Indicating an index is as easy as providing an annotation to the attribute. An index annotation must be accompanied by an @Attribute annotation. You cannot annotate a relationship.
Indexes can have the following properties:
| Attribute | Type | Default | Description |
|---|---|---|---|
| loadFactor | Integer | 5 (Value from 1-10) | Load Factor indicates the scalability of the index. If you define 10, it is built to handle large data sets and not degrade over time. Alternatively 1 is for smallest data sets. The lower the load factor, the faster it will be for small amounts of records. This will also reduce the amount of disk space used. |
Indexes can have the following types:
| Type | Description | Min/Max |
|---|---|---|
String |
UTF-8 Encoded Text | |
Integer |
Mutable Integer(can be null) | -2147483648 to 2147483647 |
int |
Immutable Integer(cannot be null) | -2147483648 to 2147483647 |
Long |
Mutable Long(can be null) | -9223372036854775808 to 9223372036854775807 |
long |
Immutable Long(cannot be null) | -9223372036854775808 to 9223372036854775807 |
Double |
Mutable Double(can be null) | 4.9E-324 to 1.7976931348623157E308 |
double |
Immutable Double(cannot be null) | 4.9E-324 to 1.7976931348623157E308 |
Boolean |
Mutable Boolean(can be null) | true/false |
boolean |
Immutable Boolean(cannot be null) | true/false |
Date |
Java Date Time | Sun Dec 02 16:47:04 GMT 292269055 - Sun Aug 17 07:12:55 GMT 292278994 |
Float |
Java Float primitive or mutable | 0.0 |
Byte |
Java Byte primitive or mutable | 0 |
Short |
Java Short primitive or mutable | 0 |
Managed Entity |
The entity must implement Comparable. | null |
Enum |
Custom enum value. | null |
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