com.j_spaces.core.filters

Class JSpaceStatistics

java.lang.Object

com.j_spaces.core.filters.JSpaceStatistics

All Implemented Interfaces:

ISpaceFilter

public class JSpaceStatistics
extends Object
implements ISpaceFilter

This space filter should be provide a space statistics information.

Since:

4.0

Author:

Michael Konnikov

Constructor Summary

Constructors

Constructor and Description
JSpaceStatistics()

Method Summary

Modifier and Type	Method and Description
void	close() Closes this filter, enabling the developer to clean open resources.
long	getPeriod()
Map<Integer,StatisticsContext>	getStatistics()
StatisticsContext	getStatistics(int operationCode)
void	init(IJSpace space, String filterId, String url, int priority) Initializes this filter.
void	process(SpaceContext context, ISpaceFilterEntry[] entries, int operationCode) This method is called by the engine when an event matching this filter's operation code occurs in the engine.
void	process(SpaceContext context, ISpaceFilterEntry subject, int operationCode) This method is called by the engine when an event matching this filter's operation code occurs in the space engine.
void	setPeriod(long period)
String[]	toStringArray()

Methods inherited from class java.lang.Object

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

Constructor Detail

JSpaceStatistics

public JSpaceStatistics()

Method Detail

init

public void init(IJSpace space,
                 String filterId,
                 String url,
                 int priority)

Description copied from interface: ISpaceFilter

Initializes this filter.

Specified by:

init in interface ISpaceFilter

Parameters:

space - an embedded proxy to the space that contain this filter.

filterId - the name of this filter.

url - The URL that was passed when this filter was created.

priority - defines the order in which filters are activated.

close

public void close()

Description copied from interface: ISpaceFilter

Closes this filter, enabling the developer to clean open resources.

Specified by:

close in interface ISpaceFilter

process

public void process(SpaceContext context,
                    ISpaceFilterEntry subject,
                    int operationCode)

Description copied from interface: ISpaceFilter

 This method is called by the engine when an event matching this filter's
  operation code occurs in the space engine.

 Only for SecurityFilter implementation: On SET_SECURITY operation code call
 SpaceContext.setSecurityContext().
 

Specified by:

process in interface ISpaceFilter

Parameters:

context - the Context passed by the caller, contains security context. some of the filters (like ON_INIT) will always receive a null context.

subject - the event that occurred.

operationCode - the operation that defines when this filter is activated. The operation codes are defined in FilterOperationCodes.

process

public void process(SpaceContext context,
                    ISpaceFilterEntry[] entries,
                    int operationCode)

Description copied from interface: ISpaceFilter

This method is called by the engine when an event matching this filter's operation code occurs in the engine.

Notice: This is a special case that is called only on update() only on AFTER_UPDATE.
Also on BEFORE_NOTIFY_TRIGGER and AFTER_NOTIFY_TRIGGER.

Specified by:

process in interface ISpaceFilter

Parameters:

context - the Context passed by the caller, contains security context. some of the filters (like ON_INIT) will always receive a null context.

entries - an array of two elements:

On AFTER_UPDATE: the first element represents the old entry while the second is the new entry.

On BEFORE_NOTIFY_TRIGGER and AFTER_NOTIFY_TRIGGER: the first element represents the entry while the second is the template.

operationCode - the operation that defines when this filter is activated. The operation codes are defined in FilterOperationCodes.

getStatistics

public StatisticsContext getStatistics(int operationCode)

getStatistics

public Map<Integer,StatisticsContext> getStatistics()

toStringArray

public String[] toStringArray()

getPeriod

public long getPeriod()

setPeriod

public void setPeriod(long period)