org.apache.directory.api.ldap.model.cursor

Class DefaultClosureMonitor

java.lang.Object

org.apache.directory.api.ldap.model.cursor.DefaultClosureMonitor

All Implemented Interfaces:

ClosureMonitor

public class DefaultClosureMonitor
extends Object
implements ClosureMonitor

A basic ClosureMonitor that simply uses a boolean for state and a cause exception. Note that we consciously chose not to synchronize close() operations with checks to see if the monitor state is closed because it costs to synchronize and it's OK for the Cursor not to stop immediately when close() is called.

Author:

Apache Directory Project

Field Summary

Fields

Modifier and Type	Field and Description
private Exception	cause If we get an exception, the cause is stored in this variable
private boolean	closed Tells if the monitor is closed or not

Constructor Summary

Constructors

Constructor and Description
DefaultClosureMonitor()

Method Summary

Modifier and Type	Method and Description
void	checkNotClosed() Checks if state of this ClosureMonitor is set to closed and if so, throws the causing Exception.
void	close() Sets monitor state to closed, and sets the cause to a CursorClosedException without an error message string.
void	close(Exception cause) Sets monitor state to closed, and sets the cause to a specific Exception.
void	close(String cause) Sets monitor state to closed, and sets the cause to a CursorClosedException with a specific error message string.
Exception	getCause() Gets the cause of the closure.
boolean	isClosed() Gets whether the state of this ClosureMonitor is set to closed.

Methods inherited from class java.lang.Object

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

Field Detail

closed

private boolean closed

Tells if the monitor is closed or not

cause

private Exception cause

If we get an exception, the cause is stored in this variable

Constructor Detail

DefaultClosureMonitor

public DefaultClosureMonitor()

Method Detail

close

public final void close()

Sets monitor state to closed, and sets the cause to a CursorClosedException without an error message string.

Specified by:

close in interface ClosureMonitor

close

public final void close(String cause)

Sets monitor state to closed, and sets the cause to a CursorClosedException with a specific error message string.

Specified by:

close in interface ClosureMonitor

Parameters:

cause - error message string

close

public final void close(Exception cause)

Sets monitor state to closed, and sets the cause to a specific Exception.

Specified by:

close in interface ClosureMonitor

Parameters:

cause - the exception to associate with the closure

getCause

public final Exception getCause()

Gets the cause of the closure.

Specified by:

getCause in interface ClosureMonitor

Returns:

the causing Exception

isClosed

public final boolean isClosed()

Gets whether the state of this ClosureMonitor is set to closed.

Specified by:

isClosed in interface ClosureMonitor

Returns:

true if state is closed, false if open

checkNotClosed

public void checkNotClosed()
                    throws CursorClosedException

Checks if state of this ClosureMonitor is set to closed and if so, throws the causing Exception.

Specified by:

checkNotClosed in interface ClosureMonitor

Throws:

CursorClosedException - the cause of the closure