Class PatternReplaceCharFilter
java.lang.Object
java.io.Reader
org.apache.lucene.analysis.CharFilter
org.apache.lucene.analysis.charfilter.BaseCharFilter
org.apache.lucene.analysis.pattern.PatternReplaceCharFilter
- All Implemented Interfaces:
Closeable
,AutoCloseable
,Readable
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
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Field Summary
Fields inherited from class org.apache.lucene.analysis.CharFilter
input
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Constructor Summary
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Method Summary
Methods inherited from class org.apache.lucene.analysis.charfilter.BaseCharFilter
addOffCorrectMap, getLastCumulativeDiff
Methods inherited from class org.apache.lucene.analysis.CharFilter
close, correctOffset
Methods inherited from class java.io.Reader
mark, markSupported, nullReader, read, read, ready, reset, skip, transferTo
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Constructor Details
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PatternReplaceCharFilter
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Method Details
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read
- Specified by:
read
in classReader
- Throws:
IOException
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read
- Overrides:
read
in classReader
- Throws:
IOException
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correct
protected int correct(int currentOff) Description copied from class:BaseCharFilter
Retrieve the corrected offset.- Overrides:
correct
in classBaseCharFilter
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