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| <h2 title="Class RegexStringComparator" class="title">Class RegexStringComparator</h2> |
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| <li>org.apache.hadoop.hbase.filter.RegexStringComparator</li> |
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| <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a><byte[]></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.Public |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.73">RegexStringComparator</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html" title="class in org.apache.hadoop.hbase.filter">ByteArrayComparable</a></pre> |
| <div class="block">This comparator is for use with <a href="../../../../../org/apache/hadoop/hbase/filter/CompareFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>CompareFilter</code></a> implementations, such |
| as <a href="../../../../../org/apache/hadoop/hbase/filter/RowFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>RowFilter</code></a>, <a href="../../../../../org/apache/hadoop/hbase/filter/QualifierFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>QualifierFilter</code></a>, and <a href="../../../../../org/apache/hadoop/hbase/filter/ValueFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>ValueFilter</code></a>, for |
| filtering based on the value of a given column. Use it to test if a given |
| regular expression matches a cell value in the column. |
| <p> |
| Only EQUAL or NOT_EQUAL comparisons are valid with this comparator. |
| <p> |
| For example: |
| <p> |
| <pre> |
| ValueFilter vf = new ValueFilter(CompareOp.EQUAL, |
| new RegexStringComparator( |
| // v4 IP address |
| "(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3,3}" + |
| "(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))(\\/[0-9]+)?" + |
| "|" + |
| // v6 IP address |
| "((([\\dA-Fa-f]{1,4}:){7}[\\dA-Fa-f]{1,4})(:([\\d]{1,3}.)" + |
| "{3}[\\d]{1,3})?)(\\/[0-9]+)?")); |
| </pre> |
| <p> |
| Supports <a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true" title="class or interface in java.util.regex"><code>Pattern</code></a> flags as well: |
| <p> |
| <pre> |
| ValueFilter vf = new ValueFilter(CompareOp.EQUAL, |
| new RegexStringComparator("regex", Pattern.CASE_INSENSITIVE | Pattern.DOTALL)); |
| </pre></div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true" title="class or interface in java.util.regex"><code>Pattern</code></a></dd> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.EngineType.html" title="enum in org.apache.hadoop.hbase.filter">RegexStringComparator.EngineType</a></span></code> |
| <div class="block">Engine implementation type (default=JAVA)</div> |
| </td> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#RegexStringComparator-java.lang.String-">RegexStringComparator</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expr)</code> |
| <div class="block">Constructor |
| Adds Pattern.DOTALL to the underlying Pattern</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#RegexStringComparator-java.lang.String-int-">RegexStringComparator</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expr, |
| int flags)</code> |
| <div class="block">Constructor</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#RegexStringComparator-java.lang.String-int-org.apache.hadoop.hbase.filter.RegexStringComparator.EngineType-">RegexStringComparator</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expr, |
| int flags, |
| <a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.EngineType.html" title="enum in org.apache.hadoop.hbase.filter">RegexStringComparator.EngineType</a> engine)</code> |
| <div class="block">Constructor</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#RegexStringComparator-java.lang.String-org.apache.hadoop.hbase.filter.RegexStringComparator.EngineType-">RegexStringComparator</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expr, |
| <a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.EngineType.html" title="enum in org.apache.hadoop.hbase.filter">RegexStringComparator.EngineType</a> engine)</code> |
| <div class="block">Constructor |
| Adds Pattern.DOTALL to the underlying Pattern</div> |
| </td> |
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| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#compareTo-byte:A-int-int-">compareTo</a></span>(byte[] value, |
| int offset, |
| int length)</code> |
| <div class="block">Special compareTo method for subclasses, to avoid |
| copying byte[] unnecessarily.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html" title="class in org.apache.hadoop.hbase.filter">RegexStringComparator</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#parseFrom-byte:A-">parseFrom</a></span>(byte[] pbBytes)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#setCharset-java.nio.charset.Charset-">setCharset</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</a> charset)</code> |
| <div class="block">Specifies the <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset"><code>Charset</code></a> to use to convert the row key to a String.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#toByteArray--">toByteArray</a></span>()</code> </td> |
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| <h3>Methods inherited from class org.apache.hadoop.hbase.filter.<a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html" title="class in org.apache.hadoop.hbase.filter">ByteArrayComparable</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html#compareTo-byte:A-">compareTo</a>, <a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html#compareTo-java.nio.ByteBuffer-int-int-">compareTo</a>, <a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html#getValue--">getValue</a></code></li> |
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| </ul> |
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| <h4>RegexStringComparator</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.91">RegexStringComparator</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expr)</pre> |
| <div class="block">Constructor |
| Adds Pattern.DOTALL to the underlying Pattern</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>expr</code> - a valid regular expression</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="RegexStringComparator-java.lang.String-org.apache.hadoop.hbase.filter.RegexStringComparator.EngineType-"> |
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| <h4>RegexStringComparator</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.101">RegexStringComparator</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expr, |
| <a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.EngineType.html" title="enum in org.apache.hadoop.hbase.filter">RegexStringComparator.EngineType</a> engine)</pre> |
| <div class="block">Constructor |
| Adds Pattern.DOTALL to the underlying Pattern</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>expr</code> - a valid regular expression</dd> |
| <dd><code>engine</code> - engine implementation type</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>RegexStringComparator</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.110">RegexStringComparator</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expr, |
| int flags)</pre> |
| <div class="block">Constructor</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>expr</code> - a valid regular expression</dd> |
| <dd><code>flags</code> - java.util.regex.Pattern flags</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="RegexStringComparator-java.lang.String-int-org.apache.hadoop.hbase.filter.RegexStringComparator.EngineType-"> |
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| <h4>RegexStringComparator</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.120">RegexStringComparator</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expr, |
| int flags, |
| <a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.EngineType.html" title="enum in org.apache.hadoop.hbase.filter">RegexStringComparator.EngineType</a> engine)</pre> |
| <div class="block">Constructor</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>expr</code> - a valid regular expression</dd> |
| <dd><code>flags</code> - java.util.regex.Pattern flags</dd> |
| <dd><code>engine</code> - engine implementation type</dd> |
| </dl> |
| </li> |
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| </a> |
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| <h4>setCharset</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.143">setCharset</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</a> charset)</pre> |
| <div class="block">Specifies the <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset"><code>Charset</code></a> to use to convert the row key to a String. |
| <p> |
| The row key needs to be converted to a String in order to be matched |
| against the regular expression. This method controls which charset is |
| used to do this conversion. |
| <p> |
| If the row key is made of arbitrary bytes, the charset <code>ISO-8859-1</code> |
| is recommended.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>charset</code> - The charset to use.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>compareTo</h4> |
| <pre>public int <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.148">compareTo</a>(byte[] value, |
| int offset, |
| int length)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html#compareTo-byte:A-int-int-">ByteArrayComparable</a></code></span></div> |
| <div class="block">Special compareTo method for subclasses, to avoid |
| copying byte[] unnecessarily.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html#compareTo-byte:A-int-int-">compareTo</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html" title="class in org.apache.hadoop.hbase.filter">ByteArrayComparable</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>value</code> - byte[] to compare</dd> |
| <dd><code>offset</code> - offset into value</dd> |
| <dd><code>length</code> - number of bytes to compare</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a negative integer, zero, or a positive integer as this object |
| is less than, equal to, or greater than the specified object.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toByteArray--"> |
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| <h4>toByteArray</h4> |
| <pre>public byte[] <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.156">toByteArray</a>()</pre> |
| <dl> |
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| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The comparator serialized using pb</dd> |
| </dl> |
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| </ul> |
| <a name="parseFrom-byte:A-"> |
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| <h4>parseFrom</h4> |
| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html" title="class in org.apache.hadoop.hbase.filter">RegexStringComparator</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/RegexStringComparator.html#line.166">parseFrom</a>(byte[] pbBytes) |
| throws org.apache.hadoop.hbase.exceptions.DeserializationException</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pbBytes</code> - A pb serialized <a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html" title="class in org.apache.hadoop.hbase.filter"><code>RegexStringComparator</code></a> instance</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An instance of <a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html" title="class in org.apache.hadoop.hbase.filter"><code>RegexStringComparator</code></a> made from <code>bytes</code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>org.apache.hadoop.hbase.exceptions.DeserializationException</code></dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/filter/RegexStringComparator.html#toByteArray--"><code>toByteArray()</code></a></dd> |
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