com.tangosol.util.processor

Class ScriptProcessor<K,V,R>

java.lang.Object

com.tangosol.util.AbstractScript

com.tangosol.util.processor.ScriptProcessor<K,V,R>

Type Parameters:

K - the type of the Map entry key

V - the type of the Map entry value

R - the type of value returned by the InvocableMap.EntryProcessor

All Implemented Interfaces:

ExternalizableLite, PortableObject, InvocableMap.EntryProcessor<K,V,R>, Serializable

public class ScriptProcessor<K,V,R>
extends AbstractScript
implements InvocableMap.EntryProcessor<K,V,R>

ScriptProcessor is an InvocableMap.EntryProcessor that wraps a script written in one of the languages supported by Graal VM.

Since:

14.1.1.0

Author:

mk 2019.07.26

Field Summary

Fields inherited from class com.tangosol.util.AbstractScript

m_aoArgs, m_sLanguage, m_sName

Constructor Summary

Constructors

Constructor and Description
ScriptProcessor() Default constructor for deserialization.
ScriptProcessor(String language, String name, Object... args) Create a ScriptProcessor that wraps a script written in the specified language and identified by the specified name.

Method Summary

Modifier and Type	Method and Description
R	process(InvocableMap.Entry<K,V> entry) Process a Map.Entry object.

Methods inherited from class com.tangosol.util.AbstractScript

readExternal, readExternal, writeExternal, writeExternal

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.tangosol.util.InvocableMap.EntryProcessor

processAll

Constructor Detail

ScriptProcessor

public ScriptProcessor()

Default constructor for deserialization.

ScriptProcessor

public ScriptProcessor(String language,
                       String name,
                       Object... args)

Create a ScriptProcessor that wraps a script written in the specified language and identified by the specified name. The specified args will be passed during execution of the script.

Parameters:

language - the language the script is written. Currently, only "js" (for JavaScript) is supported

name - the name of the InvocableMap.EntryProcessor that needs to be executed

args - the arguments to be passed to the InvocableMap.EntryProcessor

Method Detail

process

public R process(InvocableMap.Entry<K,V> entry)

Description copied from interface: InvocableMap.EntryProcessor

Process a Map.Entry object.

Note: if this method throws an exception, all modifications to the supplied entry or any other entries retrieved via the BackingMapContext.getBackingMapEntry(java.lang.Object) API will be rolled back leaving all underlying values unchanged.

Specified by:

process in interface InvocableMap.EntryProcessor<K,V,R>

Parameters:

entry - the Entry to process

Returns:

the result of the processing, if any