></a>
-<span class="sourceLineNo">519</span>   * &lt;p&gt;This is a utility method that converts the desired rowPrefix into the appropriate values<a name="line.519"></a>
-<span class="sourceLineNo">520</span>   * for the startRow and stopRow to achieve the desired result.&lt;/p&gt;<a name="line.520"></a>
-<span class="sourceLineNo">521</span>   * &lt;p&gt;This can safely be used in combination with setFilter.&lt;/p&gt;<a name="line.521"></a>
-<span class="sourceLineNo">522</span>   * &lt;p&gt;&lt;b&gt;NOTE: Doing a {@link #setStartRow(byte[])} and/or {@link #setStopRow(byte[])}<a name="line.522"></a>
-<span class="sourceLineNo">523</span>   * after this method will yield undefined results.&lt;/b&gt;&lt;/p&gt;<a name="line.523"></a>
-<span class="sourceLineNo">524</span>   * @param rowPrefix the prefix all rows must start with. (Set &lt;i&gt;null&lt;/i&gt; to remove the filter.)<a name="line.524"></a>
-<span class="sourceLineNo">525</span>   * @return this<a name="line.525"></a>
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-<span class="sourceLineNo">532</span>      this.setStartRow(rowPrefix);<a name="line.532"></a>
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-<span class="sourceLineNo">535</span>    return this;<a name="line.535"></a>
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-<span class="sourceLineNo">537</span><a name="line.537"></a>
-<span class="sourceLineNo">538</span>  /**<a name="line.538"></a>
-<span class="sourceLineNo">539</span>   * &lt;p&gt;When scanning for a prefix the scan should stop immediately after the the last row that<a name="line.539"></a>
-<span class="sourceLineNo">540</span>   * has the specified prefix. This method calculates the closest next rowKey immediately following<a name="line.540"></a>
-<span class="sourceLineNo">541</span>   * the given rowKeyPrefix.&lt;/p&gt;<a name="line.541"></a>
-<span class="sourceLineNo">542</span>   * &lt;p&gt;&lt;b&gt;IMPORTANT: This converts a rowKey&lt;u&gt;Prefix&lt;/u&gt; into a rowKey&lt;/b&gt;.&lt;/p&gt;<a name="line.542"></a>
-<span class="sourceLineNo">543</span>   * &lt;p&gt;If the prefix is an 'ASCII' string put into a byte[] then this is easy because you can<a name="line.543"></a>
-<span class="sourceLineNo">544</span>   * simply increment the last byte of the array.<a name="line.544"></a>
-<span class="sourceLineNo">545</span>   * But if your application uses real binary rowids you may run into the scenario that your<a name="line.545"></a>
-<span class="sourceLineNo">546</span>   * prefix is something like:&lt;/p&gt;<a name="line.546"></a>
-<span class="sourceLineNo">547</span>   * &amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;b&gt;{ 0x12, 0x23, 0xFF, 0xFF }&lt;/b&gt;&lt;br/&gt;<a name="line.547"></a>
-<span class="sourceLineNo">548</span>   * Then this stopRow needs to be fed into the actual scan&lt;br/&gt;<a name="line.548"></a>
-<span class="sourceLineNo">549</span>   * &amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;b&gt;{ 0x12, 0x24 }&lt;/b&gt; (Notice that it is shorter now)&lt;br/&gt;<a name="line.549"></a>
-<span class="sourceLineNo">550</span>   * This method calculates the correct stop row value for this usecase.<a name="line.550"></a>
-<span class="sourceLineNo">551</span>   *<a name="line.551"></a>
-<span class="sourceLineNo">552</span>   * @param rowKeyPrefix the rowKey&lt;u&gt;Prefix&lt;/u&gt;.<a name="line.552"></a>
-<span class="sourceLineNo">553</span>   * @return the closest next rowKey immediately following the given rowKeyPrefix.<a name="line.553"></a>
-<span class="sourceLineNo">554</span>   */<a name="line.554"></a>
-<span class="sourceLineNo">555</span>  private byte[] calculateTheClosestNextRowKeyForPrefix(byte[] rowKeyPrefix) {<a name="line.555"></a>
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-<span class="sourceLineNo">557</span>    // Search for the place where the trailing 0xFFs start<a name="line.557"></a>
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-<span class="sourceLineNo">561</span>        break;<a name="line.561"></a>
-<span class="sourceLineNo">562</span>      }<a name="line.562"></a>
-<span class="sourceLineNo">563</span>      offset--;<a name="line.563"></a>
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-<span class="sourceLineNo">565</span><a name="line.565"></a>
-<span class="sourceLineNo">566</span>    if (offset == 0) {<a name="line.566"></a>
-<span class="sourceLineNo">567</span>      // We got an 0xFFFF... (only FFs) stopRow value which is<a name="line.567"></a>
-<span class="sourceLineNo">568</span>      // the last possible prefix before the end of the table.<a name="line.568"></a>
-<span class="sourceLineNo">569</span>      // So set it to stop at the 'end of the table'<a name="line.569"></a>
-<span class="sourceLineNo">570</span>      return HConstants.EMPTY_END_ROW;<a name="line.570"></a>
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+<span class="sourceLineNo">555</span><a name="line.555"></a>
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