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java.lang.Objectorg.apache.hadoop.hbase.filter.ByteArrayComparable
org.apache.hadoop.hbase.filter.SubstringComparator
@InterfaceAudience.Public @InterfaceStability.Stable public class SubstringComparator
This comparator is for use with SingleColumnValueFilter, for filtering based on the value of a given column. Use it to test if a given substring appears in a cell value in the column. The comparison is case insensitive.
Only EQUAL or NOT_EQUAL tests are valid with this comparator.
For example:
SingleColumnValueFilter scvf = new SingleColumnValueFilter("col", CompareOp.EQUAL, new SubstringComparator("substr"));
Constructor Summary | |
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SubstringComparator(String substr)
Constructor |
Method Summary | |
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int |
compareTo(byte[] value,
int offset,
int length)
Special compareTo method for subclasses, to avoid copying byte[] unnecessarily. |
byte[] |
getValue()
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static SubstringComparator |
parseFrom(byte[] pbBytes)
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byte[] |
toByteArray()
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Methods inherited from class org.apache.hadoop.hbase.filter.ByteArrayComparable |
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compareTo |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SubstringComparator(String substr)
substr
- the substringMethod Detail |
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public byte[] getValue()
getValue
in class ByteArrayComparable
public int compareTo(byte[] value, int offset, int length)
ByteArrayComparable
compareTo
in class ByteArrayComparable
value
- byte[] to compareoffset
- offset into valuelength
- number of bytes to compare
public byte[] toByteArray()
toByteArray
in class ByteArrayComparable
public static SubstringComparator parseFrom(byte[] pbBytes) throws DeserializationException
pbBytes
- A pb serialized SubstringComparator
instance
SubstringComparator
made from bytes
DeserializationException
toByteArray()
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