org.eclipse.xtext.web.server.model

Class AbstractCachedService<T extends IServiceResult>

java.lang.Object

org.eclipse.xtext.web.server.model.AbstractCachedService<T>

Direct Known Subclasses:

GeneratorService, HighlightingService, ValidationService

public abstract class AbstractCachedService<T extends IServiceResult>
extends java.lang.Object

Superclass for services that support caching their results in the document. Such a service is not necessarily precomputed automatically after a document change; this happens only if the service is registered in the PrecomputedServiceRegistry.

Constructor Summary

Constructors

Constructor and Description
AbstractCachedService()

Method Summary

Modifier and Type	Method and Description
abstract T	compute(IXtextWebDocument it, org.eclipse.xtext.util.CancelIndicator cancelIndicator) Perform the actual computations to obtain a result.
T	getResult(XtextWebDocumentAccess it) If a cached result is available, that instance is returned.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCachedService

public AbstractCachedService()

Method Detail

getResult

public T getResult(XtextWebDocumentAccess it)

If a cached result is available, that instance is returned. Otherwise a new result is obtained with compute(IXtextWebDocument, CancelIndicator).

compute

public abstract T compute(IXtextWebDocument it,
                          org.eclipse.xtext.util.CancelIndicator cancelIndicator)

Perform the actual computations to obtain a result. This method should not be called directly from the service dispatcher; use getResult(XtextWebDocumentAccess) instead in order to avoid duplicate computations.