oracle.pg.hbase.index.lucene

Class HBaseLuceneVertexAutoIndex

java.lang.Object

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

oracle.pg.text.lucene.LuceneAutoIndex<Vertex>

oracle.pg.text.lucene.LuceneVertexAutoIndex

oracle.pg.hbase.index.lucene.HBaseLuceneVertexAutoIndex

All Implemented Interfaces:

Index<Vertex>, OracleAutoIndex<Vertex>, OracleIndex<Vertex>

public class HBaseLuceneVertexAutoIndex
extends LuceneVertexAutoIndex

This class extends LuceneVertexAutoIndex to handle an automatic index on Vertex objects over an Apache HBase backend

Field Summary

Fields inherited from interface oracle.pg.text.OracleIndex

EDGE_ID_PROP, EDGE_LABEL_PROP, END_NODE_ID_PROP, START_NODE_ID_PROP, TYPE_DT_BOOL, TYPE_DT_DATE, TYPE_DT_DOUBLE, TYPE_DT_FLOAT, TYPE_DT_INTEGER, TYPE_DT_SERIALIZABLE, TYPE_DT_STRING, VERTEX_ID_PROP

Constructor Summary

Constructors

Constructor and Description
HBaseLuceneVertexAutoIndex(String indexName, OraclePropertyGraph oraclePropertyGraph, Parameter<String,Object>[] indexParameters, boolean erase) Constructs a new HBaseLuceneVertexAutoIndex object.

Method Summary

Methods

Modifier and Type	Method and Description
void	closeConnectionsArray() Closes the connection array.
Object[]	getConnectionsArray() Gets the connection array.
Iterable<Vertex>[]	getElementsFromPG(String[] keys, Object[] connArray, int iStartSplitId) Gets an Iterable<Vertex> of vertices from the associated property graph, matching the specified keys.
int	getPartitionsNumber() Gets the number of partitions of the vertex table for the associated property graph.

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

get, getDocIdentifier, getElementsFromPG, getElementsFromPG, getElementsFromPG, getPartitioned

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

close, containsIndexedKey, getIndexedKeys, indexElements, indexElementsPartitioned, loadIndexedKeys, put, put, reindexElements, reindexElements, reindexElements, reindexElementsNoPartitioned, reindexElementsPartitioned, reindexElementsPartitioned, reindexElementsPartitioned

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

add, addToDeleteCache, buildSearchTerm, buildSearchTerm, clearIndex, commit, count, count, count, deleteExistingDirectories, dropIndex, get, get, getDirectory, getDirectoryName, getGraphName, getIndexClass, getIndexName, getIndexParameters, getOracleDirectory, getOracleIndexParameters, getOracleSearcherManager, getParameters, getPartitioned, getSearcherFactory, getTotalShards, isAutoIndex, isDelBatchEmpty, isDelBatchFull, isUpdatesBatchEmpty, isUpdatesBatchFull, 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, indexElementsPartitioned, loadIndexedKeys, reindexElements, reindexElements, reindexElements, reindexElementsNoPartitioned, reindexElementsPartitioned, reindexElementsPartitioned, 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, isDelBatchEmpty, isDelBatchFull, isUpdatesBatchEmpty, isUpdatesBatchFull, query, refreshIndex, remove, removeAll

Methods inherited from interface com.tinkerpop.blueprints.Index

count, get, getIndexName, put, query, remove

Constructor Detail

HBaseLuceneVertexAutoIndex

public HBaseLuceneVertexAutoIndex(String indexName,
                          OraclePropertyGraph oraclePropertyGraph,
                          Parameter<String,Object>[] indexParameters,
                          boolean erase)

Constructs a new HBaseLuceneVertexAutoIndex 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<Vertex>

Specified by:

closeConnectionsArray in class LuceneAutoIndex<Vertex>

getConnectionsArray

public Object[] getConnectionsArray()
                             throws IOException

Gets the connection array.

Specified by:

getConnectionsArray in interface OracleAutoIndex<Vertex>

Specified by:

getConnectionsArray in class LuceneAutoIndex<Vertex>

Returns:

an array of Connection objects

Throws:

IOException

getElementsFromPG

public Iterable<Vertex>[] getElementsFromPG(String[] keys,
                                   Object[] connArray,
                                   int iStartSplitId)

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

Specified by:

getElementsFromPG in interface OracleAutoIndex<Vertex>

Specified by:

getElementsFromPG in class LuceneAutoIndex<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. Each element of this array must be an instance of HConnection

iStartSplitId - the starting split used for querying.

Returns:

an Iterable<Vertex> object.

getPartitionsNumber

public int getPartitionsNumber()

Gets the number of partitions of the vertex table for the associated property graph.

Specified by:

getPartitionsNumber in interface OracleAutoIndex<Vertex>

Specified by:

getPartitionsNumber in class LuceneAutoIndex<Vertex>

Returns:

the number of partitions of the element's table.