Class ExtractorProcessor

ExtractorProcessor is an EntryProcessor implementation that extracts a value from an object cached a NamedMap. A common usage pattern is:

  cache.invoke(oKey, new ExtractorProcessor(extractor));

For clustered caches using the ExtractorProcessor could significantly reduce the amount of network traffic.

Hierarchy

EntryProcessor
- ExtractorProcessor

Index

Constructors

Properties

@class extractor

Methods

Constructors

constructor

new ExtractorProcessor(extractorOrMethod: undefined | string | ValueExtractor): ExtractorProcessor
Construct an ExtractorProcessor using the given extractor or method name.
Parameters
- extractorOrMethod: undefined | string | ValueExtractor
  
  the extractor.ValueExtractor to use by this filter or the name of the method to invoke via reflection
Returns ExtractorProcessor

Overrides EntryProcessor.constructor

Properties

@class

@class: string

extractor

extractor: ValueExtractor

The underlying value extractor.

Methods

andThen

andThen(processor: EntryProcessor<any, any, any>): CompositeProcessor<any, any>
Returns a CompositeProcessor comprised of this and the provided processor.

Returns
a CompositeProcessor comprised of this and the provided processor
Parameters
- processor: EntryProcessor<any, any, any>
  
  the next processor
Returns CompositeProcessor<any, any>

Inherited from EntryProcessor.andThen

when

when(filter: Filter): EntryProcessor<any, any, any>
Returns a ConditionalProcessor comprised of this processor and the provided filter.

The specified entry processor gets invoked if and only if the filter applied to the entry evaluates to true; otherwise the result of the invocation will return null.
Parameters
- filter: Filter
  
  the filter
Returns EntryProcessor<any, any, any>

Inherited from EntryProcessor.when