Eclipse GMF Guide (Galileo) - MarkerNavigationService.MarkerNavigationProviderDescriptor (Eclipse GMF Documentation)

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org.eclipse.gmf.runtime.common.ui.services.marker
Class MarkerNavigationService.MarkerNavigationProviderDescriptor

java.lang.Object
  

org.eclipse.gmf.runtime.common.core.service.AbstractProvider
      

org.eclipse.gmf.runtime.common.core.service.Service.ProviderDescriptor
          
org.eclipse.gmf.runtime.common.ui.services.marker.MarkerNavigationService.MarkerNavigationProviderDescriptor

All Implemented Interfaces:: java.util.EventListener, IProvider, IProviderChangeListener

Enclosing class:: MarkerNavigationService

protected static class MarkerNavigationService.MarkerNavigationProviderDescriptor
extends Service.ProviderDescriptor
extends Service.ProviderDescriptor

Marker Navigation Provider Descriptor.

This class is a descriptor for an IMarkerNavigationProvider that is defined by an XML configuration element.

Field Summary

protected static java.lang.String A_NAME
          The name of the 'name' XML attribute.

protected static java.lang.String E_MARKER_TYPE
          The name of the 'MarkerType' XML element.

Fields inherited from class org.eclipse.gmf.runtime.common.core.service. Service.ProviderDescriptor

A_CLASS, A_PLUGIN, E_POLICY, policy, policyInitialized, provider

Constructor Summary

protected MarkerNavigationService.MarkerNavigationProviderDescriptor ( IConfigurationElement element)
          Constructs a IMarkerNavigationProvider descriptor for the specified configuration element.

Method Summary

boolean provides ( IOperation operation)
          Determine if the corresponding provider accepts the operation.

Methods inherited from class org.eclipse.gmf.runtime.common.core.service. Service.ProviderDescriptor

getElement, getPolicy, getProvider, providerChanged, toString

Methods inherited from class org.eclipse.gmf.runtime.common.core.service. AbstractProvider

addProviderChangeListener, fireProviderChange, removeProviderChangeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.gmf.runtime.common.core.service. IProvider

addProviderChangeListener, removeProviderChangeListener

Field Detail

A_NAME

protected static final java.lang.String A_NAME

The name of the 'name' XML attribute.

See Also:: Constant Field Values

E_MARKER_TYPE

protected static final java.lang.String E_MARKER_TYPE

The name of the 'MarkerType' XML element.

See Also:: Constant Field Values

Constructor Detail

MarkerNavigationService.MarkerNavigationProviderDescriptor

protected MarkerNavigationService.MarkerNavigationProviderDescriptor(
IConfigurationElement element)

Constructs a IMarkerNavigationProvider descriptor for the specified configuration element.

The configuration element is examined to obtain the list of marker types that are supported by the corresponding provider.

Parameters:: element - The configuration element describing the provider.

Method Detail

provides

public boolean provides(
IOperation operation)

Determine if the corresponding provider accepts the operation. Providers are trivially rejected if they do not support the associated marker type. However, even if the marker type is supported, the provider can reject the given operation.

Specified by:: provides in interface IProvider
Overrides:: provides in class Service.ProviderDescriptor

Parameters:: operation - The operation in question.
Returns:: true if this descriptor's policy or provider provides the operation; false otherwise.
See Also:: IProvider.provides(org.eclipse.gmf.runtime.common.core.service.IOperation)