OSystemDatabase (OrientDB 3.0.44 API)

public class OSystemDatabase
extends Object

Constructors
Constructor and Description
`OSystemDatabase(OServer server)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`createCluster(String className, String clusterName)` Adds the specified cluster to the class, if it doesn't already exist.
`Object`	`execute(OCallable<Object,OResultSet> callback, String sql, Object... args)`
`void`	`executeInDBScope(OCallable<Void,ODatabase> callback)`
`<T> T`	`executeWithDB(OCallable<T,ODatabase> callback)`
`boolean`	`exists()`
`String`	`getServerId()`
`String`	`getSystemDatabaseName()`
`String`	`getSystemDatabasePath()`
`ODatabaseDocumentInternal`	`openSystemDatabase()` Opens the System Database and returns an ODatabaseDocumentInternal object.
`ODocument`	`save(ODocument document)`
`ODocument`	`save(ODocument document, String clusterName)`

public OSystemDatabase(OServer server)

public void createCluster(String className,
                          String clusterName)

Adds the specified cluster to the class, if it doesn't already exist.

openSystemDatabase
```
public ODatabaseDocumentInternal openSystemDatabase()
```
Opens the System Database and returns an ODatabaseDocumentInternal object. The caller is responsible for retrieving any ThreadLocal-stored database before openSystemDatabase() is called and restoring it after the database is closed.

public Object execute(OCallable<Object,OResultSet> callback,
                      String sql,
                      Object... args)

public ODocument save(ODocument document)

public ODocument save(ODocument document,
                      String clusterName)

public void executeInDBScope(OCallable<Void,ODatabase> callback)

public <T> T executeWithDB(OCallable<T,ODatabase> callback)

Class OSystemDatabase