Package com.ibm.as400.resource

Class BufferedResourceList

java.lang.Object

com.ibm.as400.resource.ResourceList

com.ibm.as400.resource.BufferedResourceList

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

SystemResourceList

public class BufferedResourceList
extends ResourceList

Deprecated.

Use packages com.ibm.as400.access and com.ibm.as400.access.list instead.

The BufferedResourceList class represents a subclass of the ResourceList class which manages a list of resources and buffers them efficiently. This class is intended to be extended and customized by subclasses.

The list is retrieved in pages, and each page contains multiple resources (those which make up the list). The higher that page size, the more resources are retrieved at once. While the page size does not affect functionality of the list, it may influence performance. For instance, setting the page size to match the number of rows presented in a GUI or servlet may improve overall response time. Call the setPageSize() method to set a specific page size.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
BufferedResourceList()	Deprecated. Constructs a BufferedResourceList object.
BufferedResourceList(Presentation presentation, ResourceMetaData[] attributeMetaData, ResourceMetaData[] selectionMetaData, ResourceMetaData[] sortMetaData)	Deprecated. Constructs a BufferedResourceList object.

Method Summary

Modifier and Type	Method	Description
void	close()	Deprecated. Closes the list.
protected void	fireResourceAdded(Resource resource, long index)	Deprecated. Fires a resourceAdded() ResourceListEvent.
int	getNumberOfPages()	Deprecated. Returns the number of pages in the list buffer.
int	getPageSize()	Deprecated. Returns the page size of the list buffer.
boolean	isResourceAvailable(long index)	Deprecated. Indicates if the resource is available.
void	open()	Deprecated. Opens the list.
void	refreshContents()	Deprecated. Refreshes the contents of the list.
Resource	resourceAt(long index)	Deprecated. Returns the resource specified by the index.
void	setNumberOfPages(int numberOfPages)	Deprecated. Sets the number of pages in the list buffer.
void	setPageSize(int pageSize)	Deprecated. Sets the page size of the list buffer.

Methods inherited from class com.ibm.as400.resource.ResourceList

addActiveStatusListener, addPropertyChangeListener, addResourceListListener, addVetoableChangeListener, arePropertiesFrozen, establishConnection, fireBusy, fireIdle, fireLengthChanged, fireListClosed, fireListCompleted, fireListInError, fireListOpened, firePropertyChange, fireVetoableChange, freezeProperties, getAttributeMetaData, getAttributeMetaData, getListLength, getPresentation, getSelectionMetaData, getSelectionMetaData, getSelectionValue, getSelectionValue, getSortMetaData, getSortMetaData, getSortOrder, getSortValue, getSystem, isBidiEnabled, isComplete, isConnectionEstablished, isInError, isOpen, refreshStatus, removeActiveStatusListener, removePropertyChangeListener, removeResourceListListener, removeVetoableChangeListener, resources, setAttributeMetaData, setPresentation, setSelectionValue, setSelectionValue, setSortOrder, setSortValue, setSystem, toString, waitForComplete, waitForResource

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferedResourceList

public BufferedResourceList()

Deprecated.

Constructs a BufferedResourceList object.

BufferedResourceList

public BufferedResourceList(Presentation presentation,
                            ResourceMetaData[] attributeMetaData,
                            ResourceMetaData[] selectionMetaData,
                            ResourceMetaData[] sortMetaData)

Deprecated.

Constructs a BufferedResourceList object.

Parameters:

presentation - The presentation.

attributeMetaData - The attribute meta data, or null if not applicable.

selectionMetaData - The selection meta data, or null if not applicable.

sortMetaData - The sort meta data, or null if not applicable.

Method Detail

close

public void close()
           throws ResourceException

Deprecated.

Closes the list. No further resources can be loaded. The list must be closed in order to clean up resources appropriately. This method has no effect if the list is already closed. This method fires a listClosed() ResourceListEvent.

Overrides:

close in class ResourceList

Throws:

ResourceException - If an error occurs.

fireResourceAdded

protected void fireResourceAdded(Resource resource,
                                 long index)

Deprecated.

Fires a resourceAdded() ResourceListEvent.

Overrides:

fireResourceAdded in class ResourceList

Parameters:

resource - The resource.

index - The index.

getNumberOfPages

public int getNumberOfPages()

Deprecated.

Returns the number of pages in the list buffer.

Returns:

The number of pages in the list buffer.

getPageSize

public int getPageSize()

Deprecated.

Returns the page size of the list buffer.

Returns:

The page size, in number of resources, of the list buffer.

isResourceAvailable

public boolean isResourceAvailable(long index)
                            throws ResourceException

Deprecated.

Indicates if the resource is available. This means that the resource has been loaded.

Overrides:

isResourceAvailable in class ResourceList

Parameters:

index - The index.

Returns:

true if the resource is available, false if the resource is not available or the list is not open.

Throws:

ResourceException - If an error occurs.

open

public void open()
          throws ResourceException

Deprecated.

Opens the list. The list must be open in order to perform most operations. This method has no effect if the list is already opened.

Overrides:

open in class ResourceList

Throws:

ResourceException - If an error occurs.

refreshContents

public void refreshContents()
                     throws ResourceException

Deprecated.

Refreshes the contents of the list.

This will implicitly open the list if needed.

Overrides:

refreshContents in class ResourceList

Throws:

ResourceException - If an error occurs.

resourceAt

public Resource resourceAt(long index)
                    throws ResourceException

Deprecated.

Returns the resource specified by the index.

This will implicitly open the list if needed.

Overrides:

resourceAt in class ResourceList

Parameters:

index - The index.

Returns:

The resource specified by the index, or null if the resource is not yet available.

Throws:

ResourceException - If an error occurs.

setNumberOfPages

public void setNumberOfPages(int numberOfPages)

Deprecated.

Sets the number of pages in the list buffer. This cannot be set when the list is open.

Parameters:

numberOfPages - The number of pages.

setPageSize

public void setPageSize(int pageSize)

Deprecated.

Sets the page size of the list buffer. This cannot be set when the list is open.

Parameters:

pageSize - The page size, in number of resources.