public final class ReverseStringFilter
extends org.apache.lucene.analysis.TokenFilter
If marker
is supplied, then tokens will be also prepended by
that character. For example, with a marker of \u0001, "country" =>
"\u0001yrtnuoc". This is useful when implementing efficient leading
wildcards search.
You must specify the required Version
compatibility when creating ReverseStringFilter, or when using any of
its static methods:
Modifier and Type | Field and Description |
---|---|
static char |
INFORMATION_SEPARATOR_MARKER
Example marker character: U+001F (INFORMATION SEPARATOR ONE)
|
static char |
PUA_EC00_MARKER
Example marker character: U+EC00 (PRIVATE USE AREA: EC00)
|
static char |
RTL_DIRECTION_MARKER
Example marker character: U+200F (RIGHT-TO-LEFT MARK)
|
static char |
START_OF_HEADING_MARKER
Example marker character: U+0001 (START OF HEADING)
|
Constructor and Description |
---|
ReverseStringFilter(org.apache.lucene.analysis.TokenStream in)
Deprecated.
use
ReverseStringFilter(Version, TokenStream)
instead. This constructor will be removed in Lucene 4.0 |
ReverseStringFilter(org.apache.lucene.analysis.TokenStream in,
char marker)
Deprecated.
use
ReverseStringFilter(Version, TokenStream, char)
instead. This constructor will be removed in Lucene 4.0 |
ReverseStringFilter(org.apache.lucene.util.Version matchVersion,
org.apache.lucene.analysis.TokenStream in)
Create a new ReverseStringFilter that reverses all tokens in the
supplied
TokenStream . |
ReverseStringFilter(org.apache.lucene.util.Version matchVersion,
org.apache.lucene.analysis.TokenStream in,
char marker)
Create a new ReverseStringFilter that reverses and marks all tokens in the
supplied
TokenStream . |
Modifier and Type | Method and Description |
---|---|
boolean |
incrementToken() |
static void |
reverse(char[] buffer)
Deprecated.
use
reverse(Version, char[]) instead. This
method will be removed in Lucene 4.0 |
static void |
reverse(char[] buffer,
int len)
Deprecated.
use
reverse(Version, char[], int) instead. This
method will be removed in Lucene 4.0 |
static void |
reverse(char[] buffer,
int start,
int len)
Deprecated.
use
reverse(Version, char[], int, int) instead. This
method will be removed in Lucene 4.0 |
static String |
reverse(String input)
Deprecated.
use
reverse(Version, String) instead. This method
will be removed in Lucene 4.0 |
static void |
reverse(org.apache.lucene.util.Version matchVersion,
char[] buffer)
Reverses the given input buffer in-place
|
static void |
reverse(org.apache.lucene.util.Version matchVersion,
char[] buffer,
int len)
Partially reverses the given input buffer in-place from offset 0
up to the given length.
|
static void |
reverse(org.apache.lucene.util.Version matchVersion,
char[] buffer,
int start,
int len)
Partially reverses the given input buffer in-place from the given offset
up to the given length.
|
static String |
reverse(org.apache.lucene.util.Version matchVersion,
String input)
Reverses the given input string
|
addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState, toString
public static final char START_OF_HEADING_MARKER
public static final char INFORMATION_SEPARATOR_MARKER
public static final char PUA_EC00_MARKER
public static final char RTL_DIRECTION_MARKER
@Deprecated public ReverseStringFilter(org.apache.lucene.analysis.TokenStream in)
ReverseStringFilter(Version, TokenStream)
instead. This constructor will be removed in Lucene 4.0TokenStream
.
The reversed tokens will not be marked.
in
- TokenStream
to filter@Deprecated public ReverseStringFilter(org.apache.lucene.analysis.TokenStream in, char marker)
ReverseStringFilter(Version, TokenStream, char)
instead. This constructor will be removed in Lucene 4.0TokenStream
.
The reversed tokens will be prepended (marked) by the marker
character.
in
- TokenStream
to filtermarker
- A character used to mark reversed tokenspublic ReverseStringFilter(org.apache.lucene.util.Version matchVersion, org.apache.lucene.analysis.TokenStream in)
TokenStream
.
The reversed tokens will not be marked.
matchVersion
- See abovein
- TokenStream
to filterpublic ReverseStringFilter(org.apache.lucene.util.Version matchVersion, org.apache.lucene.analysis.TokenStream in, char marker)
TokenStream
.
The reversed tokens will be prepended (marked) by the marker
character.
matchVersion
- See abovein
- TokenStream
to filtermarker
- A character used to mark reversed tokenspublic boolean incrementToken() throws IOException
incrementToken
in class org.apache.lucene.analysis.TokenStream
IOException
@Deprecated public static String reverse(String input)
reverse(Version, String)
instead. This method
will be removed in Lucene 4.0input
- the string to reversepublic static String reverse(org.apache.lucene.util.Version matchVersion, String input)
matchVersion
- See aboveinput
- the string to reverse@Deprecated public static void reverse(char[] buffer)
reverse(Version, char[])
instead. This
method will be removed in Lucene 4.0buffer
- the input char array to reversepublic static void reverse(org.apache.lucene.util.Version matchVersion, char[] buffer)
matchVersion
- See abovebuffer
- the input char array to reverse@Deprecated public static void reverse(char[] buffer, int len)
reverse(Version, char[], int)
instead. This
method will be removed in Lucene 4.0buffer
- the input char array to reverselen
- the length in the buffer up to where the
buffer should be reversedpublic static void reverse(org.apache.lucene.util.Version matchVersion, char[] buffer, int len)
matchVersion
- See abovebuffer
- the input char array to reverselen
- the length in the buffer up to where the
buffer should be reversed@Deprecated public static void reverse(char[] buffer, int start, int len)
reverse(Version, char[], int, int)
instead. This
method will be removed in Lucene 4.0buffer
- the input char array to reversestart
- the offset from where to reverse the bufferlen
- the length in the buffer up to where the
buffer should be reversedpublic static void reverse(org.apache.lucene.util.Version matchVersion, char[] buffer, int start, int len)
matchVersion
- See abovebuffer
- the input char array to reversestart
- the offset from where to reverse the bufferlen
- the length in the buffer up to where the
buffer should be reversed