ODatabaseDocument - countClass()
This method returns the number of records in a given database class.
Counting Records by Class
OrientDB organizes data by a database class, which is an instance of the OClass class. Using this method, you can retrieve a count of the number of records in a given database class.
Syntax
// METHOD 1
long ODatabaseDocument().countClass(String name)
// METHOD 2
long ODatabaseDocument().countClass(String name, Boolean isPolymorphic)
| Argument | Type | Description |
|---|---|---|
name |
String |
Defines the database class name |
isPolymorphic |
Boolean |
Defines whether the class has sub-classes |
Return Value
This method returns a Long instance that represents the number of records on the given database class.