Java Doc for AbstractLazyLoadingItemProvider.java in » GIS » udig-1.1 » net » refractions » udig » project » internal » provider » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » udig 1.1 » net.refractions.udig.project.internal.provider

Source Cross Reference

Class Diagram

Java Document (Java Doc)

net.refractions.udig.project.internal.provider .AbstractLazyLoadingItemProvider

All known Subclasses:   net.refractions.udig.project.internal.provider .MapItemProvider,  net.refractions.udig.project.internal.provider .ProjectItemProvider,
AbstractLazyLoadingItemProvider
public class AbstractLazyLoadingItemProvider extends ItemProviderAdapter (Code)

Field Summary
protected volatile ChildFetcher childFetcher


Constructor Summary
public AbstractLazyLoadingItemProvider(AdapterFactory adapterFactory)


Method Summary
protected ChildFetcher createChildFetcher()
     Creates a new instance of a ChildFetcher .
public Object getChild(Object object, int childIndex)
     Returns the child at the indicated index or null if there is fewer children
Parameters:
  object - the parent object.
Parameters:
  childIndex - the index of the child to return.
public ChildFetcher getChildFetcher()

public Collection getChildren(Object object)

protected Collection<? extends Object> getConcreteChildren(Object object)
     Gets the "real" list of children so that the children in childFetcher doesn't have to be kept in sync with the real data...
public Collection getElements(Object arg0)

protected LoadingPlaceHolder getLoadingItem()
     Returns a placeholder item.

Field Detail
childFetcher
protected volatile ChildFetcher childFetcher(Code)

Constructor Detail
AbstractLazyLoadingItemProvider
public AbstractLazyLoadingItemProvider(AdapterFactory adapterFactory)(Code)

Method Detail
createChildFetcher
protected ChildFetcher createChildFetcher()(Code)
Creates a new instance of a ChildFetcher . Does not retrieve an old instance. new instance of a ChildFetcher

getChild
public Object getChild(Object object, int childIndex)(Code)
Returns the child at the indicated index or null if there is fewer children
Parameters:
  object - the parent object.
Parameters:
  childIndex - the index of the child to return. the child at the indicated index or null if there is fewer children

getChildFetcher
public ChildFetcher getChildFetcher()(Code)

getChildren
public Collection getChildren(Object object)(Code)

getConcreteChildren
protected Collection<? extends Object> getConcreteChildren(Object object)(Code)
Gets the "real" list of children so that the children in childFetcher doesn't have to be kept in sync with the real data...
Parameters:
  object - object that is the parent.

getElements
public Collection getElements(Object arg0)(Code)

getLoadingItem
protected LoadingPlaceHolder getLoadingItem()(Code)
Returns a placeholder item. It should be a stateless object and a singleton. a placeholder item. It should be a stateless object and a singleton.

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