org.neo4j.index.impl.lucene
Class LuceneIndex<T extends PropertyContainer>

java.lang.Object
  org.neo4j.index.impl.lucene.LuceneIndex<T>

All Implemented Interfaces:

Index<T>, ReadableIndex<T>

public abstract class LuceneIndex<T extends PropertyContainer>
extends Object
implements Index<T>

Method Summary

void	add(T entity, String key, Object value) See Index.add(PropertyContainer, String, Object) for more generic documentation.
void	delete()
IndexHits<T>	get(String key, Object value)
protected abstract T	getById(long id)
Integer	getCacheCapacity(String key)
protected abstract long	getEntityId(T entity)
String	getName()
boolean	isWriteable()
protected abstract org.neo4j.index.impl.lucene.LuceneCommand	newAddCommand(PropertyContainer entity, String key, Object value)
protected abstract org.neo4j.index.impl.lucene.LuceneCommand	newRemoveCommand(PropertyContainer entity, String key, Object value)
IndexHits<T>	query(Object queryOrQueryObject)
protected IndexHits<T>	query(org.apache.lucene.search.Query query, String keyForDirectLookup, Object valueForDirectLookup, QueryContext additionalParametersOrNull)
IndexHits<T>	query(String key, Object queryOrQueryObject) queryOrQueryObject can be a String containing the query in Lucene syntax format, http://lucene.apache.org/java/3_0_2/queryparsersyntax.html.
void	remove(T entity)
void	remove(T entity, String key)
void	remove(T entity, String key, Object value) See Index.remove(PropertyContainer, String, Object) for more generic documentation.
void	setCacheCapacity(String key, int capacity)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.neo4j.graphdb.index.ReadableIndex

getEntityType

Method Detail

getName

public String getName()

Specified by:

getName in interface ReadableIndex<T extends PropertyContainer>

add

public void add(T entity,
                String key,
                Object value)

See Index.add(PropertyContainer, String, Object) for more generic documentation. Adds key/value to the entity in this index. Added values are searchable withing the transaction, but composite AND queries aren't guaranteed to return added values correctly within that transaction. When the transaction has been committed all such queries are guaranteed to return correct results.

Specified by:

add in interface Index<T extends PropertyContainer>

Parameters:

entity - the entity (i.e Node or Relationship) to associate the key/value pair with.

key - the key in the key/value pair to associate with the entity.

value - the value in the key/value pair to associate with the entity.

remove

public void remove(T entity,
                   String key,
                   Object value)

See Index.remove(PropertyContainer, String, Object) for more generic documentation. Removes key/value to the entity in this index. Removed values are excluded withing the transaction, but composite AND queries aren't guaranteed to exclude removed values correctly within that transaction. When the transaction has been committed all such queries are guaranteed to return correct results.

Specified by:

remove in interface Index<T extends PropertyContainer>

Parameters:

entity - the entity (i.e Node or Relationship) to dissociate the key/value pair from.

key - the key in the key/value pair to dissociate from the entity.

value - the value in the key/value pair to dissociate from the entity.

remove

public void remove(T entity,
                   String key)

Specified by:

remove in interface Index<T extends PropertyContainer>

remove

public void remove(T entity)

Specified by:

remove in interface Index<T extends PropertyContainer>

delete

public void delete()

Specified by:

delete in interface Index<T extends PropertyContainer>

get

public IndexHits<T> get(String key,
                        Object value)

Specified by:

get in interface ReadableIndex<T extends PropertyContainer>

query

public IndexHits<T> query(String key,
                          Object queryOrQueryObject)

queryOrQueryObject can be a String containing the query in Lucene syntax format, http://lucene.apache.org/java/3_0_2/queryparsersyntax.html. Or it can be a Query object. If can even be a QueryContext object which can contain a query (String or Query) and additional parameters, such as Sort. Because of performance issues, including uncommitted transaction modifications in the result is disabled by default, but can be enabled using QueryContext.tradeCorrectnessForSpeed().

Specified by:

query in interface ReadableIndex<T extends PropertyContainer>

query

public IndexHits<T> query(Object queryOrQueryObject)

Specified by:

query in interface ReadableIndex<T extends PropertyContainer>

See Also:

query(String, Object)

query

protected IndexHits<T> query(org.apache.lucene.search.Query query,
                             String keyForDirectLookup,
                             Object valueForDirectLookup,
                             QueryContext additionalParametersOrNull)

isWriteable

public boolean isWriteable()

Specified by:

isWriteable in interface ReadableIndex<T extends PropertyContainer>

setCacheCapacity

public void setCacheCapacity(String key,
                             int capacity)

getCacheCapacity

public Integer getCacheCapacity(String key)

getById

protected abstract T getById(long id)

getEntityId

protected abstract long getEntityId(T entity)

newAddCommand

protected abstract org.neo4j.index.impl.lucene.LuceneCommand newAddCommand(PropertyContainer entity,
                                                                           String key,
                                                                           Object value)

newRemoveCommand

protected abstract org.neo4j.index.impl.lucene.LuceneCommand newRemoveCommand(PropertyContainer entity,
                                                                              String key,
                                                                              Object value)