org.apache.solr.analysis
Class PatternReplaceCharFilter
java.lang.Object
java.io.Reader
org.apache.lucene.analysis.CharStream
org.apache.lucene.analysis.CharFilter
org.apache.lucene.analysis.BaseCharFilter
org.apache.solr.analysis.PatternReplaceCharFilter
- All Implemented Interfaces:
- Closeable, Readable
public class PatternReplaceCharFilter
- extends org.apache.lucene.analysis.BaseCharFilter
CharFilter that uses a regular expression for the target of replace string.
The pattern match will be done in each "block" in char stream.
ex1) source="aa bb aa bb", pattern="(aa)\\s+(bb)" replacement="$1#$2"
output="aa#bb aa#bb"
NOTE: If you produce a phrase that has different length to source string
and the field is used for highlighting for a term of the phrase, you will
face a trouble.
ex2) source="aa123bb", pattern="(aa)\\d+(bb)" replacement="$1 $2"
output="aa bb"
and you want to search bb and highlight it, you will get
highlight snippet="aa1<em>23bb</em>"
- Since:
- Solr 1.5
- Version:
- $Id: PatternReplaceCharFilter.java 1065312 2011-01-30 16:08:25Z rmuir $
Fields inherited from class org.apache.lucene.analysis.CharFilter |
input |
Constructor Summary |
PatternReplaceCharFilter(Pattern pattern,
String replacement,
org.apache.lucene.analysis.CharStream in)
|
PatternReplaceCharFilter(Pattern pattern,
String replacement,
int maxBlockChars,
org.apache.lucene.analysis.CharStream in)
|
PatternReplaceCharFilter(Pattern pattern,
String replacement,
int maxBlockChars,
String blockDelimiters,
org.apache.lucene.analysis.CharStream in)
|
PatternReplaceCharFilter(Pattern pattern,
String replacement,
String blockDelimiters,
org.apache.lucene.analysis.CharStream in)
|
Method Summary |
int |
read()
|
int |
read(char[] cbuf,
int off,
int len)
|
Methods inherited from class org.apache.lucene.analysis.BaseCharFilter |
addOffCorrectMap, correct, getLastCumulativeDiff |
Methods inherited from class org.apache.lucene.analysis.CharFilter |
close, correctOffset, mark, markSupported, reset |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DEFAULT_MAX_BLOCK_CHARS
public static final int DEFAULT_MAX_BLOCK_CHARS
- See Also:
- Constant Field Values
PatternReplaceCharFilter
public PatternReplaceCharFilter(Pattern pattern,
String replacement,
org.apache.lucene.analysis.CharStream in)
PatternReplaceCharFilter
public PatternReplaceCharFilter(Pattern pattern,
String replacement,
int maxBlockChars,
org.apache.lucene.analysis.CharStream in)
PatternReplaceCharFilter
public PatternReplaceCharFilter(Pattern pattern,
String replacement,
String blockDelimiters,
org.apache.lucene.analysis.CharStream in)
PatternReplaceCharFilter
public PatternReplaceCharFilter(Pattern pattern,
String replacement,
int maxBlockChars,
String blockDelimiters,
org.apache.lucene.analysis.CharStream in)
read
public int read()
throws IOException
- Overrides:
read
in class Reader
- Throws:
IOException
read
public int read(char[] cbuf,
int off,
int len)
throws IOException
- Overrides:
read
in class org.apache.lucene.analysis.CharFilter
- Throws:
IOException
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