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Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
Lucene::CharFilter Class Reference

Subclasses of CharFilter can be chained to filter CharStream. They can be used as Reader with additional offset correction. Tokenizers will automatically use correctOffset if a CharFilter/CharStream subclass is used. More...

#include <CharFilter.h>

+ Inheritance diagram for Lucene::CharFilter:

Public Member Functions

virtual ~CharFilter ()
 
virtual String getClassName ()
 
boost::shared_ptr< CharFiltershared_from_this ()
 
- Public Member Functions inherited from Lucene::CharStream
virtual ~CharStream ()
 
boost::shared_ptr< CharStreamshared_from_this ()
 
- Public Member Functions inherited from Lucene::Reader
virtual ~Reader ()
 
boost::shared_ptr< Readershared_from_this ()
 
virtual int32_t read ()
 Read a single character.
 
virtual int64_t skip (int64_t n)
 Skip characters.
 
virtual int64_t length ()
 The number of bytes in the stream.
 
- Public Member Functions inherited from Lucene::LuceneObject
virtual ~LuceneObject ()
 
virtual void initialize ()
 Called directly after instantiation to create objects that depend on this object being fully constructed.
 
virtual LuceneObjectPtr clone (const LuceneObjectPtr &other=LuceneObjectPtr())
 Return clone of this object.
 
virtual int32_t hashCode ()
 Return hash code for this object.
 
virtual bool equals (const LuceneObjectPtr &other)
 Return whether two objects are equal.
 
virtual int32_t compareTo (const LuceneObjectPtr &other)
 Compare two objects.
 
virtual String toString ()
 Returns a string representation of the object.
 
- Public Member Functions inherited from Lucene::LuceneSync
virtual ~LuceneSync ()
 
virtual SynchronizePtr getSync ()
 Return this object synchronize lock.
 
virtual LuceneSignalPtr getSignal ()
 Return this object signal.
 
virtual void lock (int32_t timeout=0)
 Lock this object using an optional timeout.
 
virtual void unlock ()
 Unlock this object.
 
virtual bool holdsLock ()
 Returns true if this object is currently locked by current thread.
 
virtual void wait (int32_t timeout=0)
 Wait for signal using an optional timeout.
 
virtual void notifyAll ()
 Notify all threads waiting for signal.
 

Static Public Member Functions

static String _getClassName ()
 
- Static Public Member Functions inherited from Lucene::CharStream
static String _getClassName ()
 
- Static Public Member Functions inherited from Lucene::Reader
static String _getClassName ()
 

Protected Member Functions

 CharFilter (const CharStreamPtr &in)
 
virtual int32_t correct (int32_t currentOff)
 Subclass may want to override to correct the current offset.
 
virtual int32_t correctOffset (int32_t currentOff)
 Chains the corrected offset through the input CharFilter.
 
virtual void close ()
 Close the stream.
 
virtual int32_t read (wchar_t *buffer, int32_t offset, int32_t length)
 Read characters into a portion of an array.
 
virtual bool markSupported ()
 Tell whether this stream supports the mark() operation.
 
virtual void mark (int32_t readAheadLimit)
 Mark the present position in the stream. Subsequent calls to reset() will attempt to reposition the stream to this point.
 
virtual void reset ()
 Reset the stream. If the stream has been marked, then attempt to reposition it at the mark. If the stream has not been marked, then attempt to reset it in some way appropriate to the particular stream, for example by repositioning it to its starting point.
 
- Protected Member Functions inherited from Lucene::Reader
 Reader ()
 
- Protected Member Functions inherited from Lucene::LuceneObject
 LuceneObject ()
 

Protected Attributes

CharStreamPtr input
 
- Protected Attributes inherited from Lucene::LuceneSync
SynchronizePtr objectLock
 
LuceneSignalPtr objectSignal
 

Additional Inherited Members

- Static Public Attributes inherited from Lucene::Reader
static const int32_t READER_EOF
 

Detailed Description

Subclasses of CharFilter can be chained to filter CharStream. They can be used as Reader with additional offset correction. Tokenizers will automatically use correctOffset if a CharFilter/CharStream subclass is used.

Constructor & Destructor Documentation

◆ CharFilter()

Lucene::CharFilter::CharFilter ( const CharStreamPtr in)
protected

◆ ~CharFilter()

virtual Lucene::CharFilter::~CharFilter ( )
virtual

Member Function Documentation

◆ _getClassName()

static String Lucene::CharFilter::_getClassName ( )
inlinestatic

◆ close()

virtual void Lucene::CharFilter::close ( )
protectedvirtual

Close the stream.

Implements Lucene::Reader.

◆ correct()

virtual int32_t Lucene::CharFilter::correct ( int32_t  currentOff)
protectedvirtual

Subclass may want to override to correct the current offset.

Parameters
currentOffcurrent offset
Returns
corrected offset

Reimplemented in Lucene::BaseCharFilter.

◆ correctOffset()

virtual int32_t Lucene::CharFilter::correctOffset ( int32_t  currentOff)
protectedvirtual

Chains the corrected offset through the input CharFilter.

Implements Lucene::CharStream.

◆ getClassName()

virtual String Lucene::CharFilter::getClassName ( )
inlinevirtual

Reimplemented from Lucene::CharStream.

Reimplemented in Lucene::BaseCharFilter, and Lucene::MappingCharFilter.

◆ mark()

virtual void Lucene::CharFilter::mark ( int32_t  readAheadLimit)
protectedvirtual

Mark the present position in the stream. Subsequent calls to reset() will attempt to reposition the stream to this point.

Reimplemented from Lucene::Reader.

◆ markSupported()

virtual bool Lucene::CharFilter::markSupported ( )
protectedvirtual

Tell whether this stream supports the mark() operation.

Reimplemented from Lucene::Reader.

◆ read()

virtual int32_t Lucene::CharFilter::read ( wchar_t *  buffer,
int32_t  offset,
int32_t  length 
)
protectedvirtual

Read characters into a portion of an array.

Implements Lucene::Reader.

Reimplemented in Lucene::MappingCharFilter.

◆ reset()

virtual void Lucene::CharFilter::reset ( )
protectedvirtual

Reset the stream. If the stream has been marked, then attempt to reposition it at the mark. If the stream has not been marked, then attempt to reset it in some way appropriate to the particular stream, for example by repositioning it to its starting point.

Reimplemented from Lucene::Reader.

◆ shared_from_this()

boost::shared_ptr< CharFilter > Lucene::CharFilter::shared_from_this ( )
inline

Field Documentation

◆ input

CharStreamPtr Lucene::CharFilter::input
protected

The documentation for this class was generated from the following file:

clucene.sourceforge.net