-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
ConstraintDescriptorFactory.java
93 lines (82 loc) · 3.82 KB
/
ConstraintDescriptorFactory.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
82
83
84
85
86
87
88
89
90
91
92
93
/*
* 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.schema_new.constaints;
import org.neo4j.kernel.api.schema_new.LabelSchemaDescriptor;
import org.neo4j.kernel.api.schema_new.RelationTypeSchemaDescriptor;
import org.neo4j.kernel.api.schema_new.SchemaComputer;
import org.neo4j.kernel.api.schema_new.SchemaDescriptor;
import org.neo4j.kernel.api.schema_new.SchemaDescriptorFactory;
import org.neo4j.kernel.api.schema_new.SchemaUtil;
import static java.lang.String.format;
public class ConstraintDescriptorFactory
{
public static NodeExistenceConstraintDescriptor existsForLabel( int labelId, int... propertyIds )
{
return new NodeExistenceConstraintDescriptor( SchemaDescriptorFactory.forLabel( labelId, propertyIds ) );
}
public static RelExistenceConstraintDescriptor existsForRelType( int relTypeId, int... propertyIds )
{
return new RelExistenceConstraintDescriptor( SchemaDescriptorFactory.forRelType( relTypeId, propertyIds ) );
}
public static UniquenessConstraintDescriptor uniqueForLabel( int labelId, int... propertyIds )
{
return new UniquenessConstraintDescriptor( SchemaDescriptorFactory.forLabel( labelId, propertyIds ) );
}
public static ConstraintDescriptor existsForSchema( SchemaDescriptor schema )
{
return schema.computeWith( convertToExistenceConstraint );
}
public static UniquenessConstraintDescriptor uniqueForSchema( SchemaDescriptor schema )
{
return schema.computeWith( convertToUniquenessConstraint );
}
private static SchemaComputer<ConstraintDescriptor> convertToExistenceConstraint =
new SchemaComputer<ConstraintDescriptor>()
{
@Override
public ConstraintDescriptor computeSpecific( LabelSchemaDescriptor schema )
{
return new NodeExistenceConstraintDescriptor( schema );
}
@Override
public ConstraintDescriptor computeSpecific( RelationTypeSchemaDescriptor schema )
{
return new RelExistenceConstraintDescriptor( schema );
}
};
private static SchemaComputer<UniquenessConstraintDescriptor> convertToUniquenessConstraint =
new SchemaComputer<UniquenessConstraintDescriptor>()
{
@Override
public UniquenessConstraintDescriptor computeSpecific( LabelSchemaDescriptor schema )
{
return new UniquenessConstraintDescriptor( schema );
}
@Override
public UniquenessConstraintDescriptor computeSpecific( RelationTypeSchemaDescriptor schema )
{
throw new UnsupportedOperationException(
format( "Cannot create uniqueness constraint for schema '%s' of type %s",
schema.userDescription( SchemaUtil.idTokenNameLookup ),
schema.getClass().getSimpleName()
) );
}
};
}