Package com.gengoai.collection.disk

Class MapDBHandle

java.lang.Object

com.gengoai.collection.disk.MapDBHandle

All Implemented Interfaces:

Serializable, AutoCloseable

public final class MapDBHandle
extends Object
implements Serializable, AutoCloseable

Wraps and manages a MapDB DB store.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
MapDBHandle(@NonNull Resource resource, boolean compressed)	Instantiates a new MapDBHandle.

Method Summary

Modifier and Type	Method	Description
void	close()
void	commit()	Commits changes made to the database
void	delete()	Deletes the database files.
org.mapdb.Atomic.Boolean	getBoolean(String name)	Gets the global boolean value with the given name
org.mapdb.Atomic.Integer	getInteger(String name)	Gets global integer value with the given name.
org.mapdb.Atomic.Long	getLong(String name)	Gets the global long value with the given name.
protected org.mapdb.DB	getStore()	Gets the database store object
org.mapdb.Atomic.String	getString(String name)	Gets the gloabl string value for the given name.
<E> org.mapdb.Atomic.Var<E>	getVar(String name)	Gets the global value of the given variable name.
boolean	isClosed()	Is closed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapDBHandle

public MapDBHandle(@NonNull
                   @NonNull Resource resource,
                   boolean compressed)

Instantiates a new MapDBHandle.

Parameters:

resource - the file containing the MapDB

compressed - True if compression is used

Method Detail

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

commit

public void commit()

Commits changes made to the database

delete

public void delete()

Deletes the database files.

getBoolean

public org.mapdb.Atomic.Boolean getBoolean(String name)

Gets the global boolean value with the given name

Parameters:

name - the name

Returns:

the boolean

getInteger

public org.mapdb.Atomic.Integer getInteger(String name)

Gets global integer value with the given name.

Parameters:

name - the name

Returns:

the integer

getLong

public org.mapdb.Atomic.Long getLong(String name)

Gets the global long value with the given name.

Parameters:

name - the name

Returns:

the long

getStore

protected org.mapdb.DB getStore()

Gets the database store object

Returns:

the store

getString

public org.mapdb.Atomic.String getString(String name)

Gets the gloabl string value for the given name.

Parameters:

name - the name

Returns:

the string

getVar

public <E> org.mapdb.Atomic.Var<E> getVar(String name)

Gets the global value of the given variable name.

Type Parameters:

E - the type parameter

Parameters:

name - the name

Returns:

the var

isClosed

public boolean isClosed()

Is closed.

Returns:

True if closed, False if not