com.gigaspaces.grid.space
Class SpaceHandler

java.lang.Object
  com.gigaspaces.grid.space.SpaceHandler

All Implemented Interfaces:

org.jini.rio.core.jsb.ServiceBeanFactory

public class SpaceHandler
extends java.lang.Object
implements org.jini.rio.core.jsb.ServiceBeanFactory

Provides support to create a GigaSpaces instance using SpaceFinder. This utility extracts properties from the ServiceBeanContext and derives the GigaSpace context for use with the SpaceFinder. The following properties are used to derive the SpaceFinder context.

The SpaceFinder is invoked using the following method:

 SpaceFinder.find(String spaceUrl,
                  IJSpace space,
                  Properties customProperties,
                  LifeCycle lifeCycle);
 

Parameter specifics :

• The spaceUrl parameter takes on the following format: "/./spaceName", where spaceName is derived as follows:
  If gs.space.url.arg.spaceName is declared, this value is used as the space name instead of the name of the <ServiceBean Name="name"> property
  
  
• The IJSpace parameter is always null
  
  
• The customProperties parameter is obtained from the declaration of <Parameter> elements in the deployment descriptor and other <ServiceBean> properties:
  
  
  • The gs.space.url.arg.groups is derived from the <Groups> element
    
    
  • If the schema declared as the value for the gs.space.url.arg.cluster_schema property contains the string partitioned-sync2backup, the following behavior is used:
    • The gs.space.url.arg.id is set to be the partition number, as determined by the suffix of the <ServiceBean Name="name"> property. This value is expected to be in the form of space-name.partition-number
    • The gs.space.url.arg.backup_id value is set to be the value of the instanceID (as determined from ServiceBeanConfig.getInstanceID()) -1, iff the instanceID > 0
    
    
  • If there is no schema declared, or it is not a partitioned-sync2backup, the following behavior is used:
    • The gs.space.url.arg.id is set to be the value of the instanceID
    
    
  • If the gs.space.url.arg.total_members property is not supplied, it is set to be the max between the number of planned services (as determined by the <Maintain> element) and the ScalingPolicyHandler.MaxServices property.
    
    
  • If the gs.space.url.arg.properties property is supplied and the property value starts with http://*/, the http:// value will be derived to be the configured codebase of the service
  
  
• The LifeCycle parameter is set to be the value obtained from the ServiceBeanManager.getDiscardManager()

See Also:

ServiceBeanFactory

Nested Class Summary

Nested classes/interfaces inherited from interface org.jini.rio.core.jsb.ServiceBeanFactory

org.jini.rio.core.jsb.ServiceBeanFactory.Created

Constructor Summary

SpaceHandler()

Method Summary

org.jini.rio.core.jsb.ServiceBeanFactory.Created

create(org.jini.rio.core.jsb.ServiceBeanContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

SpaceHandler

public SpaceHandler()

Method Detail

create

public org.jini.rio.core.jsb.ServiceBeanFactory.Created create(org.jini.rio.core.jsb.ServiceBeanContext context)
                                                        throws org.jini.rio.core.JSBInstantiationException

Specified by:

create in interface org.jini.rio.core.jsb.ServiceBeanFactory

Throws:

org.jini.rio.core.JSBInstantiationException

See Also:

ServiceBeanFactory.create(org.jini.rio.core.jsb.ServiceBeanContext)