org.gridgain.grid.resources
Annotation Type GridSpringResource

@Documented
@Retention(value=RUNTIME)
@Target(value={METHOD,FIELD})
@Apache20LicenseCompatible
public @interface GridSpringResource

Annotates a field or a setter method for injection of resource from Spring ApplicationContext. Use it whenever you would like to inject resources specified in Spring application context of XML configuration.

Logger can be injected into instances of following classes:

• GridTask
• GridJob
• GridSpi
• GridLifecycleBean
• @GridUserResource

Resource Name

This is a mandatory parameter. Resource name will be used to access Spring resources from Spring ApplicationContext or XML configuration.

Note that Spring resources cannot be peer-class-loaded. They must be available in every ApplcationContext or Spring XML configuration on every grid node. For this reason, if injected into a Serializable class, they must be declared as transient.

The lifecycle of Spring resources is controled by Spring container.

Examples

Here is how injection would typically happen:

 public class MyGridJob implements GridJob {
      ...
      @GridSpringResource(resourceName = "bean-name")
      private transient MyUserBean rsrc;
      ...
      @GridUserResource
      private transient MyUserResource rsrc;
      ...
  }
 

or

 public class MyGridJob implements GridJob {
     ...
     private transient MyUserBean rsrc = null;
     ...
     @GridSpringResource(resourceName = "bean-name")
     public void setMyUserBean(MyUserBean rsrc) {
          this.rsrc = rsrc;
     }
     ...
 }
 

and user resource MyUserResource

 public class MyUserResource {
     ...
     @GridSpringResource(resourceName = "bean-name")
     private MyUserBean rsrc;
     ...
     // Inject logger (or any other resource).
     @GridLoggerResource
     private GridLogger log = null;

     // Inject grid instance (or any other resource).
     @GridInstanceResource
     private Grid grid = null;
     ...
 }
 

where spring bean resource class can look like this:

 public class MyUserBean {
     ...
 }
 

and Spring file

 <bean id="bean-name" class="my.foo.MyUserBean" singleton="true">
         ...
 </bean>
 

See Also:

Documentation
Email Support
Online Forums
Issue Tracking

Author: 2005-2008 Copyright © GridGain Systems. All Rights Reserved. ver. 2.1.0

	Nikita Ivanov, GridGain Systems nivanov@gridgain.com
	Dmitriy Setrakyan, GridGain Systems dsetrakyan@gridgain.com
	Alexander Magdenko, GridGain Systems amagdenko@gridgain.com
	Boris Suchodoev, GridGain Systems bsuchodoev@gridgain.com
	Denis Kharlamov, GridGain Systems dkharlamov@gridgain.com
	close

Required Element Summary

String

resourceName Resource bean name in provided ApplicationContext to look up a Spring bean.

Element Detail

resourceName

public abstract String resourceName

Resource bean name in provided ApplicationContext to look up a Spring bean.