com.sun.labs.minion.indexer.entry
Class MPCasedDFOEntry

java.lang.Object
  com.sun.labs.minion.indexer.entry.BaseEntry
      com.sun.labs.minion.indexer.entry.CasedEntry
          com.sun.labs.minion.indexer.entry.CasedDFOEntry
              com.sun.labs.minion.indexer.entry.MPCasedDFOEntry

All Implemented Interfaces:

CasedPostingsEntry, Entry, IndexEntry, QueryEntry, java.lang.Comparable

public class MPCasedDFOEntry
extends CasedDFOEntry

Field Summary

Fields inherited from class com.sun.labs.minion.indexer.entry.CasedDFOEntry

CI, CS, fnpSize, logTag, maxfdt, to

Fields inherited from class com.sun.labs.minion.indexer.entry.CasedEntry

ciEntry, n, offset, p, size, totalSize

Fields inherited from class com.sun.labs.minion.indexer.entry.BaseEntry

dict, id, name, postIn

Constructor Summary

MPCasedDFOEntry()

MPCasedDFOEntry(java.lang.Object name)

Method Summary

void	decodePostingsInfo(ReadableBuffer b, int pos) Decodes the postings information associated with this entry.
void	encodePostingsInfo(WriteableBuffer b) Encodes any information associated with the postings onto the given buffer.
Entry	getEntry() Duplicates the contents of this entry, except for any postings.
Entry	getEntry(java.lang.Object name) Gets a new entry with the given name.
int	getNumChannels() Returns the number of channels needed to store the postings for this entry type.
protected void	init() Initializes the arrays containing postings, sizes, etc.
void	readPostings() Reads the postings data for this entry.
void	readPostings(int pos) Reads the postings data for this entry.
boolean	writePostings(PostingsOutput[] out, int[] idMap) Writes the postings associated with this entry to some or all of the given channels.

Methods inherited from class com.sun.labs.minion.indexer.entry.CasedDFOEntry

addCaseInsensitive, addCaseSensitive, append, getCaseInsensitivePostings, getCaseSensitivePostings, getInstance, getMaxFDT, getN, getTotalOccurrences, hasFieldInformation, hasPositionInformation, initPostings, iterator, nameOccurred

Methods inherited from class com.sun.labs.minion.indexer.entry.CasedEntry

add, add, getCaseInsensitiveEntry, setCaseInsensitiveEntry

Methods inherited from class com.sun.labs.minion.indexer.entry.BaseEntry

compareTo, getID, getName, getPartition, setDictionary, setID, setName, setPostingsInput, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MPCasedDFOEntry

public MPCasedDFOEntry()

MPCasedDFOEntry

public MPCasedDFOEntry(java.lang.Object name)

Method Detail

getEntry

public Entry getEntry(java.lang.Object name)

Description copied from interface: Entry

Gets a new entry with the given name.

Specified by:

getEntry in interface Entry

Overrides:

getEntry in class CasedDFOEntry

Parameters:

name - the name that we want to give the entry.

Returns:

a new entry.

getEntry

public Entry getEntry()

Duplicates the contents of this entry, except for any postings.

Specified by:

getEntry in interface Entry

Overrides:

getEntry in class CasedDFOEntry

Returns:

a new entry.

init

protected void init()

Description copied from class: CasedEntry

Initializes the arrays containing postings, sizes, etc.

Overrides:

init in class CasedDFOEntry

getNumChannels

public int getNumChannels()

Returns the number of channels needed to store the postings for this entry type.

Specified by:

getNumChannels in interface Entry

Overrides:

getNumChannels in class CasedEntry

encodePostingsInfo

public void encodePostingsInfo(WriteableBuffer b)

Encodes any information associated with the postings onto the given buffer.

Specified by:

encodePostingsInfo in interface IndexEntry

Overrides:

encodePostingsInfo in class CasedDFOEntry

Parameters:

b - The buffer onto which the postings information should be encoded. The buffer will be positioned to the correct spot for the encoding.

writePostings

public boolean writePostings(PostingsOutput[] out,
                             int[] idMap)
                      throws java.io.IOException

Writes the postings associated with this entry to some or all of the given channels.

Specified by:

writePostings in interface IndexEntry

Overrides:

writePostings in class CasedDFOEntry

Parameters:

out - The outputs to which we will write the postings.

idMap - A map from the IDs currently used in the postings to the IDs that should be used when the postings are written to disk. This may be null, in which case no remapping will occur.

Returns:

true if postings were written, false otherwise

Throws:

java.io.IOException - if there is any error writing the postings.

decodePostingsInfo

public void decodePostingsInfo(ReadableBuffer b,
                               int pos)

Decodes the postings information associated with this entry.

Specified by:

decodePostingsInfo in interface QueryEntry

Overrides:

decodePostingsInfo in class CasedDFOEntry

Parameters:

b - The buffer containing the encoded postings information.

pos - The position in b where the postings information can be found.

readPostings

public void readPostings(int pos)
                  throws java.io.IOException

Reads the postings data for this entry. This method must load all available postings information, since this will be used at dictionary merge time to append postings from one entry onto another.

Overrides:

readPostings in class CasedDFOEntry

Throws:

java.io.IOException - if there is any error reading the postings.

readPostings

public void readPostings()
                  throws java.io.IOException

Reads the postings data for this entry. This method must load all available postings information, since this will be used at dictionary merge time to append postings from one entry onto another.

Specified by:

readPostings in interface QueryEntry

Overrides:

readPostings in class CasedDFOEntry

Throws:

java.io.IOException - if there is any error reading the postings.