Lucene++ - a full-featured, c++ search engine
API Documentation


Loading...
Searching...
No Matches
Public Member Functions | Static Public Member Functions | Protected Attributes
Lucene::FilterTermDocs Class Reference

Base class for filtering TermDocs implementations. More...

#include <FilterIndexReader.h>

+ Inheritance diagram for Lucene::FilterTermDocs:

Public Member Functions

 FilterTermDocs (const TermDocsPtr &in)
 
virtual ~FilterTermDocs ()
 
virtual String getClassName ()
 
boost::shared_ptr< FilterTermDocsshared_from_this ()
 
virtual void seek (const TermPtr &term)
 Sets this to the data for a term. The enumeration is reset to the start of the data for this term.
 
virtual void seek (const TermEnumPtr &termEnum)
 Sets this to the data for the current term in a TermEnum. This may be optimized in some implementations.
 
virtual int32_t doc ()
 Returns the current document number. This is invalid until next() is called for the first time.
 
virtual int32_t freq ()
 Returns the frequency of the term within the current document. This is invalid until next() is called for the first time.
 
virtual bool next ()
 Moves to the next pair in the enumeration. Returns true if there is such a next pair in the enumeration.
 
virtual int32_t read (Collection< int32_t > &docs, Collection< int32_t > &freqs)
 Attempts to read multiple entries from the enumeration, up to length of docs. Document numbers are stored in docs, and term frequencies are stored in freqs. Returns the number of entries read. Zero is only returned when the stream has been exhausted.
 
virtual bool skipTo (int32_t target)
 Skips entries to the first beyond the current whose document number is greater than or equal to target. Returns true if there is such an entry.
 
virtual void close ()
 Frees associated resources.
 
- Public Member Functions inherited from Lucene::TermPositions
virtual ~TermPositions ()
 
virtual int32_t nextPosition ()
 Returns next position in the current document. It is an error to call this more than freq() times without calling next(). This is invalid until next() is called for.
 
virtual int32_t getPayloadLength ()
 Returns the length of the payload at the current term position. This is invalid until nextPosition() is called for the first time.
 
virtual ByteArray getPayload (ByteArray data, int32_t offset)
 Returns the payload data at the current term position. This is invalid until nextPosition() is called for the first time. This method must not be called more than once after each call of nextPosition(). However, payloads are loaded lazily, so if the payload data for the current position is not needed, this method may not be called at all for performance reasons.
 
virtual bool isPayloadAvailable ()
 Checks if a payload can be loaded at this position. Payloads can only be loaded once per call to nextPosition().
 
- 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::TermPositions
static String _getClassName ()
 
- Static Public Member Functions inherited from Lucene::TermDocs
static String _getClassName ()
 

Protected Attributes

TermDocsPtr in
 
- Protected Attributes inherited from Lucene::LuceneSync
SynchronizePtr objectLock
 
LuceneSignalPtr objectSignal
 

Additional Inherited Members

- Protected Member Functions inherited from Lucene::TermPositions
 TermPositions ()
 
- Protected Member Functions inherited from Lucene::TermDocs
 TermDocs ()
 
- Protected Member Functions inherited from Lucene::LuceneObject
 LuceneObject ()
 

Detailed Description

Base class for filtering TermDocs implementations.

Constructor & Destructor Documentation

◆ FilterTermDocs()

Lucene::FilterTermDocs::FilterTermDocs ( const TermDocsPtr in)

◆ ~FilterTermDocs()

virtual Lucene::FilterTermDocs::~FilterTermDocs ( )
virtual

Member Function Documentation

◆ _getClassName()

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

◆ close()

virtual void Lucene::FilterTermDocs::close ( )
virtual

Frees associated resources.

Implements Lucene::TermDocs.

◆ doc()

virtual int32_t Lucene::FilterTermDocs::doc ( )
virtual

Returns the current document number. This is invalid until next() is called for the first time.

Implements Lucene::TermDocs.

◆ freq()

virtual int32_t Lucene::FilterTermDocs::freq ( )
virtual

Returns the frequency of the term within the current document. This is invalid until next() is called for the first time.

Implements Lucene::TermDocs.

◆ getClassName()

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

Reimplemented from Lucene::TermPositions.

Reimplemented in Lucene::FilterTermPositions.

◆ next()

virtual bool Lucene::FilterTermDocs::next ( )
virtual

Moves to the next pair in the enumeration. Returns true if there is such a next pair in the enumeration.

Implements Lucene::TermDocs.

◆ read()

virtual int32_t Lucene::FilterTermDocs::read ( Collection< int32_t > &  docs,
Collection< int32_t > &  freqs 
)
virtual

Attempts to read multiple entries from the enumeration, up to length of docs. Document numbers are stored in docs, and term frequencies are stored in freqs. Returns the number of entries read. Zero is only returned when the stream has been exhausted.

Implements Lucene::TermDocs.

◆ seek() [1/2]

virtual void Lucene::FilterTermDocs::seek ( const TermEnumPtr termEnum)
virtual

Sets this to the data for the current term in a TermEnum. This may be optimized in some implementations.

Implements Lucene::TermDocs.

◆ seek() [2/2]

virtual void Lucene::FilterTermDocs::seek ( const TermPtr term)
virtual

Sets this to the data for a term. The enumeration is reset to the start of the data for this term.

Implements Lucene::TermDocs.

◆ shared_from_this()

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

◆ skipTo()

virtual bool Lucene::FilterTermDocs::skipTo ( int32_t  target)
virtual

Skips entries to the first beyond the current whose document number is greater than or equal to target. Returns true if there is such an entry.

Implements Lucene::TermDocs.

Field Documentation

◆ in

TermDocsPtr Lucene::FilterTermDocs::in
protected

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

clucene.sourceforge.net