org.openspaces.remoting.scripting
Class ResourceLazyLoadingScript

java.lang.Object
  org.openspaces.remoting.scripting.ResourceLazyLoadingScript

All Implemented Interfaces:

Externalizable, Serializable, BroadcastIndicator, LazyLoadingScript, Script

public class ResourceLazyLoadingScript
extends Object
implements LazyLoadingScript, Externalizable

A resource lazy loading script is a lazy loading script that uses Spring abstraction on top of resources on top of a resource. The script resource location uses Spring notation for location (similar to URL, with the addition of classpath: prefix support).

When the scipt is constructed, the actual script contents is not loaded. Only if needed the script contents will be loaded. See LazyLoadingRemoteInvocationAspect.

Author:

kimchy

See Also:

Serialized Form

Constructor Summary

ResourceLazyLoadingScript()

ResourceLazyLoadingScript(String name, String type, String resoruceLocation)
Constructs a new lazy loading sctipt.

Method Summary

<T,Y> ResourceLazyLoadingScript	broadcast(RemoteResultReducer<T,Y> reducer) Broadcast the execution of this script over all active partitions.
ResourceLazyLoadingScript	cache(boolean shouldCache) Should this script be cached or not.
Object[]	getMetaArguments() Returns a set of meta arguments that are used for remote invocation.
String	getName() Returns the name of the script.
Map<String,Object>	getParameters() Returns the set of parameters that will be passes to the script execution.
RemoteResultReducer	getReducer() Returns the reducer that will be used in case broadcasting is enabled or not.
Object	getRouting() Returns the routing index (which partition it will "hit").
String	getScriptAsString() Returns the scirpt string only if it was already loaded using loadScript().
String	getType() Returns the type of a script.
boolean	hasScript() Returns true if the script has been loaded.
void	loadScript() Loads the scirpt into memory from the resource location.
ResourceLazyLoadingScript	metaArguments(Object... metaArguments) Adds another meta argument to the script
ResourceLazyLoadingScript	name(String name) Sets the name of the script.
ResourceLazyLoadingScript	parameter(String name, Object value) Puts a parameter that can be used during script execution.
void	readExternal(ObjectInput in)
ResourceLazyLoadingScript	routing(Object routing) Sets the routing index (which partition this will "hit") for the script.
ResourceLazyLoadingScript	script(String resourceLocation) Sets the actual script source.
Boolean	shouldBroadcast() Return true if broadcast should be enabled or not.
boolean	shouldCache() Returns if this script should be cached or not.
String	toString()
ResourceLazyLoadingScript	type(String type) Sets the type of the script.
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceLazyLoadingScript

public ResourceLazyLoadingScript()

ResourceLazyLoadingScript

public ResourceLazyLoadingScript(String name,
                                 String type,
                                 String resoruceLocation)

Constructs a new lazy loading sctipt.

Parameters:

name - The script name (used as a unique identifier for cachable scripts).

type - The type of the script executed

resoruceLocation - The resource location (similar to URL syntax, with additional support for classpath: prefix).

Method Detail

getScriptAsString

public String getScriptAsString()

Returns the scirpt string only if it was already loaded using loadScript().

Specified by:

getScriptAsString in interface Script

hasScript

public boolean hasScript()

Returns true if the script has been loaded.

Specified by:

hasScript in interface LazyLoadingScript

loadScript

public void loadScript()

Loads the scirpt into memory from the resource location.

Specified by:

loadScript in interface LazyLoadingScript

getName

public String getName()

Returns the name of the script. Must uniquely identify a script.

Specified by:

getName in interface Script

getType

public String getType()

Returns the type of a script. For example: groovy.

Specified by:

getType in interface Script

getParameters

public Map<String,Object> getParameters()

Returns the set of parameters that will be passes to the script execution.

Specified by:

getParameters in interface Script

shouldCache

public boolean shouldCache()

Returns if this script should be cached or not.

Specified by:

shouldCache in interface Script

getRouting

public Object getRouting()

Returns the routing index (which partition it will "hit").

Specified by:

getRouting in interface Script

getReducer

public RemoteResultReducer getReducer()

Description copied from interface: BroadcastIndicator

Returns the reducer that will be used in case broadcasting is enabled or not.

Specified by:

getReducer in interface BroadcastIndicator

shouldBroadcast

public Boolean shouldBroadcast()

Description copied from interface: BroadcastIndicator

Return true if broadcast should be enabled or not. Return null if should not affect it in any manner.

Specified by:

shouldBroadcast in interface BroadcastIndicator

getMetaArguments

public Object[] getMetaArguments()

Description copied from interface: Script

Returns a set of meta arguments that are used for remote invocation.

Specified by:

getMetaArguments in interface Script

See Also:

SpaceRemotingInvocation.getMetaArguments()

name

public ResourceLazyLoadingScript name(String name)

Sets the name of the script.

script

public ResourceLazyLoadingScript script(String resourceLocation)

Sets the actual script source.

type

public ResourceLazyLoadingScript type(String type)

Sets the type of the script. For example: groovy.

cache

public ResourceLazyLoadingScript cache(boolean shouldCache)

Should this script be cached or not. Deaults to true.

parameter

public ResourceLazyLoadingScript parameter(String name,
                                           Object value)

Puts a parameter that can be used during script execution.

Parameters:

name - The name of the parameter.

value - The value of the parameter.

routing

public ResourceLazyLoadingScript routing(Object routing)

Sets the routing index (which partition this will "hit") for the script. Defaults to a random routing. Defaults to a random routing.

broadcast

public <T,Y> ResourceLazyLoadingScript broadcast(RemoteResultReducer<T,Y> reducer)

Broadcast the execution of this script over all active partitions. Optionally use a reducer to reduce the results.

metaArguments

public ResourceLazyLoadingScript metaArguments(Object... metaArguments)

Adds another meta argument to the script

See Also:

Script.getMetaArguments(), SpaceRemotingInvocation.getMetaArguments(), ScriptingMetaArgumentsHandler

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

toString

public String toString()

Overrides:

toString in class Object