org.gridgain.grid.marshaller.jdk

Class GridJdkMarshaller

java.lang.Object

org.gridgain.grid.marshaller.GridAbstractMarshaller

org.gridgain.grid.marshaller.jdk.GridJdkMarshaller

All Implemented Interfaces:

GridMarshaller

public class GridJdkMarshaller
extends GridAbstractMarshaller

Implementation of GridMarshaller based on JDK serialization mechanism.

Configuration

Mandatory

This marshaller has no mandatory configuration parameters.

Java Example

GridJdkMarshaller needs to be explicitly configured to override default GridOptimizedMarshaller.

 GridJdkMarshaller marshaller = new GridJdkMarshaller();

 GridConfiguration cfg = new GridConfiguration();

 // Override default marshaller.
 cfg.setMarshaller(marshaller);

 // Starts grid.
 G.start(cfg);
 

Spring Example

GridJdkMarshaller can be configured from Spring XML configuration file:

 <bean id="grid.custom.cfg" class="org.gridgain.grid.GridConfiguration" singleton="true">
     ...
     <property name="marshaller">
         <bean class="org.gridgain.grid.marshaller.jdk.GridJdkMarshaller"/>
     </property>
     ...
 </bean>
 

For information about Spring framework visit www.springframework.org

Injection Example

GridMarshaller can be injected in users task, job or SPI as following:

 public class MyGridJob implements GridComputeJob {
     ...
     @GridMarshallerResource
     private GridMarshaller marshaller;
     ...
 }
 

or

 public class MyGridJob implements GridComputeJob {
     ...
     private GridMarshaller marshaller;
     ...
     @GridMarshallerResource
     public void setMarshaller(GridMarshaller marshaller) {
         this.marshaller = marshaller;
     }
     ...
 }
 

Field Summary

Fields inherited from class org.gridgain.grid.marshaller.GridAbstractMarshaller

DFLT_BUFFER_SIZE

Constructor Summary

Constructors

Constructor and Description
GridJdkMarshaller()

Method Summary

Methods

Modifier and Type	Method and Description
void	marshal(Object obj, OutputStream out) Marshals object to the output stream.
String	toString()
<T> T	unmarshal(InputStream in, ClassLoader clsLdr) Unmarshals object from the output stream using given class loader.

Methods inherited from class org.gridgain.grid.marshaller.GridAbstractMarshaller

marshal, unmarshal

Methods inherited from class java.lang.Object

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

Constructor Detail

GridJdkMarshaller

public GridJdkMarshaller()

Method Detail

marshal

public void marshal(@Nullable
           Object obj,
           OutputStream out)
             throws GridException

Marshals object to the output stream. This method should not close given output stream.

Parameters:

obj - Object to marshal.

out - Output stream to marshal into.

Throws:

GridException - If marshalling failed.

unmarshal

public <T> T unmarshal(InputStream in,
              @Nullable
              ClassLoader clsLdr)
            throws GridException

Unmarshals object from the output stream using given class loader. This method should not close given input stream.

Type Parameters:

T - Type of unmarshalled object.

Parameters:

in - Input stream.

clsLdr - Class loader to use.

Returns:

Unmarshalled object.

Throws:

GridException - If unmarshalling failed.

toString

public String toString()

Overrides:

toString in class Object