org.hbase.async

Class MultipleColumnPrefixFilter

java.lang.Object

org.hbase.async.ScanFilter

org.hbase.async.MultipleColumnPrefixFilter

public final class MultipleColumnPrefixFilter
extends ScanFilter

Sets multiple binary prefix filters to filter results based on the column qualifiers.

Efficiently compares the column qualifier bytes up to the length of the prefix to see if it matches.

Only setting this filter will return all rows that match the criteria but at the same will cost a full table scan. However, it utilizes the sorting of the qualifiers to seek efficiently within the row.

Since:

1.8

Constructor Summary

Constructors

Constructor and Description
MultipleColumnPrefixFilter(byte[][] prefixes) Constructor.
MultipleColumnPrefixFilter(String[] prefixes) Constructor for UTF-8 prefix strings.

Method Summary

Modifier and Type	Method and Description
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MultipleColumnPrefixFilter

public MultipleColumnPrefixFilter(String[] prefixes)

Constructor for UTF-8 prefix strings.

MultipleColumnPrefixFilter

public MultipleColumnPrefixFilter(byte[][] prefixes)

Constructor.

Throws:

IllegalArgumentException - if the prefixes array is empty.

Method Detail

toString

public String toString()

Overrides:

toString in class Object