org.apache.lucene.search.suggest.jaspell

Class JaspellLookup

java.lang.Object

org.apache.lucene.search.suggest.Lookup

org.apache.lucene.search.suggest.jaspell.JaspellLookup

All Implemented Interfaces:

Accountable

Deprecated.

Migrate to one of the newer suggesters which are much more RAM efficient.

@Deprecated
public class JaspellLookup
extends Lookup
implements Accountable

Suggest implementation based on JaSpell.

See Also:

JaspellTernarySearchTrie

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.suggest.Lookup

Lookup.LookupPriorityQueue, Lookup.LookupResult

Field Summary

Fields

Modifier and Type	Field and Description
private long	count Deprecated. Number of entries the lookup was built with
private int	editDistance Deprecated.
private static byte	EQ_KID Deprecated.
private static byte	HAS_VALUE Deprecated.
private static byte	HI_KID Deprecated.
private static byte	LO_KID Deprecated.
(package private) JaspellTernarySearchTrie	trie Deprecated.
private boolean	usePrefix Deprecated.

Fields inherited from class org.apache.lucene.search.suggest.Lookup

CHARSEQUENCE_COMPARATOR

Constructor Summary

Constructors

Constructor and Description
JaspellLookup() Deprecated. Creates a new empty trie

Method Summary

Modifier and Type	Method and Description
boolean	add(java.lang.CharSequence key, java.lang.Object value) Deprecated. Adds a new node if key already exists, otherwise replaces its value.
void	build(InputIterator iterator) Deprecated. Builds up a new internal Lookup representation based on the given InputIterator.
java.lang.Object	get(java.lang.CharSequence key) Deprecated. Returns the value for the specified key, or null if the key does not exist.
long	getCount() Deprecated. Get the number of entries the lookup was built with
boolean	load(DataInput input) Deprecated. Discard current lookup data and load it from a previously saved copy.
java.util.List<Lookup.LookupResult>	lookup(java.lang.CharSequence key, java.util.Set<BytesRef> contexts, boolean onlyMorePopular, int num) Deprecated. Look up a key and return possible completion for this key.
long	ramBytesUsed() Deprecated. Return the memory usage of this object in bytes.
private void	readRecursively(DataInput in, JaspellTernarySearchTrie.TSTNode node) Deprecated.
boolean	store(DataOutput output) Deprecated. Persist the constructed lookup data to a directory.
private void	writeRecursively(DataOutput out, JaspellTernarySearchTrie.TSTNode node) Deprecated.

Methods inherited from class org.apache.lucene.search.suggest.Lookup

build, load, lookup, lookup, store

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources

Field Detail

trie

JaspellTernarySearchTrie trie

Deprecated.

usePrefix

private boolean usePrefix

Deprecated.

editDistance

private int editDistance

Deprecated.

count

private long count

Deprecated.

Number of entries the lookup was built with

LO_KID

private static final byte LO_KID

Deprecated.

See Also:

Constant Field Values

EQ_KID

private static final byte EQ_KID

Deprecated.

See Also:

Constant Field Values

HI_KID

private static final byte HI_KID

Deprecated.

See Also:

Constant Field Values

HAS_VALUE

private static final byte HAS_VALUE

Deprecated.

See Also:

Constant Field Values

Constructor Detail

JaspellLookup

public JaspellLookup()

Deprecated.

Creates a new empty trie

See Also:

build(InputIterator)

Method Detail

build

public void build(InputIterator iterator)
           throws java.io.IOException

Deprecated.

Description copied from class: Lookup

Builds up a new internal Lookup representation based on the given InputIterator. The implementation might re-sort the data internally.

Specified by:

build in class Lookup

Throws:

java.io.IOException

add

public boolean add(java.lang.CharSequence key,
                   java.lang.Object value)

Deprecated.

Adds a new node if key already exists, otherwise replaces its value.

This method always returns false.

get

public java.lang.Object get(java.lang.CharSequence key)

Deprecated.

Returns the value for the specified key, or null if the key does not exist.

lookup

public java.util.List<Lookup.LookupResult> lookup(java.lang.CharSequence key,
                                                  java.util.Set<BytesRef> contexts,
                                                  boolean onlyMorePopular,
                                                  int num)

Deprecated.

Description copied from class: Lookup

Look up a key and return possible completion for this key.

Specified by:

lookup in class Lookup

Parameters:

key - lookup key. Depending on the implementation this may be a prefix, misspelling, or even infix.

contexts - contexts to filter the lookup by, or null if all contexts are allowed; if the suggestion contains any of the contexts, it's a match

onlyMorePopular - return only more popular results

num - maximum number of results to return

Returns:

a list of possible completions, with their relative weight (e.g. popularity)

readRecursively

private void readRecursively(DataInput in,
                             JaspellTernarySearchTrie.TSTNode node)
                      throws java.io.IOException

Deprecated.

Throws:

java.io.IOException

writeRecursively

private void writeRecursively(DataOutput out,
                              JaspellTernarySearchTrie.TSTNode node)
                       throws java.io.IOException

Deprecated.

Throws:

java.io.IOException

store

public boolean store(DataOutput output)
              throws java.io.IOException

Deprecated.

Description copied from class: Lookup

Persist the constructed lookup data to a directory. Optional operation.

Specified by:

store in class Lookup

Parameters:

output - DataOutput to write the data to.

Returns:

true if successful, false if unsuccessful or not supported.

Throws:

java.io.IOException - when fatal IO error occurs.

load

public boolean load(DataInput input)
             throws java.io.IOException

Deprecated.

Description copied from class: Lookup

Discard current lookup data and load it from a previously saved copy. Optional operation.

Specified by:

load in class Lookup

Parameters:

input - the DataInput to load the lookup data.

Returns:

true if completed successfully, false if unsuccessful or not supported.

Throws:

java.io.IOException - when fatal IO error occurs.

ramBytesUsed

public long ramBytesUsed()

Deprecated.

Description copied from interface: Accountable

Return the memory usage of this object in bytes. Negative values are illegal.

Specified by:

ramBytesUsed in interface Accountable

getCount

public long getCount()

Deprecated.

Description copied from class: Lookup

Get the number of entries the lookup was built with

Specified by:

getCount in class Lookup

Returns:

total number of suggester entries