org.eclipse.sphinx.platform.util

Class ExtensionClassDescriptor<T>

java.lang.Object

org.eclipse.sphinx.platform.util.ExtensionClassDescriptor<T>

Direct Known Subclasses:

CheckValidatorDescriptor, DocumentationViewFormatterDescriptor, ServiceClassDescriptor, WorkflowHandlerDescriptor

public class ExtensionClassDescriptor<T>
extends java.lang.Object

Allows lazy loading of plug-in classes. Must be used when needed to initialize classes contributed through extension points.

Constructor Summary

Constructors

Constructor and Description
ExtensionClassDescriptor(org.eclipse.core.runtime.IConfigurationElement configurationElement) Create an ExtensionClassDescriptor wrapped around a configuration element

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
java.lang.String	getClassName()
java.lang.String	getContributorPluginId()
java.lang.String	getId()
T	getInstance() Returns a cached instance of the class creating one if necessary
java.lang.String	getOverride()
int	hashCode()
T	newInstance() Creates a new extension class instance.
boolean	overrides(ExtensionClassDescriptor<?> otherDescriptor) Determines if this service registration dominates another service registration.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtensionClassDescriptor

public ExtensionClassDescriptor(org.eclipse.core.runtime.IConfigurationElement configurationElement)

Create an ExtensionClassDescriptor wrapped around a configuration element

Parameters:

configurationElement - the configuration element

Method Detail

getContributorPluginId

public java.lang.String getContributorPluginId()

getId

public java.lang.String getId()

getClassName

public java.lang.String getClassName()

getOverride

public java.lang.String getOverride()

getInstance

public T getInstance()
              throws java.lang.Exception

Returns a cached instance of the class creating one if necessary

Returns:

The class instance

Throws:

java.lang.Exception

newInstance

public T newInstance()
              throws java.lang.Exception

Creates a new extension class instance.

Returns:

Throws:

java.lang.Exception

overrides

public boolean overrides(ExtensionClassDescriptor<?> otherDescriptor)

Determines if this service registration dominates another service registration. A service registration dominates another registration if it overrides the class of the other service registration.

Parameters:

otherService - the other service registration for which the domination relation is to be determined

Returns:

true if the other service registration is dominated, otherwise false

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object