jadex.bridge.service.search

Class Indexer<T>

java.lang.Object

jadex.bridge.service.search.Indexer<T>

public class Indexer<T>
extends java.lang.Object

Indexer for values.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	includenull Include null values during indexing.
protected java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.Set<T>>>	indexedvalues The index of published values.
static int	INTERSECT_CUTOFF Cutoff value for building index set intersections.
protected IKeyExtractor<T>	keyextractor Service key extractor.
protected java.util.Set<T>	values All values.

Constructor Summary

Constructors

Constructor and Description
Indexer(IKeyExtractor<T> keyextractor, boolean includenull, java.lang.String... indextypes) Create a new ServiceIndexer.

Method Summary

Modifier and Type	Method and Description
void	addValue(T value) Add a value to the indexer.
void	clear() Clears all contained values.
java.util.Set<T>	getAllValues() Returns all values.
IKeyExtractor<T>	getKeyExtractor() Gets the key extractor used by the service.
java.util.Set<T>	getValues(java.util.List<Tuple3<java.lang.String,java.lang.String[],java.lang.Boolean>> spec) Get values per specification.
java.util.Set<T>	getValues(java.lang.String keytype, java.lang.String key) Get values per type.
java.util.Set<T>	getValuesInverted(java.util.List<Tuple2<java.lang.String,java.lang.String[]>> spec) Get values per specification (multivalues considered as OR match, when queries are the values).
boolean	isIndexed(java.lang.String indexname) Test if a property is indexed per name.
static void	main(java.lang.String[] args) Main for testing.
boolean	match(java.util.List<Tuple3<java.lang.String,java.lang.String[],java.lang.Boolean>> spec, T value) Tests if the search specification matches a value (spec=query).
boolean	matchOr(java.util.List<Tuple2<java.lang.String,java.lang.String[]>> spec, T value) Tests if the search specification matches a value (spec=service, value=query).
void	removeValue(T value) Remove a value from the indexer.
void	updateIndex(java.lang.String indexname) Update an index for all values.

Methods inherited from class java.lang.Object

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

Field Detail

INTERSECT_CUTOFF

public static final int INTERSECT_CUTOFF

Cutoff value for building index set intersections.

See Also:

Constant Field Values

keyextractor

protected IKeyExtractor<T> keyextractor

Service key extractor.

values

protected java.util.Set<T> values

All values.

indexedvalues

protected java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.Set<T>>> indexedvalues

The index of published values. First string is the index key name.

includenull

protected boolean includenull

Include null values during indexing.

Constructor Detail

Indexer

public Indexer(IKeyExtractor<T> keyextractor,
               boolean includenull,
               java.lang.String... indextypes)

Create a new ServiceIndexer.

Method Detail

isIndexed

public boolean isIndexed(java.lang.String indexname)

Test if a property is indexed per name.

Parameters:

indexname - The index name.

Returns:

True, if is indexed.

getValues

public java.util.Set<T> getValues(java.util.List<Tuple3<java.lang.String,java.lang.String[],java.lang.Boolean>> spec)

Get values per specification. 'And' relates to inter-term, i.e. example type=ICMS, tags=a,b means an object must have both fulfilled. For multi-valued intra-term values it can be 'and' or 'or' as well.

Parameters:

spec - The key values (first element is key name and array are values)

Returns:

The values matching the spec.

getValuesInverted

public java.util.Set<T> getValuesInverted(java.util.List<Tuple2<java.lang.String,java.lang.String[]>> spec)

Get values per specification (multivalues considered as OR match, when queries are the values).

Parameters:

spec - The key values (first element is key name and array are values)

Returns:

The values matching the spec.

getValues

public java.util.Set<T> getValues(java.lang.String keytype,
                                  java.lang.String key)

Get values per type.

Parameters:

keytype - the key type.

key - The key value.

Returns:

The values matching the key.

getAllValues

public java.util.Set<T> getAllValues()

Returns all values.

Returns:

All values.

addValue

public void addValue(T value)

Add a value to the indexer.

Parameters:

value - The value.

removeValue

public void removeValue(T value)

Remove a value from the indexer.

Parameters:

value - The value.

match

public boolean match(java.util.List<Tuple3<java.lang.String,java.lang.String[],java.lang.Boolean>> spec,
                     T value)

Tests if the search specification matches a value (spec=query).

Parameters:

value - The value.

Returns:

True, if the value matches.

matchOr

public boolean matchOr(java.util.List<Tuple2<java.lang.String,java.lang.String[]>> spec,
                       T value)

Tests if the search specification matches a value (spec=service, value=query).

Parameters:

value - The value.

Returns:

True, if the value matches.

getKeyExtractor

public IKeyExtractor<T> getKeyExtractor()

Gets the key extractor used by the service.

Returns:

The key extractor.

clear

public void clear()

Clears all contained values.

updateIndex

public void updateIndex(java.lang.String indexname)

Update an index for all values.

main

public static void main(java.lang.String[] args)

Main for testing.