-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
UniqueLuceneIndexPopulator.java
81 lines (72 loc) · 2.78 KB
/
UniqueLuceneIndexPopulator.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
/*
* Copyright (c) 2002-2017 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.api.impl.schema.populator;
import java.io.IOException;
import org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException;
import org.neo4j.kernel.api.impl.schema.SchemaIndex;
import org.neo4j.kernel.api.index.IndexEntryUpdate;
import org.neo4j.kernel.api.schema.IndexDescriptor;
import org.neo4j.kernel.api.index.IndexUpdater;
import org.neo4j.kernel.api.index.PropertyAccessor;
import org.neo4j.kernel.impl.api.index.sampling.UniqueIndexSampler;
import org.neo4j.storageengine.api.schema.IndexSample;
/**
* A {@link LuceneIndexPopulator} used for unique Lucene schema indexes.
* Performs sampling using {@link UniqueIndexSampler}.
* Verifies uniqueness of added and changed values using
* {@link SchemaIndex#verifyUniqueness(PropertyAccessor, int)} method.
*/
public class UniqueLuceneIndexPopulator extends LuceneIndexPopulator
{
private final int propertyKeyId;
private final UniqueIndexSampler sampler;
public UniqueLuceneIndexPopulator( SchemaIndex index, IndexDescriptor descriptor )
{
super( index );
//TODO: Composite index make lucene handel Composite indexes
this.propertyKeyId = descriptor.getPropertyKeyId();
this.sampler = new UniqueIndexSampler();
}
@Override
public void verifyDeferredConstraints( PropertyAccessor accessor ) throws IndexEntryConflictException, IOException
{
luceneIndex.verifyUniqueness( accessor, propertyKeyId );
}
@Override
public IndexUpdater newPopulatingUpdater( final PropertyAccessor accessor ) throws IOException
{
return new UniqueLuceneIndexPopulatingUpdater( writer, propertyKeyId, luceneIndex, accessor, sampler );
}
@Override
public void includeSample( IndexEntryUpdate update )
{
sampler.increment( 1 );
}
@Override
public void configureSampling( boolean onlineSampling )
{
// nothing to configure so far
}
@Override
public IndexSample sampleResult()
{
return sampler.result();
}
}