oracle.pg.rdbms.index.lucene

Class RDBMSLuceneVertexAutoIndex

java.lang.Object

oracle.pg.text.lucene.LuceneIndex<T>

oracle.pg.text.lucene.LuceneAutoIndex<com.tinkerpop.blueprints.Vertex>

oracle.pg.text.lucene.LuceneVertexAutoIndex

oracle.pg.rdbms.index.lucene.RDBMSLuceneVertexAutoIndex

All Implemented Interfaces:

com.tinkerpop.blueprints.Index<com.tinkerpop.blueprints.Vertex>, OracleAutoIndex<com.tinkerpop.blueprints.Vertex>, OracleIndex<com.tinkerpop.blueprints.Vertex>

public class RDBMSLuceneVertexAutoIndex
extends LuceneVertexAutoIndex

This class extends the functions defined in LuceneVertexAutoIndex to handle an automatic index on vertices using Apache Lucene.

Field Summary

Fields inherited from interface oracle.pg.text.OracleIndex

EDGE_ID_PROP, EDGE_LABEL_PROP, END_NODE_ID_PROP, m_dtValues, START_NODE_ID_PROP, TYPE_DT_BOOL, TYPE_DT_BYTE, TYPE_DT_CHAR, TYPE_DT_DATE, TYPE_DT_DOUBLE, TYPE_DT_FLOAT, TYPE_DT_INTEGER, TYPE_DT_JSON, TYPE_DT_LONG, TYPE_DT_SERIALIZABLE, TYPE_DT_SHORT, TYPE_DT_SPATIAL, TYPE_DT_STRING, TYPE_DT_URI, VERTEX_ID_PROP

Constructor Summary

Constructors

Constructor and Description
RDBMSLuceneVertexAutoIndex(java.lang.String indexName, OraclePropertyGraph oraclePropertyGraph, com.tinkerpop.blueprints.Parameter<java.lang.String,java.lang.Object>[] indexParameters, boolean erase) Constructs a new RDBMSLuceneVertexAutoIndex object.

Method Summary

Modifier and Type	Method and Description
void	closeConnectionsArray() Closes the connection array.
java.lang.Object[]	getConnectionsArray() Gets the connection array.
java.lang.Iterable<com.tinkerpop.blueprints.Vertex>[]	getElementsFromPG(java.lang.String[] keys, java.lang.Object[] connArray, int partitionId) Gets an Iterable<Vertex> of vertices from the associated property graph, matching the specified keys.
OracleDirectory	getOracleDirectory() Gets the Oracle Directory storing all index data.
OraclePool[]	getOraclePool(java.util.Map<java.lang.String,java.lang.Object> indexParams) Get the Oracle Pool associated to the specified index parameters
int	getPartitionsNumber() Gets the number of HASH partitions of the vertices table for the associated property graph.
void	refreshIndex(long lStartSCN, long lEndSCN) Auto-refresh an index based on all insert/deletes between the specified start and end SCN.
void	reindexElementsPartitioned(java.lang.String[] keys) Re-index all elements over a non-partitioned graph.

Methods inherited from class oracle.pg.text.lucene.LuceneVertexAutoIndex

get, get, getDocIdentifier, getPartitioned, getPartitioned

Methods inherited from class oracle.pg.text.lucene.LuceneAutoIndex

close, containsIndexedKey, getIndexedKeys, indexElements, put, put, reindexElements, reindexElementsPartitioned

Methods inherited from class oracle.pg.text.lucene.LuceneIndex

add, appendDatatypesSuffixToKey, appendDatatypesSuffixToValue, buildSearchTerm, buildSearchTerm, buildSearchTermObject, clearIndex, commit, count, count, count, dropIndex, get, get, getDirectory, getDirectoryName, getGraphName, getIndexClass, getIndexName, getIndexParameters, getOracleIndexParameters, getOracleSearcherManager, getOracleSearcherManager, getParameters, getPartitioned, getSearcherFactory, getTotalShards, isAutoIndex, query, query, remove, remove, remove, remove, removeAll, removeAll

Methods inherited from class java.lang.Object

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

Methods inherited from interface oracle.pg.text.OracleAutoIndex

containsIndexedKey, get, getIndexedKeys, indexElements, reindexElements, reindexElementsPartitioned

Methods inherited from interface oracle.pg.text.OracleIndex

add, buildSearchTerm, buildSearchTerm, clearIndex, close, commit, count, count, dropIndex, getDirectoryName, getGraphName, getIndexClass, getOracleIndexParameters, getParameters, getPartitioned, getTotalShards, query, remove, removeAll

Methods inherited from interface com.tinkerpop.blueprints.Index

count, get, getIndexName, put, query, remove

Constructor Detail

RDBMSLuceneVertexAutoIndex

public RDBMSLuceneVertexAutoIndex(java.lang.String indexName,
                                  OraclePropertyGraph oraclePropertyGraph,
                                  com.tinkerpop.blueprints.Parameter<java.lang.String,java.lang.Object>[] indexParameters,
                                  boolean erase)

Constructs a new RDBMSLuceneVertexAutoIndex object.

Parameters:

indexName - the name of the index

oraclePropertyGraph - an OraclePropertyGraph object.

indexParameters - a collection of parameters for the underlying index implementation.

erase - a boolean specifying if the index should be cleared at the beginning.

Method Detail

closeConnectionsArray

public void closeConnectionsArray()

Closes the connection array.

Specified by:

closeConnectionsArray in interface OracleAutoIndex<com.tinkerpop.blueprints.Vertex>

Specified by:

closeConnectionsArray in class LuceneAutoIndex<com.tinkerpop.blueprints.Vertex>

getConnectionsArray

public java.lang.Object[] getConnectionsArray()
                                       throws java.sql.SQLException

Gets the connection array.

Specified by:

getConnectionsArray in interface OracleAutoIndex<com.tinkerpop.blueprints.Vertex>

Specified by:

getConnectionsArray in class LuceneAutoIndex<com.tinkerpop.blueprints.Vertex>

Returns:

an array of Connection objects

Throws:

java.sql.SQLException

getElementsFromPG

public java.lang.Iterable<com.tinkerpop.blueprints.Vertex>[] getElementsFromPG(java.lang.String[] keys,
                                                                               java.lang.Object[] connArray,
                                                                               int partitionId)

Gets an Iterable<Vertex> of vertices from the associated property graph, matching the specified keys.

Specified by:

getElementsFromPG in interface OracleAutoIndex<com.tinkerpop.blueprints.Vertex>

Specified by:

getElementsFromPG in class LuceneAutoIndex<com.tinkerpop.blueprints.Vertex>

Parameters:

keys - a list of the keys to be queried over the property graph.

connArray - a Connection array used for concurrent querying inside the Oracle property graph.

partitionId - the starting partition used for querying.

Returns:

an Iterable<Vertex> object.

getOracleDirectory

public OracleDirectory getOracleDirectory()

Gets the Oracle Directory storing all index data. This directory is obtained based on the configurations specified in the index parameters.

Overrides:

getOracleDirectory in class LuceneIndex<com.tinkerpop.blueprints.Vertex>

Returns:

an OracleDirectory object.

getOraclePool

public OraclePool[] getOraclePool(java.util.Map<java.lang.String,java.lang.Object> indexParams)

Get the Oracle Pool associated to the specified index parameters

Returns:

an OraclePool object.

getPartitionsNumber

public int getPartitionsNumber()

Gets the number of HASH partitions of the vertices table for the associated property graph.

Specified by:

getPartitionsNumber in interface OracleAutoIndex<com.tinkerpop.blueprints.Vertex>

Specified by:

getPartitionsNumber in class LuceneAutoIndex<com.tinkerpop.blueprints.Vertex>

Returns:

the number of HASH partitions of the element's table.

refreshIndex

public void refreshIndex(long lStartSCN,
                         long lEndSCN)

Auto-refresh an index based on all insert/deletes between the specified start and end SCN.

Specified by:

refreshIndex in interface OracleIndex<com.tinkerpop.blueprints.Vertex>

Specified by:

refreshIndex in class LuceneIndex<com.tinkerpop.blueprints.Vertex>

Parameters:

lStartSCN - start SCN value. A NULL value will be treated as MINVALUE to the underlying Oracle Database.

lEndSCN - end SCN value. A NULL value will be treated as MAXVALUE to the underlying Oracle Database.

reindexElementsPartitioned

public void reindexElementsPartitioned(java.lang.String[] keys)

Re-index all elements over a non-partitioned graph.

Specified by:

reindexElementsPartitioned in interface OracleAutoIndex<com.tinkerpop.blueprints.Vertex>

Overrides:

reindexElementsPartitioned in class LuceneAutoIndex<com.tinkerpop.blueprints.Vertex>

Parameters:

keys - an array of indexed keys