org.apache.hadoop.hbase.filter

Class RegexStringComparator.JavaRegexEngine

java.lang.Object

org.apache.hadoop.hbase.filter.RegexStringComparator.JavaRegexEngine

All Implemented Interfaces:

RegexStringComparator.Engine

Enclosing class:

RegexStringComparator

static class RegexStringComparator.JavaRegexEngine
extends Object
implements RegexStringComparator.Engine

Implementation of the Engine interface using Java's Pattern.

This is the default engine.

Field Summary

Fields

Modifier and Type	Field and Description
private Charset	charset
private Pattern	pattern

Constructor Summary

Constructors

Constructor and Description
JavaRegexEngine(String regex, int flags)

Method Summary

Modifier and Type	Method and Description
int	compareTo(byte[] value, int offset, int length) Match the given input against the configured pattern
String	getCharset() Returns the name of the configured charset
int	getFlags() Returns the set of configured match flags, a bit mask that may include Pattern flags
String	getPattern() Returns the string representation of the configured regular expression for matching
void	setCharset(String charset) Set the charset used when matching
byte[]	toByteArray() Return the serialized form of the configured matcher

Methods inherited from class java.lang.Object

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

Field Detail

charset

private Charset charset

pattern

private Pattern pattern

Constructor Detail

JavaRegexEngine

public JavaRegexEngine(String regex,
                       int flags)

Method Detail

getPattern

public String getPattern()

Description copied from interface: RegexStringComparator.Engine

Returns the string representation of the configured regular expression for matching

Specified by:

getPattern in interface RegexStringComparator.Engine

getFlags

public int getFlags()

Description copied from interface: RegexStringComparator.Engine

Returns the set of configured match flags, a bit mask that may include Pattern flags

Specified by:

getFlags in interface RegexStringComparator.Engine

getCharset

public String getCharset()

Description copied from interface: RegexStringComparator.Engine

Returns the name of the configured charset

Specified by:

getCharset in interface RegexStringComparator.Engine

setCharset

public void setCharset(String charset)

Description copied from interface: RegexStringComparator.Engine

Set the charset used when matching

Specified by:

setCharset in interface RegexStringComparator.Engine

Parameters:

charset - the name of the desired charset for matching

compareTo

public int compareTo(byte[] value,
                     int offset,
                     int length)

Description copied from interface: RegexStringComparator.Engine

Match the given input against the configured pattern

Specified by:

compareTo in interface RegexStringComparator.Engine

Parameters:

value - the data to be matched

offset - offset of the data to be matched

length - length of the data to be matched

Returns:

0 if a match was made, 1 otherwise

toByteArray

public byte[] toByteArray()

Description copied from interface: RegexStringComparator.Engine

Return the serialized form of the configured matcher

Specified by:

toByteArray in interface RegexStringComparator.Engine