public abstract class CharFilterFactory extends AbstractAnalysisFactory
CharFilter
instances.Modifier and Type | Field and Description |
---|---|
private static AnalysisSPILoader<CharFilterFactory> |
loader |
LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion
Modifier | Constructor and Description |
---|---|
protected |
CharFilterFactory(java.util.Map<java.lang.String,java.lang.String> args)
Initialize this factory via a set of key-value pairs.
|
Modifier and Type | Method and Description |
---|---|
static java.util.Set<java.lang.String> |
availableCharFilters()
returns a list of all available charfilter names
|
abstract java.io.Reader |
create(java.io.Reader input)
Wraps the given Reader with a CharFilter.
|
static CharFilterFactory |
forName(java.lang.String name,
java.util.Map<java.lang.String,java.lang.String> args)
looks up a charfilter by name from context classpath
|
static java.lang.Class<? extends CharFilterFactory> |
lookupClass(java.lang.String name)
looks up a charfilter class by name from context classpath
|
java.io.Reader |
normalize(java.io.Reader input)
Normalize the specified input Reader
While the default implementation returns input unchanged,
char filters that should be applied at normalization time can delegate to
create method. |
static void |
reloadCharFilters(java.lang.ClassLoader classloader)
Reloads the factory list from the given
ClassLoader . |
get, get, get, get, get, getBoolean, getChar, getClassArg, getFloat, getInt, getLines, getLuceneMatchVersion, getOriginalArgs, getPattern, getSet, getSnowballWordSet, getWordSet, isExplicitLuceneMatchVersion, require, require, require, requireBoolean, requireChar, requireFloat, requireInt, setExplicitLuceneMatchVersion, splitAt, splitFileNames
private static final AnalysisSPILoader<CharFilterFactory> loader
protected CharFilterFactory(java.util.Map<java.lang.String,java.lang.String> args)
public static CharFilterFactory forName(java.lang.String name, java.util.Map<java.lang.String,java.lang.String> args)
public static java.lang.Class<? extends CharFilterFactory> lookupClass(java.lang.String name)
public static java.util.Set<java.lang.String> availableCharFilters()
public static void reloadCharFilters(java.lang.ClassLoader classloader)
ClassLoader
.
Changes to the factories are visible after the method ends, all
iterators (availableCharFilters()
,...) stay consistent.
NOTE: Only new factories are added, existing ones are never removed or replaced.
This method is expensive and should only be called for discovery of new factories on the given classpath/classloader!
public abstract java.io.Reader create(java.io.Reader input)
public java.io.Reader normalize(java.io.Reader input)
create
method.