Supported Types

OrientDB supports several types natively. Below is the complete table.

#id Type Description Java type Minimum
Maximum		 Auto-conversion from/to
0 Boolean Handles only the values True or False java.lang.Boolean or boolean 0
1		 String
1 Integer 32-bit signed Integers java.lang.Integer or int -2,147,483,648
+2,147,483,647		 Any Number, String
2 Short Small 16-bit signed integers java.lang.Short or short -32,768
32,767		 Any Number, String
3 Long Big 64-bit signed integers java.lang.Long or long -263
+263-1		 Any Number, String
4 Float Decimal numbers java.lang.Float or float 2-149
(2-2-23)*2127		 Any Number, String
5 Double Decimal numbers with high precision java.lang.Double or double 2-1074
(2-2-52)*21023		 Any Number, String
6 Datetime Any date with the precision up to milliseconds. To know more about it, look at Managing Dates java.util.Date -
1002020303		 Date, Long, String
7 String Any string as alphanumeric sequence of chars java.lang.String -
-		 -
8 Binary Can contain any value as byte array byte[] 0
2,147,483,647		 String
9 Embedded The Record is contained inside the owner. The contained Record has no RecordId ORecord -
-		 ORecord
10 Embedded list The Records are contained inside the owner. The contained records have no RecordIds and are reachable only by navigating the owner record List<Object> 0
41,000,000 items		 String
11 Embedded set The Records are contained inside the owner. The contained Records have no RecordId and are reachable only by navigating the owner record Set<Object> 0
41,000,000 items		 String
12 Embedded map The Records are contained inside the owner as values of the entries, while the keys can only be Strings. The contained ords e no RecordIds and are reachable only by navigating the owner Record Map<String, ORecord> 0
41,000,000 items		 Collection<? extends ORecord<?>>, String
13 Link Link to another Record. It’s a common one-to-one relationship ORID, <? extends ORecord> 1:-1
32767:2^63-1		 String
14 Link list Links to other Records. It’s a common one-to-many relationship where only the RecordIds are stored List<? extends ORecord 0
41,000,000 items		 String
15 Link set Links to other Records. It’s a common one-to-many relationship Set<? extends ORecord> 0
41,000,000 items		 Collection<? extends ORecord>, String
16 Link map Links to other Records as value of the entries, while keys can only be Strings. It’s a common One-to-Many Relationship. Only the RecordIds are stored Map<String,
    ? extends Record>		 0
41,000,000 items		 String
17 Byte Single byte. Useful to store small 8-bit signed integers java.lang.Byte or byte -128
+127		 Any Number, String
18 Transient Any value not stored on database
19 Date Any date as year, month and day. To know more about it, look at Managing Dates java.util.Date -- Date, Long, String
20 Custom used to store a custom type providing the marshall and unmarshall methods OSerializableStream 0
X		 -
21 Decimal Decimal numbers without rounding java.math.BigDecimal ?
?		 Any Number, String
22 LinkBag List of RecordIds as spec RidBag ORidBag ?
?		 -
23 Any Not determinated type, used to specify Collections of mixed type, and null - - -